Date   

Re: Mach1 problem please assist

Ron Kramer
 

Looking at older logs. The problem seems to have started recently. (there should be no reason for it on my part "HARDWARE" speaking.  
Is there an option in PHD that might cause this?  I had been playing with settings and even swapped my ASI290 for the Lodestar due to (over all poor guiding RMS error). 
While trying to improve this, this RA KICK arose. 

Here is a log from 5-1-2020
The RA kick doesn't seem to be happening. 

noraprob.JPG


On Fri, Jun 19, 2020 at 11:41 AM Ron Kramer <ronkramer1957@...> wrote:
I tried the park1 - (move manually to park 5) unpack from 5 and  (no change)  what is that supposed to do?  In my head, I can't think of any benefit/change.  The worm still continues doing what it does. ?

If this clearly is something in the gear box that isn't easily remedied by myself, I'd like to ship the box to AP for service.  I'd rather not sent the whole mount, the RA gearbox is a pretty easy ship item.




On Fri, Jun 19, 2020 at 11:03 AM Ron Kramer via groups.io <ronkramer1957=gmail.com@groups.io> wrote:
Next night - I'll do a 2-3-4 worm cycle unguided.  I also may have one in a older log. I'll work on that. 
LAST NIGHTS. 

image.png

On Thu, Jun 18, 2020 at 9:22 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
One other thing that would be extremely helpful is if you ran the mount for about 2 worm cycles (about 15 minutes) with guiding effectively off so i can see what the worm is actually doing. Posting a guided graph hides a lot of stuff that makes it hard to do actual trouble shooting.

Rolando

-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 5:57 pm
Subject: Re: [ap-gto] Mach1 problem please assist

I'll post then then try groups interface.
I logged out my best guess on each incursion.  There are no seconds so I had to estimate.
This would be the later set of errors that kicked UPWARD

about  12:38.55 sec
about  12:45.20 sec
about  12:51.50 sec
about  12:58.10
about  01:04.40
about  01:11.05
about  01:17.25
about  01:23.50 sec
about  01:30.15 sec

looks like they're spaced 6 min  20 seconds about.   That's about a worm repeat? 

On Thu, Jun 18, 2020 at 6:50 PM Liam Plybon <liam@...> wrote:
Ron,
 
I believe you may have better luck by using an image hosting server and posting a link.
 
Groups is set to compress images automatically after complaints by users with slow or expensive internet who would have to download large images each time one was sent on the group. Especially here, where we all love sharing massive astro-images that can gobble up bandwidth.
 
Liam
 
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Thursday, June 18, 2020 17:40
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist
 
Yep - one continuous run. Not near the meridian.  I'm attaching pics in email. It asks original, best fit etc.  Upon appearing it's a small little blurry version.
would it make them more clear if I enter the post in the groups interface and not in email?   These are BIG ANC CLEAR AND SHARP when I attach them.

I
shape.JPG
dental in shape when zooming in.
 
On Thu, Jun 18, 2020 at 5:11 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
The graph shows 7 RA motions in the down direction, then a number of RA moves in the opposite direction. Is this over a period of time continuously? In other words, was this graph taken without interruption?
 
Roland
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 3:42 pm
Subject: Re: [ap-gto] Mach1 problem please assist
Capture is CLEAR and sharp. not sure what "GROUPS" does to images. I hate GROUPS.  Forums are better and allow you to retain/library of topics and Q&A, = (
I'll attach it again.  Is there a limit? size? restriction?    I'll attach at ORIGINAL SIZE

RA KICK.JPG
 
On Thu, Jun 18, 2020 at 4:37 PM Ron Kramer <ronkramer1957@...> wrote:
I don't own use a keypad.   I did try that SWAP OVER - but I then cleaned it and not sure where it ended up.  Since the last test clearly had the saime  KICKS. I can do ig again.  
What does that do?  I think it might track toward the other side of the groove?  I'll swap it over again and see if it helps since re-greasing.

NICELY - greasing lowered my RA RMA error almost 50%.  Here is my history.

Mount arrived. I guided around 1.0.  Always trying to tweak it - not sure why but months later I was guiding at  .24 RMS error (arc set). yeah - that's awesome.
MANY months of that... The RASA guided better than my long APO.  But late winter I swapped RASA V1 for a RASA V2 (heavier) and ever since my guiding was 1.5 average.  My image scale is 1.69 
lately - the RA kicks put me into  1.7-2.0.  I get double stars on every other sub. 
I re-greased the RA and last night afterwards I was 1.1max and usuall around .89 tot rms arc sec. (nice)  But the RA still kicks and makes for double stars.  My dec was still poor so I'll regrease dec next and check
my alignment. (it's fairly perminent in a dome, but I have a tripod leg/mount and it "can move".  I usually check alignment 1-2 times a year or when ever guiding quality decreases. 
I am not aware of any gear scraping - I always release it clean...  I have on 3-4 occasions allowed it to track into a leg and (stop). Not sure if that hurts anything. But seems to work fine next time.

I don't understand why the RA kick changed from lower to higher (E to W?) the mount orientation did not change. 
I'll swap the part positions over and try again tonight.  During regreasing/cleaning I saw nothing strange. No chunks or crud.  old Grease moved quickly,  freely. not at all gummy. 
I have some pics n video.
 
 
 
On Thu, Jun 18, 2020 at 3:39 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Hello Ron,
 
Howard won't be able to answer you at this time.
 
Can you do a test for me?
 
With keypad in Autostart NO, send the mount to Park1 and turn off power.
Loosen the clutches and move the mount to Park5 manually.
Turn power back on and press "Resume from Park5"
 
Now check to see if the RA anomaly persists. let me know the results and we can go from there.
 
By the way, your screen shot is so blurry I cannot make out any details on it.
 
Rolando
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 1:35 pm
Subject: Re: [ap-gto] Mach1 problem please assist
I re-greased the RA.  It was really relaxing and nothing to fear.  No springs jumped out at me or other crazy surprises. 
The first test last night showed my RA improved by almost 50% reduction in RA RMS error.  (I'm shocked).

On the bad side, I did not fix my RA KICK problem.  I did not see RA worm flaws except on the very end (3 turns) of the worm and I'm sure that is never in contact with the drive gear.
I have emailed Howard... but wondered if it helps determine the problem from last night's guide log.  I was surprised to see it FLIPPED the RA kick.  (no meridian flip took place) why would it flip? 

RA KICK.JPG
 
On Wed, Jun 17, 2020 at 4:21 PM Ron Kramer via groups.io <ronkramer1957=gmail.com@groups.io> wrote:
Kit arrived late last night. (UPS error)
Today it was hot in the dome so I just did the RA worm and drive gear. And the side gears)
I hope to test tonight and see if it solves my RA kicking problem. 

I inspected the worm and was in fine shape - EXCEPT I had some very rough area which I don't think matters. It was way over on the very edges of the worm... like the last 2-3 turns were rough. I don't believe this are ever used? 

I greased the entire worm even though it said just the center is all that's needed. Figured it would help ward off corrosion.   The process wasn't scary once the RA box was removed. In fact (I don't recommend this) but I didn't even take my gear off the mount.  RASA 11 + essentials upside down at times.   I forgot about the cords but never turned more than 180.  I actually read the instructions after I was done. (common for me, I like to dig in) then see what I did wrong. 

SOUNDS nice... Will see if the RA hiccups tonight in a guiding test.  if all is good I'll do DEC tomorrow but RA was a primary concern as it would jump and killed every other sub.

Will see tonight.

 
 
 
On Wed, Jun 10, 2020 at 4:33 PM Marj Christen <marj@...> wrote:
Ron,
 
Now that our production staff has returned, the turnaround time for repairs is pretty quick. There is no standard cost for a “ tune up” since it depends on what is involved and if parts have to be replaced.
 
Try regreasing first and contact us again if you can’t resolve the issue.
 
Clear Skies,
 
Marj Christen
Astro-Physics, Inc
11250 Forest Hills Rd
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
 
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Wednesday, June 10, 2020 1:33 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist
 
I'm about to try to re-grease - I'll see if I can see something during inspection.  Is swapping the worm something easy I can do at home? 
I don't want to do anything complicated. I don't believe I've nicked a gear - I only use park3.  But it has come against the pier during a few 3-4 occasions? Would that do anything?

How much does it cost to send it in for a tune up?  HOW LONG would I be without it?  I'm near in Grand Rapids, MI.
I'll look for a clump of anything in the worm teeth.  If I send it in I don 't want it waiting for weeks/days. What is time frame? 
I ordered the grease, I'll see how that goes.
 
 
On Tue, Jun 9, 2020 at 7:51 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Forget backlash in RA. There is no such thing. RA always tracks so it never reverses. Backlash does not enter into tracking.
 
You may have damaged your worm teeth when you backed off the worm to do a fine balance. You may have forgotten to do it only in the Park3 position. If that's the case, the worm may have a nick in the teeth and it will show up as a repeating pattern once every 6.4 minutes.
 
Rolando
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Tue, Jun 9, 2020 3:30 pm
Subject: [ap-gto] Mach1 problem please assist
My mach1 is about 2.5 years old.  I was getting awesome guiding with a total rms error of .24 arc sec.  
Winter came and went and this spring it's been horrible.  like  1.4.   My image scale is about 1.69 so I lived with that for a while, but lately
the RA is  KICKING in almost a timely fashion.  One of these kicks makes double stars.  Around 1/2 my subs have to be deleted.
Nothing I have tried to far has fixed it.
I will include the log from a couple nights ago to show what I mean. 
I did a new calibration - then a guide assistant for a while... then set recommendations and let it guide a while.
You'll see   RA  kicking like a mule in a rather evenly timed fashion!?!  
I would so appreciate help with this.  Someone in PHD said make sure the mount software/HC doesn't have backlash on.  
I DO NOT USE or own a HC and I don't know of any BackLash setting in APCC pro.  I'm going nuts. 
 
 

 
--

 
--

 
--

 
--

 
--

 
--


--



--



--



Re: Mach1 problem please assist

Ron Kramer
 

I tried the park1 - (move manually to park 5) unpack from 5 and  (no change)  what is that supposed to do?  In my head, I can't think of any benefit/change.  The worm still continues doing what it does. ?

If this clearly is something in the gear box that isn't easily remedied by myself, I'd like to ship the box to AP for service.  I'd rather not sent the whole mount, the RA gearbox is a pretty easy ship item.




On Fri, Jun 19, 2020 at 11:03 AM Ron Kramer via groups.io <ronkramer1957=gmail.com@groups.io> wrote:
Next night - I'll do a 2-3-4 worm cycle unguided.  I also may have one in a older log. I'll work on that. 
LAST NIGHTS. 

image.png

On Thu, Jun 18, 2020 at 9:22 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
One other thing that would be extremely helpful is if you ran the mount for about 2 worm cycles (about 15 minutes) with guiding effectively off so i can see what the worm is actually doing. Posting a guided graph hides a lot of stuff that makes it hard to do actual trouble shooting.

Rolando

-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 5:57 pm
Subject: Re: [ap-gto] Mach1 problem please assist

I'll post then then try groups interface.
I logged out my best guess on each incursion.  There are no seconds so I had to estimate.
This would be the later set of errors that kicked UPWARD

about  12:38.55 sec
about  12:45.20 sec
about  12:51.50 sec
about  12:58.10
about  01:04.40
about  01:11.05
about  01:17.25
about  01:23.50 sec
about  01:30.15 sec

looks like they're spaced 6 min  20 seconds about.   That's about a worm repeat? 

On Thu, Jun 18, 2020 at 6:50 PM Liam Plybon <liam@...> wrote:
Ron,
 
I believe you may have better luck by using an image hosting server and posting a link.
 
Groups is set to compress images automatically after complaints by users with slow or expensive internet who would have to download large images each time one was sent on the group. Especially here, where we all love sharing massive astro-images that can gobble up bandwidth.
 
Liam
 
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Thursday, June 18, 2020 17:40
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist
 
Yep - one continuous run. Not near the meridian.  I'm attaching pics in email. It asks original, best fit etc.  Upon appearing it's a small little blurry version.
would it make them more clear if I enter the post in the groups interface and not in email?   These are BIG ANC CLEAR AND SHARP when I attach them.

I
shape.JPG
dental in shape when zooming in.
 
On Thu, Jun 18, 2020 at 5:11 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
The graph shows 7 RA motions in the down direction, then a number of RA moves in the opposite direction. Is this over a period of time continuously? In other words, was this graph taken without interruption?
 
Roland
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 3:42 pm
Subject: Re: [ap-gto] Mach1 problem please assist
Capture is CLEAR and sharp. not sure what "GROUPS" does to images. I hate GROUPS.  Forums are better and allow you to retain/library of topics and Q&A, = (
I'll attach it again.  Is there a limit? size? restriction?    I'll attach at ORIGINAL SIZE

RA KICK.JPG
 
On Thu, Jun 18, 2020 at 4:37 PM Ron Kramer <ronkramer1957@...> wrote:
I don't own use a keypad.   I did try that SWAP OVER - but I then cleaned it and not sure where it ended up.  Since the last test clearly had the saime  KICKS. I can do ig again.  
What does that do?  I think it might track toward the other side of the groove?  I'll swap it over again and see if it helps since re-greasing.

NICELY - greasing lowered my RA RMA error almost 50%.  Here is my history.

Mount arrived. I guided around 1.0.  Always trying to tweak it - not sure why but months later I was guiding at  .24 RMS error (arc set). yeah - that's awesome.
MANY months of that... The RASA guided better than my long APO.  But late winter I swapped RASA V1 for a RASA V2 (heavier) and ever since my guiding was 1.5 average.  My image scale is 1.69 
lately - the RA kicks put me into  1.7-2.0.  I get double stars on every other sub. 
I re-greased the RA and last night afterwards I was 1.1max and usuall around .89 tot rms arc sec. (nice)  But the RA still kicks and makes for double stars.  My dec was still poor so I'll regrease dec next and check
my alignment. (it's fairly perminent in a dome, but I have a tripod leg/mount and it "can move".  I usually check alignment 1-2 times a year or when ever guiding quality decreases. 
I am not aware of any gear scraping - I always release it clean...  I have on 3-4 occasions allowed it to track into a leg and (stop). Not sure if that hurts anything. But seems to work fine next time.

I don't understand why the RA kick changed from lower to higher (E to W?) the mount orientation did not change. 
I'll swap the part positions over and try again tonight.  During regreasing/cleaning I saw nothing strange. No chunks or crud.  old Grease moved quickly,  freely. not at all gummy. 
I have some pics n video.
 
 
 
On Thu, Jun 18, 2020 at 3:39 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Hello Ron,
 
Howard won't be able to answer you at this time.
 
Can you do a test for me?
 
With keypad in Autostart NO, send the mount to Park1 and turn off power.
Loosen the clutches and move the mount to Park5 manually.
Turn power back on and press "Resume from Park5"
 
Now check to see if the RA anomaly persists. let me know the results and we can go from there.
 
By the way, your screen shot is so blurry I cannot make out any details on it.
 
Rolando
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 1:35 pm
Subject: Re: [ap-gto] Mach1 problem please assist
I re-greased the RA.  It was really relaxing and nothing to fear.  No springs jumped out at me or other crazy surprises. 
The first test last night showed my RA improved by almost 50% reduction in RA RMS error.  (I'm shocked).

On the bad side, I did not fix my RA KICK problem.  I did not see RA worm flaws except on the very end (3 turns) of the worm and I'm sure that is never in contact with the drive gear.
I have emailed Howard... but wondered if it helps determine the problem from last night's guide log.  I was surprised to see it FLIPPED the RA kick.  (no meridian flip took place) why would it flip? 

RA KICK.JPG
 
On Wed, Jun 17, 2020 at 4:21 PM Ron Kramer via groups.io <ronkramer1957=gmail.com@groups.io> wrote:
Kit arrived late last night. (UPS error)
Today it was hot in the dome so I just did the RA worm and drive gear. And the side gears)
I hope to test tonight and see if it solves my RA kicking problem. 

I inspected the worm and was in fine shape - EXCEPT I had some very rough area which I don't think matters. It was way over on the very edges of the worm... like the last 2-3 turns were rough. I don't believe this are ever used? 

I greased the entire worm even though it said just the center is all that's needed. Figured it would help ward off corrosion.   The process wasn't scary once the RA box was removed. In fact (I don't recommend this) but I didn't even take my gear off the mount.  RASA 11 + essentials upside down at times.   I forgot about the cords but never turned more than 180.  I actually read the instructions after I was done. (common for me, I like to dig in) then see what I did wrong. 

SOUNDS nice... Will see if the RA hiccups tonight in a guiding test.  if all is good I'll do DEC tomorrow but RA was a primary concern as it would jump and killed every other sub.

Will see tonight.

 
 
 
On Wed, Jun 10, 2020 at 4:33 PM Marj Christen <marj@...> wrote:
Ron,
 
Now that our production staff has returned, the turnaround time for repairs is pretty quick. There is no standard cost for a “ tune up” since it depends on what is involved and if parts have to be replaced.
 
Try regreasing first and contact us again if you can’t resolve the issue.
 
Clear Skies,
 
Marj Christen
Astro-Physics, Inc
11250 Forest Hills Rd
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
 
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Wednesday, June 10, 2020 1:33 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist
 
I'm about to try to re-grease - I'll see if I can see something during inspection.  Is swapping the worm something easy I can do at home? 
I don't want to do anything complicated. I don't believe I've nicked a gear - I only use park3.  But it has come against the pier during a few 3-4 occasions? Would that do anything?

How much does it cost to send it in for a tune up?  HOW LONG would I be without it?  I'm near in Grand Rapids, MI.
I'll look for a clump of anything in the worm teeth.  If I send it in I don 't want it waiting for weeks/days. What is time frame? 
I ordered the grease, I'll see how that goes.
 
 
On Tue, Jun 9, 2020 at 7:51 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Forget backlash in RA. There is no such thing. RA always tracks so it never reverses. Backlash does not enter into tracking.
 
You may have damaged your worm teeth when you backed off the worm to do a fine balance. You may have forgotten to do it only in the Park3 position. If that's the case, the worm may have a nick in the teeth and it will show up as a repeating pattern once every 6.4 minutes.
 
Rolando
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Tue, Jun 9, 2020 3:30 pm
Subject: [ap-gto] Mach1 problem please assist
My mach1 is about 2.5 years old.  I was getting awesome guiding with a total rms error of .24 arc sec.  
Winter came and went and this spring it's been horrible.  like  1.4.   My image scale is about 1.69 so I lived with that for a while, but lately
the RA is  KICKING in almost a timely fashion.  One of these kicks makes double stars.  Around 1/2 my subs have to be deleted.
Nothing I have tried to far has fixed it.
I will include the log from a couple nights ago to show what I mean. 
I did a new calibration - then a guide assistant for a while... then set recommendations and let it guide a while.
You'll see   RA  kicking like a mule in a rather evenly timed fashion!?!  
I would so appreciate help with this.  Someone in PHD said make sure the mount software/HC doesn't have backlash on.  
I DO NOT USE or own a HC and I don't know of any BackLash setting in APCC pro.  I'm going nuts. 
 
 

 
--

 
--

 
--

 
--

 
--

 
--


--



--




Re: Mach1 problem please assist

Ron Kramer
 

Next night - I'll do a 2-3-4 worm cycle unguided.  I also may have one in a older log. I'll work on that. 
LAST NIGHTS. 

image.png

On Thu, Jun 18, 2020 at 9:22 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
One other thing that would be extremely helpful is if you ran the mount for about 2 worm cycles (about 15 minutes) with guiding effectively off so i can see what the worm is actually doing. Posting a guided graph hides a lot of stuff that makes it hard to do actual trouble shooting.

Rolando

-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 5:57 pm
Subject: Re: [ap-gto] Mach1 problem please assist

I'll post then then try groups interface.
I logged out my best guess on each incursion.  There are no seconds so I had to estimate.
This would be the later set of errors that kicked UPWARD

about  12:38.55 sec
about  12:45.20 sec
about  12:51.50 sec
about  12:58.10
about  01:04.40
about  01:11.05
about  01:17.25
about  01:23.50 sec
about  01:30.15 sec

looks like they're spaced 6 min  20 seconds about.   That's about a worm repeat? 

On Thu, Jun 18, 2020 at 6:50 PM Liam Plybon <liam@...> wrote:
Ron,
 
I believe you may have better luck by using an image hosting server and posting a link.
 
Groups is set to compress images automatically after complaints by users with slow or expensive internet who would have to download large images each time one was sent on the group. Especially here, where we all love sharing massive astro-images that can gobble up bandwidth.
 
Liam
 
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Thursday, June 18, 2020 17:40
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist
 
Yep - one continuous run. Not near the meridian.  I'm attaching pics in email. It asks original, best fit etc.  Upon appearing it's a small little blurry version.
would it make them more clear if I enter the post in the groups interface and not in email?   These are BIG ANC CLEAR AND SHARP when I attach them.

I
shape.JPG
dental in shape when zooming in.
 
On Thu, Jun 18, 2020 at 5:11 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
The graph shows 7 RA motions in the down direction, then a number of RA moves in the opposite direction. Is this over a period of time continuously? In other words, was this graph taken without interruption?
 
Roland
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 3:42 pm
Subject: Re: [ap-gto] Mach1 problem please assist
Capture is CLEAR and sharp. not sure what "GROUPS" does to images. I hate GROUPS.  Forums are better and allow you to retain/library of topics and Q&A, = (
I'll attach it again.  Is there a limit? size? restriction?    I'll attach at ORIGINAL SIZE

RA KICK.JPG
 
On Thu, Jun 18, 2020 at 4:37 PM Ron Kramer <ronkramer1957@...> wrote:
I don't own use a keypad.   I did try that SWAP OVER - but I then cleaned it and not sure where it ended up.  Since the last test clearly had the saime  KICKS. I can do ig again.  
What does that do?  I think it might track toward the other side of the groove?  I'll swap it over again and see if it helps since re-greasing.

NICELY - greasing lowered my RA RMA error almost 50%.  Here is my history.

Mount arrived. I guided around 1.0.  Always trying to tweak it - not sure why but months later I was guiding at  .24 RMS error (arc set). yeah - that's awesome.
MANY months of that... The RASA guided better than my long APO.  But late winter I swapped RASA V1 for a RASA V2 (heavier) and ever since my guiding was 1.5 average.  My image scale is 1.69 
lately - the RA kicks put me into  1.7-2.0.  I get double stars on every other sub. 
I re-greased the RA and last night afterwards I was 1.1max and usuall around .89 tot rms arc sec. (nice)  But the RA still kicks and makes for double stars.  My dec was still poor so I'll regrease dec next and check
my alignment. (it's fairly perminent in a dome, but I have a tripod leg/mount and it "can move".  I usually check alignment 1-2 times a year or when ever guiding quality decreases. 
I am not aware of any gear scraping - I always release it clean...  I have on 3-4 occasions allowed it to track into a leg and (stop). Not sure if that hurts anything. But seems to work fine next time.

I don't understand why the RA kick changed from lower to higher (E to W?) the mount orientation did not change. 
I'll swap the part positions over and try again tonight.  During regreasing/cleaning I saw nothing strange. No chunks or crud.  old Grease moved quickly,  freely. not at all gummy. 
I have some pics n video.
 
 
 
On Thu, Jun 18, 2020 at 3:39 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Hello Ron,
 
Howard won't be able to answer you at this time.
 
Can you do a test for me?
 
With keypad in Autostart NO, send the mount to Park1 and turn off power.
Loosen the clutches and move the mount to Park5 manually.
Turn power back on and press "Resume from Park5"
 
Now check to see if the RA anomaly persists. let me know the results and we can go from there.
 
By the way, your screen shot is so blurry I cannot make out any details on it.
 
Rolando
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 1:35 pm
Subject: Re: [ap-gto] Mach1 problem please assist
I re-greased the RA.  It was really relaxing and nothing to fear.  No springs jumped out at me or other crazy surprises. 
The first test last night showed my RA improved by almost 50% reduction in RA RMS error.  (I'm shocked).

On the bad side, I did not fix my RA KICK problem.  I did not see RA worm flaws except on the very end (3 turns) of the worm and I'm sure that is never in contact with the drive gear.
I have emailed Howard... but wondered if it helps determine the problem from last night's guide log.  I was surprised to see it FLIPPED the RA kick.  (no meridian flip took place) why would it flip? 

RA KICK.JPG
 
On Wed, Jun 17, 2020 at 4:21 PM Ron Kramer via groups.io <ronkramer1957=gmail.com@groups.io> wrote:
Kit arrived late last night. (UPS error)
Today it was hot in the dome so I just did the RA worm and drive gear. And the side gears)
I hope to test tonight and see if it solves my RA kicking problem. 

I inspected the worm and was in fine shape - EXCEPT I had some very rough area which I don't think matters. It was way over on the very edges of the worm... like the last 2-3 turns were rough. I don't believe this are ever used? 

I greased the entire worm even though it said just the center is all that's needed. Figured it would help ward off corrosion.   The process wasn't scary once the RA box was removed. In fact (I don't recommend this) but I didn't even take my gear off the mount.  RASA 11 + essentials upside down at times.   I forgot about the cords but never turned more than 180.  I actually read the instructions after I was done. (common for me, I like to dig in) then see what I did wrong. 

SOUNDS nice... Will see if the RA hiccups tonight in a guiding test.  if all is good I'll do DEC tomorrow but RA was a primary concern as it would jump and killed every other sub.

Will see tonight.

 
 
 
On Wed, Jun 10, 2020 at 4:33 PM Marj Christen <marj@...> wrote:
Ron,
 
Now that our production staff has returned, the turnaround time for repairs is pretty quick. There is no standard cost for a “ tune up” since it depends on what is involved and if parts have to be replaced.
 
Try regreasing first and contact us again if you can’t resolve the issue.
 
Clear Skies,
 
Marj Christen
Astro-Physics, Inc
11250 Forest Hills Rd
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
 
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Wednesday, June 10, 2020 1:33 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist
 
I'm about to try to re-grease - I'll see if I can see something during inspection.  Is swapping the worm something easy I can do at home? 
I don't want to do anything complicated. I don't believe I've nicked a gear - I only use park3.  But it has come against the pier during a few 3-4 occasions? Would that do anything?

How much does it cost to send it in for a tune up?  HOW LONG would I be without it?  I'm near in Grand Rapids, MI.
I'll look for a clump of anything in the worm teeth.  If I send it in I don 't want it waiting for weeks/days. What is time frame? 
I ordered the grease, I'll see how that goes.
 
 
On Tue, Jun 9, 2020 at 7:51 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Forget backlash in RA. There is no such thing. RA always tracks so it never reverses. Backlash does not enter into tracking.
 
You may have damaged your worm teeth when you backed off the worm to do a fine balance. You may have forgotten to do it only in the Park3 position. If that's the case, the worm may have a nick in the teeth and it will show up as a repeating pattern once every 6.4 minutes.
 
Rolando
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Tue, Jun 9, 2020 3:30 pm
Subject: [ap-gto] Mach1 problem please assist
My mach1 is about 2.5 years old.  I was getting awesome guiding with a total rms error of .24 arc sec.  
Winter came and went and this spring it's been horrible.  like  1.4.   My image scale is about 1.69 so I lived with that for a while, but lately
the RA is  KICKING in almost a timely fashion.  One of these kicks makes double stars.  Around 1/2 my subs have to be deleted.
Nothing I have tried to far has fixed it.
I will include the log from a couple nights ago to show what I mean. 
I did a new calibration - then a guide assistant for a while... then set recommendations and let it guide a while.
You'll see   RA  kicking like a mule in a rather evenly timed fashion!?!  
I would so appreciate help with this.  Someone in PHD said make sure the mount software/HC doesn't have backlash on.  
I DO NOT USE or own a HC and I don't know of any BackLash setting in APCC pro.  I'm going nuts. 
 
 

 
--

 
--

 
--

 
--

 
--

 
--


--




Re: What is the diameter and thread on the Pasil.4 polar scope?

Len Fulham
 

Joe & Tom,

 I understand the concern, but provided there is a positive length location (registering to surface of Chuck) AND the cutting gear train is kept engaged (so nothing can move independently( = picking up the cut) AND an alignment mark is used to control rotational position, then very accurate and repeatable threading operations can proceed. In most circumstances the alignment mark does not need high precision  - an error of 0.5mm in rotation on a 40mm dia 1mm pitch thread corresponds to a error at the cutting tool of about 0.004mm (0.0002inch).
With quality equipment, e.g. my precision Pratt Burned chuck, which probably cost more than the whole mini lathe, this is achievable. But even cheap chucks which may have noticeable runout are usually quite repeatable. Even if the error is 5 times worse it still corresponds to only 0.02mm (0.001 inch). Just needs a bit of care to be clean and attentive to detail.

Otherwise, what should a beginner do - at some point it has to come out of the lathe and be mated to the mount - if it does not fit or is too 'snug' - throw it away and start again? or put it back in and take another little cut?

Tom, ideally you should learn to measure and specify threads properly, micrometer and three wires etc, but I have had commercial CNC cut products (thinking Celestron) which do not fit. Maybe before your first real part, you should make a 1/2" thread to fit a 1/2" nut as an exercise; get to know your machine.

I have done what I described above and it works.

Good luck,

Len.

PS Its never luck, care and attention to detail wins.


Re: help with AP900 guiding via ASIAir Pro

sgbonnell@...
 

Success!   That worked Ray..
PHD2 was guiding perfectly...I was getting total rms values averaging .3" and down to .25" at times over 3 hours last night.
Seeing was very good, with a light breeze at times, but I did not fine tune the mount balance and just used the starting values in PHD2 - I was so happy to see it running with very nice performance that I left it alone for the evening.    
Other than battling legions of mosquitos, it was a great night :-)

thanks again for your help...let me know if/when you sort out the issue with the latest release.
Steve


Re: Tripod for MC254 and Mach1

Elenillor
 

Len,

I tried anti-vibration pads years ago when I lived in Japan and observed from a 15th story balcony.  I found the pads made touch induced vibration worse (such as focusing) but somewhat reduce vibration coming thru the building.


Re: What is the diameter and thread on the Pasil.4 polar scope?

Joe Zeglinski
 

Hi Len,
 
    Interesting short cut with testing the part, but I would be concerned about “repeatability”.
Tom would have to not only mount the part,  back into the lathe chuck in two directions, he would also have to position the lathe cutter blade precisely in the original thread groove, and resume the lathe travel worm.
 
    Somehow, I feel that there are too many variables,  with a greater chance of the final threads ending up, cut too thin and thus loose fitting, if all isn’t repositioned  precisely, after a  part test-fit. It may be OK for a smooth bar operation, but threading resumption might be  less forgiving, no matter how careful one is.
 
Joe Z.


Re: What is the diameter and thread on the Pasil.4 polar scope?

Len Fulham
 

Tom,
"I might as well get some use on my new mini lathe. I'm thinking of delrin or brass."

For your adapter use brass or aluminium, Threads in delrin are harder to do than expected unless everything is set perfectly.

Are you experienced with lathe use & threading? if so read no more. Otherwise there is a simple way to remove and return your piece (e.g. to test fit) without losing thread registration.  This assumes there is a flat face or ring which registers against the face of the chuck or (less good) chuck jaws. Having progressed your thread to the point you wish to test it, back off/withdraw the cutting tool but leave everything engaged; then use a felt pen and make a line on the side of the workpiece onto a chuck jaw or face of the chuck. Now you can take it out of the chuck, play with it, test, then return it to the chuck in the same position and make further cuts as required. Accuracy is improved by tightening the chuck using each key position sequentially, and the same when you rechuck it. Don't rub the pen mark off!

You should be able to place the piece back in the chuck to the same depth and square (flat surface register) and the felt pen mark will let you have the thread back in alignment with minimal change. Make some test passes with the cutting tool backed out and progressively feed in until cutting is resumed.

It is easier to do this than just hope your part will fit ( if your metrology is first class, then no worries).

Not a machining forum so we shouldn't expand this too much.

Cheers,

Len.


Re: Tripod for MC254 and Mach1

Len Fulham
 

Your problem may be more than this can solve, but there are anti vibration pads which could help:
 
 
I have them for my Eagle and the AP portable pier, although I got them primarily to stop settling in sand etc
 
Cheers,
Len.


Re: Mach1 problem please assist

Roland Christen
 

One other thing that would be extremely helpful is if you ran the mount for about 2 worm cycles (about 15 minutes) with guiding effectively off so i can see what the worm is actually doing. Posting a guided graph hides a lot of stuff that makes it hard to do actual trouble shooting.

Rolando

-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 5:57 pm
Subject: Re: [ap-gto] Mach1 problem please assist

I'll post then then try groups interface.
I logged out my best guess on each incursion.  There are no seconds so I had to estimate.
This would be the later set of errors that kicked UPWARD

about  12:38.55 sec
about  12:45.20 sec
about  12:51.50 sec
about  12:58.10
about  01:04.40
about  01:11.05
about  01:17.25
about  01:23.50 sec
about  01:30.15 sec

looks like they're spaced 6 min  20 seconds about.   That's about a worm repeat? 

On Thu, Jun 18, 2020 at 6:50 PM Liam Plybon <liam@...> wrote:
Ron,
 
I believe you may have better luck by using an image hosting server and posting a link.
 
Groups is set to compress images automatically after complaints by users with slow or expensive internet who would have to download large images each time one was sent on the group. Especially here, where we all love sharing massive astro-images that can gobble up bandwidth.
 
Liam
 
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Thursday, June 18, 2020 17:40
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist
 
Yep - one continuous run. Not near the meridian.  I'm attaching pics in email. It asks original, best fit etc.  Upon appearing it's a small little blurry version.
would it make them more clear if I enter the post in the groups interface and not in email?   These are BIG ANC CLEAR AND SHARP when I attach them.

I
shape.JPG
dental in shape when zooming in.
 
On Thu, Jun 18, 2020 at 5:11 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
The graph shows 7 RA motions in the down direction, then a number of RA moves in the opposite direction. Is this over a period of time continuously? In other words, was this graph taken without interruption?
 
Roland
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 3:42 pm
Subject: Re: [ap-gto] Mach1 problem please assist
Capture is CLEAR and sharp. not sure what "GROUPS" does to images. I hate GROUPS.  Forums are better and allow you to retain/library of topics and Q&A, = (
I'll attach it again.  Is there a limit? size? restriction?    I'll attach at ORIGINAL SIZE

RA KICK.JPG
 
On Thu, Jun 18, 2020 at 4:37 PM Ron Kramer <ronkramer1957@...> wrote:
I don't own use a keypad.   I did try that SWAP OVER - but I then cleaned it and not sure where it ended up.  Since the last test clearly had the saime  KICKS. I can do ig again.  
What does that do?  I think it might track toward the other side of the groove?  I'll swap it over again and see if it helps since re-greasing.

NICELY - greasing lowered my RA RMA error almost 50%.  Here is my history.

Mount arrived. I guided around 1.0.  Always trying to tweak it - not sure why but months later I was guiding at  .24 RMS error (arc set). yeah - that's awesome.
MANY months of that... The RASA guided better than my long APO.  But late winter I swapped RASA V1 for a RASA V2 (heavier) and ever since my guiding was 1.5 average.  My image scale is 1.69 
lately - the RA kicks put me into  1.7-2.0.  I get double stars on every other sub. 
I re-greased the RA and last night afterwards I was 1.1max and usuall around .89 tot rms arc sec. (nice)  But the RA still kicks and makes for double stars.  My dec was still poor so I'll regrease dec next and check
my alignment. (it's fairly perminent in a dome, but I have a tripod leg/mount and it "can move".  I usually check alignment 1-2 times a year or when ever guiding quality decreases. 
I am not aware of any gear scraping - I always release it clean...  I have on 3-4 occasions allowed it to track into a leg and (stop). Not sure if that hurts anything. But seems to work fine next time.

I don't understand why the RA kick changed from lower to higher (E to W?) the mount orientation did not change. 
I'll swap the part positions over and try again tonight.  During regreasing/cleaning I saw nothing strange. No chunks or crud.  old Grease moved quickly,  freely. not at all gummy. 
I have some pics n video.
 
 
 
On Thu, Jun 18, 2020 at 3:39 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Hello Ron,
 
Howard won't be able to answer you at this time.
 
Can you do a test for me?
 
With keypad in Autostart NO, send the mount to Park1 and turn off power.
Loosen the clutches and move the mount to Park5 manually.
Turn power back on and press "Resume from Park5"
 
Now check to see if the RA anomaly persists. let me know the results and we can go from there.
 
By the way, your screen shot is so blurry I cannot make out any details on it.
 
Rolando
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 1:35 pm
Subject: Re: [ap-gto] Mach1 problem please assist
I re-greased the RA.  It was really relaxing and nothing to fear.  No springs jumped out at me or other crazy surprises. 
The first test last night showed my RA improved by almost 50% reduction in RA RMS error.  (I'm shocked).

On the bad side, I did not fix my RA KICK problem.  I did not see RA worm flaws except on the very end (3 turns) of the worm and I'm sure that is never in contact with the drive gear.
I have emailed Howard... but wondered if it helps determine the problem from last night's guide log.  I was surprised to see it FLIPPED the RA kick.  (no meridian flip took place) why would it flip? 

RA KICK.JPG
 
On Wed, Jun 17, 2020 at 4:21 PM Ron Kramer via groups.io <ronkramer1957=gmail.com@groups.io> wrote:
Kit arrived late last night. (UPS error)
Today it was hot in the dome so I just did the RA worm and drive gear. And the side gears)
I hope to test tonight and see if it solves my RA kicking problem. 

I inspected the worm and was in fine shape - EXCEPT I had some very rough area which I don't think matters. It was way over on the very edges of the worm... like the last 2-3 turns were rough. I don't believe this are ever used? 

I greased the entire worm even though it said just the center is all that's needed. Figured it would help ward off corrosion.   The process wasn't scary once the RA box was removed. In fact (I don't recommend this) but I didn't even take my gear off the mount.  RASA 11 + essentials upside down at times.   I forgot about the cords but never turned more than 180.  I actually read the instructions after I was done. (common for me, I like to dig in) then see what I did wrong. 

SOUNDS nice... Will see if the RA hiccups tonight in a guiding test.  if all is good I'll do DEC tomorrow but RA was a primary concern as it would jump and killed every other sub.

Will see tonight.

 
 
 
On Wed, Jun 10, 2020 at 4:33 PM Marj Christen <marj@...> wrote:
Ron,
 
Now that our production staff has returned, the turnaround time for repairs is pretty quick. There is no standard cost for a “ tune up” since it depends on what is involved and if parts have to be replaced.
 
Try regreasing first and contact us again if you can’t resolve the issue.
 
Clear Skies,
 
Marj Christen
Astro-Physics, Inc
11250 Forest Hills Rd
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
 
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Wednesday, June 10, 2020 1:33 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist
 
I'm about to try to re-grease - I'll see if I can see something during inspection.  Is swapping the worm something easy I can do at home? 
I don't want to do anything complicated. I don't believe I've nicked a gear - I only use park3.  But it has come against the pier during a few 3-4 occasions? Would that do anything?

How much does it cost to send it in for a tune up?  HOW LONG would I be without it?  I'm near in Grand Rapids, MI.
I'll look for a clump of anything in the worm teeth.  If I send it in I don 't want it waiting for weeks/days. What is time frame? 
I ordered the grease, I'll see how that goes.
 
 
On Tue, Jun 9, 2020 at 7:51 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Forget backlash in RA. There is no such thing. RA always tracks so it never reverses. Backlash does not enter into tracking.
 
You may have damaged your worm teeth when you backed off the worm to do a fine balance. You may have forgotten to do it only in the Park3 position. If that's the case, the worm may have a nick in the teeth and it will show up as a repeating pattern once every 6.4 minutes.
 
Rolando
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Tue, Jun 9, 2020 3:30 pm
Subject: [ap-gto] Mach1 problem please assist
My mach1 is about 2.5 years old.  I was getting awesome guiding with a total rms error of .24 arc sec.  
Winter came and went and this spring it's been horrible.  like  1.4.   My image scale is about 1.69 so I lived with that for a while, but lately
the RA is  KICKING in almost a timely fashion.  One of these kicks makes double stars.  Around 1/2 my subs have to be deleted.
Nothing I have tried to far has fixed it.
I will include the log from a couple nights ago to show what I mean. 
I did a new calibration - then a guide assistant for a while... then set recommendations and let it guide a while.
You'll see   RA  kicking like a mule in a rather evenly timed fashion!?!  
I would so appreciate help with this.  Someone in PHD said make sure the mount software/HC doesn't have backlash on.  
I DO NOT USE or own a HC and I don't know of any BackLash setting in APCC pro.  I'm going nuts. 
 
 

 
--

 
--

 
--

 
--

 
--

 
--


--


Re: Mach1 problem please assist

Worsel
 

Ron uploaded the GuideLog to PHD2 forum.  While he does have dithering active, the frequency is unrelated to the 'kicks.'  As he notes, it is 6.4m +/- 1s every time within the precision of PHD2.

If you use PHD@ Log View and exclude the kicks and dithers, RMS is 0.96"...  .6" RA, .75" Dec.

Bryan


Re: Mach1 problem please assist

Roland Christen
 

Ok, that looks like a worm period for each.

Rolando



-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 5:57 pm
Subject: Re: [ap-gto] Mach1 problem please assist

I'll post then then try groups interface.
I logged out my best guess on each incursion.  There are no seconds so I had to estimate.
This would be the later set of errors that kicked UPWARD

about  12:38.55 sec
about  12:45.20 sec
about  12:51.50 sec
about  12:58.10
about  01:04.40
about  01:11.05
about  01:17.25
about  01:23.50 sec
about  01:30.15 sec

looks like they're spaced 6 min  20 seconds about.   That's about a worm repeat? 

On Thu, Jun 18, 2020 at 6:50 PM Liam Plybon <liam@...> wrote:
Ron,
 
I believe you may have better luck by using an image hosting server and posting a link.
 
Groups is set to compress images automatically after complaints by users with slow or expensive internet who would have to download large images each time one was sent on the group. Especially here, where we all love sharing massive astro-images that can gobble up bandwidth.
 
Liam
 
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Thursday, June 18, 2020 17:40
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist
 
Yep - one continuous run. Not near the meridian.  I'm attaching pics in email. It asks original, best fit etc.  Upon appearing it's a small little blurry version.
would it make them more clear if I enter the post in the groups interface and not in email?   These are BIG ANC CLEAR AND SHARP when I attach them.

I
shape.JPG
dental in shape when zooming in.
 
On Thu, Jun 18, 2020 at 5:11 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
The graph shows 7 RA motions in the down direction, then a number of RA moves in the opposite direction. Is this over a period of time continuously? In other words, was this graph taken without interruption?
 
Roland
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 3:42 pm
Subject: Re: [ap-gto] Mach1 problem please assist
Capture is CLEAR and sharp. not sure what "GROUPS" does to images. I hate GROUPS.  Forums are better and allow you to retain/library of topics and Q&A, = (
I'll attach it again.  Is there a limit? size? restriction?    I'll attach at ORIGINAL SIZE

RA KICK.JPG
 
On Thu, Jun 18, 2020 at 4:37 PM Ron Kramer <ronkramer1957@...> wrote:
I don't own use a keypad.   I did try that SWAP OVER - but I then cleaned it and not sure where it ended up.  Since the last test clearly had the saime  KICKS. I can do ig again.  
What does that do?  I think it might track toward the other side of the groove?  I'll swap it over again and see if it helps since re-greasing.

NICELY - greasing lowered my RA RMA error almost 50%.  Here is my history.

Mount arrived. I guided around 1.0.  Always trying to tweak it - not sure why but months later I was guiding at  .24 RMS error (arc set). yeah - that's awesome.
MANY months of that... The RASA guided better than my long APO.  But late winter I swapped RASA V1 for a RASA V2 (heavier) and ever since my guiding was 1.5 average.  My image scale is 1.69 
lately - the RA kicks put me into  1.7-2.0.  I get double stars on every other sub. 
I re-greased the RA and last night afterwards I was 1.1max and usuall around .89 tot rms arc sec. (nice)  But the RA still kicks and makes for double stars.  My dec was still poor so I'll regrease dec next and check
my alignment. (it's fairly perminent in a dome, but I have a tripod leg/mount and it "can move".  I usually check alignment 1-2 times a year or when ever guiding quality decreases. 
I am not aware of any gear scraping - I always release it clean...  I have on 3-4 occasions allowed it to track into a leg and (stop). Not sure if that hurts anything. But seems to work fine next time.

I don't understand why the RA kick changed from lower to higher (E to W?) the mount orientation did not change. 
I'll swap the part positions over and try again tonight.  During regreasing/cleaning I saw nothing strange. No chunks or crud.  old Grease moved quickly,  freely. not at all gummy. 
I have some pics n video.
 
 
 
On Thu, Jun 18, 2020 at 3:39 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Hello Ron,
 
Howard won't be able to answer you at this time.
 
Can you do a test for me?
 
With keypad in Autostart NO, send the mount to Park1 and turn off power.
Loosen the clutches and move the mount to Park5 manually.
Turn power back on and press "Resume from Park5"
 
Now check to see if the RA anomaly persists. let me know the results and we can go from there.
 
By the way, your screen shot is so blurry I cannot make out any details on it.
 
Rolando
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 1:35 pm
Subject: Re: [ap-gto] Mach1 problem please assist
I re-greased the RA.  It was really relaxing and nothing to fear.  No springs jumped out at me or other crazy surprises. 
The first test last night showed my RA improved by almost 50% reduction in RA RMS error.  (I'm shocked).

On the bad side, I did not fix my RA KICK problem.  I did not see RA worm flaws except on the very end (3 turns) of the worm and I'm sure that is never in contact with the drive gear.
I have emailed Howard... but wondered if it helps determine the problem from last night's guide log.  I was surprised to see it FLIPPED the RA kick.  (no meridian flip took place) why would it flip? 

RA KICK.JPG
 
On Wed, Jun 17, 2020 at 4:21 PM Ron Kramer via groups.io <ronkramer1957=gmail.com@groups.io> wrote:
Kit arrived late last night. (UPS error)
Today it was hot in the dome so I just did the RA worm and drive gear. And the side gears)
I hope to test tonight and see if it solves my RA kicking problem. 

I inspected the worm and was in fine shape - EXCEPT I had some very rough area which I don't think matters. It was way over on the very edges of the worm... like the last 2-3 turns were rough. I don't believe this are ever used? 

I greased the entire worm even though it said just the center is all that's needed. Figured it would help ward off corrosion.   The process wasn't scary once the RA box was removed. In fact (I don't recommend this) but I didn't even take my gear off the mount.  RASA 11 + essentials upside down at times.   I forgot about the cords but never turned more than 180.  I actually read the instructions after I was done. (common for me, I like to dig in) then see what I did wrong. 

SOUNDS nice... Will see if the RA hiccups tonight in a guiding test.  if all is good I'll do DEC tomorrow but RA was a primary concern as it would jump and killed every other sub.

Will see tonight.

 
 
 
On Wed, Jun 10, 2020 at 4:33 PM Marj Christen <marj@...> wrote:
Ron,
 
Now that our production staff has returned, the turnaround time for repairs is pretty quick. There is no standard cost for a “ tune up” since it depends on what is involved and if parts have to be replaced.
 
Try regreasing first and contact us again if you can’t resolve the issue.
 
Clear Skies,
 
Marj Christen
Astro-Physics, Inc
11250 Forest Hills Rd
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
 
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Wednesday, June 10, 2020 1:33 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist
 
I'm about to try to re-grease - I'll see if I can see something during inspection.  Is swapping the worm something easy I can do at home? 
I don't want to do anything complicated. I don't believe I've nicked a gear - I only use park3.  But it has come against the pier during a few 3-4 occasions? Would that do anything?

How much does it cost to send it in for a tune up?  HOW LONG would I be without it?  I'm near in Grand Rapids, MI.
I'll look for a clump of anything in the worm teeth.  If I send it in I don 't want it waiting for weeks/days. What is time frame? 
I ordered the grease, I'll see how that goes.
 
 
On Tue, Jun 9, 2020 at 7:51 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Forget backlash in RA. There is no such thing. RA always tracks so it never reverses. Backlash does not enter into tracking.
 
You may have damaged your worm teeth when you backed off the worm to do a fine balance. You may have forgotten to do it only in the Park3 position. If that's the case, the worm may have a nick in the teeth and it will show up as a repeating pattern once every 6.4 minutes.
 
Rolando
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Tue, Jun 9, 2020 3:30 pm
Subject: [ap-gto] Mach1 problem please assist
My mach1 is about 2.5 years old.  I was getting awesome guiding with a total rms error of .24 arc sec.  
Winter came and went and this spring it's been horrible.  like  1.4.   My image scale is about 1.69 so I lived with that for a while, but lately
the RA is  KICKING in almost a timely fashion.  One of these kicks makes double stars.  Around 1/2 my subs have to be deleted.
Nothing I have tried to far has fixed it.
I will include the log from a couple nights ago to show what I mean. 
I did a new calibration - then a guide assistant for a while... then set recommendations and let it guide a while.
You'll see   RA  kicking like a mule in a rather evenly timed fashion!?!  
I would so appreciate help with this.  Someone in PHD said make sure the mount software/HC doesn't have backlash on.  
I DO NOT USE or own a HC and I don't know of any BackLash setting in APCC pro.  I'm going nuts. 
 
 

 
--

 
--

 
--

 
--

 
--

 
--


--


Re: Mach1 problem please assist

Roland Christen
 

That's nice but what is the time period between each pulse?

Rolando



-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 5:40 pm
Subject: Re: [ap-gto] Mach1 problem please assist

Yep - one continuous run. Not near the meridian.  I'm attaching pics in email. It asks original, best fit etc.  Upon appearing it's a small little blurry version.
would it make them more clear if I enter the post in the groups interface and not in email?   These are BIG ANC CLEAR AND SHARP when I attach them.

I
shape.JPG
dental in shape when zooming in.


On Thu, Jun 18, 2020 at 5:11 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
The graph shows 7 RA motions in the down direction, then a number of RA moves in the opposite direction. Is this over a period of time continuously? In other words, was this graph taken without interruption?

Roland



-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 3:42 pm
Subject: Re: [ap-gto] Mach1 problem please assist

Capture is CLEAR and sharp. not sure what "GROUPS" does to images. I hate GROUPS.  Forums are better and allow you to retain/library of topics and Q&A, = (
I'll attach it again.  Is there a limit? size? restriction?    I'll attach at ORIGINAL SIZE


RA KICK.JPG

On Thu, Jun 18, 2020 at 4:37 PM Ron Kramer <ronkramer1957@...> wrote:
I don't own use a keypad.   I did try that SWAP OVER - but I then cleaned it and not sure where it ended up.  Since the last test clearly had the saime  KICKS. I can do ig again.  
What does that do?  I think it might track toward the other side of the groove?  I'll swap it over again and see if it helps since re-greasing.

NICELY - greasing lowered my RA RMA error almost 50%.  Here is my history.

Mount arrived. I guided around 1.0.  Always trying to tweak it - not sure why but months later I was guiding at  .24 RMS error (arc set). yeah - that's awesome.
MANY months of that... The RASA guided better than my long APO.  But late winter I swapped RASA V1 for a RASA V2 (heavier) and ever since my guiding was 1.5 average.  My image scale is 1.69 
lately - the RA kicks put me into  1.7-2.0.  I get double stars on every other sub. 
I re-greased the RA and last night afterwards I was 1.1max and usuall around .89 tot rms arc sec. (nice)  But the RA still kicks and makes for double stars.  My dec was still poor so I'll regrease dec next and check
my alignment. (it's fairly perminent in a dome, but I have a tripod leg/mount and it "can move".  I usually check alignment 1-2 times a year or when ever guiding quality decreases. 
I am not aware of any gear scraping - I always release it clean...  I have on 3-4 occasions allowed it to track into a leg and (stop). Not sure if that hurts anything. But seems to work fine next time.

I don't understand why the RA kick changed from lower to higher (E to W?) the mount orientation did not change. 
I'll swap the part positions over and try again tonight.  During regreasing/cleaning I saw nothing strange. No chunks or crud.  old Grease moved quickly,  freely. not at all gummy. 
I have some pics n video.



On Thu, Jun 18, 2020 at 3:39 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Hello Ron,

Howard won't be able to answer you at this time.

Can you do a test for me?

With keypad in Autostart NO, send the mount to Park1 and turn off power.
Loosen the clutches and move the mount to Park5 manually.
Turn power back on and press "Resume from Park5"

Now check to see if the RA anomaly persists. let me know the results and we can go from there.

By the way, your screen shot is so blurry I cannot make out any details on it.

Rolando



-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 1:35 pm
Subject: Re: [ap-gto] Mach1 problem please assist

I re-greased the RA.  It was really relaxing and nothing to fear.  No springs jumped out at me or other crazy surprises. 
The first test last night showed my RA improved by almost 50% reduction in RA RMS error.  (I'm shocked).

On the bad side, I did not fix my RA KICK problem.  I did not see RA worm flaws except on the very end (3 turns) of the worm and I'm sure that is never in contact with the drive gear.
I have emailed Howard... but wondered if it helps determine the problem from last night's guide log.  I was surprised to see it FLIPPED the RA kick.  (no meridian flip took place) why would it flip? 


RA KICK.JPG

On Wed, Jun 17, 2020 at 4:21 PM Ron Kramer via groups.io <ronkramer1957=gmail.com@groups.io> wrote:
Kit arrived late last night. (UPS error)
Today it was hot in the dome so I just did the RA worm and drive gear. And the side gears)
I hope to test tonight and see if it solves my RA kicking problem. 

I inspected the worm and was in fine shape - EXCEPT I had some very rough area which I don't think matters. It was way over on the very edges of the worm... like the last 2-3 turns were rough. I don't believe this are ever used? 

I greased the entire worm even though it said just the center is all that's needed. Figured it would help ward off corrosion.   The process wasn't scary once the RA box was removed. In fact (I don't recommend this) but I didn't even take my gear off the mount.  RASA 11 + essentials upside down at times.   I forgot about the cords but never turned more than 180.  I actually read the instructions after I was done. (common for me, I like to dig in) then see what I did wrong. 

SOUNDS nice... Will see if the RA hiccups tonight in a guiding test.  if all is good I'll do DEC tomorrow but RA was a primary concern as it would jump and killed every other sub.

Will see tonight.





On Wed, Jun 10, 2020 at 4:33 PM Marj Christen <marj@...> wrote:
Ron,
 
Now that our production staff has returned, the turnaround time for repairs is pretty quick. There is no standard cost for a “ tune up” since it depends on what is involved and if parts have to be replaced.
 
Try regreasing first and contact us again if you can’t resolve the issue.
 
Clear Skies,
 
Marj Christen
Astro-Physics, Inc
11250 Forest Hills Rd
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
 
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Wednesday, June 10, 2020 1:33 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist
 
I'm about to try to re-grease - I'll see if I can see something during inspection.  Is swapping the worm something easy I can do at home? 
I don't want to do anything complicated. I don't believe I've nicked a gear - I only use park3.  But it has come against the pier during a few 3-4 occasions? Would that do anything?

How much does it cost to send it in for a tune up?  HOW LONG would I be without it?  I'm near in Grand Rapids, MI.
I'll look for a clump of anything in the worm teeth.  If I send it in I don 't want it waiting for weeks/days. What is time frame? 
I ordered the grease, I'll see how that goes.
 
 
On Tue, Jun 9, 2020 at 7:51 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Forget backlash in RA. There is no such thing. RA always tracks so it never reverses. Backlash does not enter into tracking.
 
You may have damaged your worm teeth when you backed off the worm to do a fine balance. You may have forgotten to do it only in the Park3 position. If that's the case, the worm may have a nick in the teeth and it will show up as a repeating pattern once every 6.4 minutes.
 
Rolando
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Tue, Jun 9, 2020 3:30 pm
Subject: [ap-gto] Mach1 problem please assist
My mach1 is about 2.5 years old.  I was getting awesome guiding with a total rms error of .24 arc sec.  
Winter came and went and this spring it's been horrible.  like  1.4.   My image scale is about 1.69 so I lived with that for a while, but lately
the RA is  KICKING in almost a timely fashion.  One of these kicks makes double stars.  Around 1/2 my subs have to be deleted.
Nothing I have tried to far has fixed it.
I will include the log from a couple nights ago to show what I mean. 
I did a new calibration - then a guide assistant for a while... then set recommendations and let it guide a while.
You'll see   RA  kicking like a mule in a rather evenly timed fashion!?!  
I would so appreciate help with this.  Someone in PHD said make sure the mount software/HC doesn't have backlash on.  
I DO NOT USE or own a HC and I don't know of any BackLash setting in APCC pro.  I'm going nuts. 
 
 

 
--


--


--


--


--


--


Re: Mach1 problem please assist

Ron Kramer
 

I'll post then then try groups interface.
I logged out my best guess on each incursion.  There are no seconds so I had to estimate.
This would be the later set of errors that kicked UPWARD

about  12:38.55 sec
about  12:45.20 sec
about  12:51.50 sec
about  12:58.10
about  01:04.40
about  01:11.05
about  01:17.25
about  01:23.50 sec
about  01:30.15 sec

looks like they're spaced 6 min  20 seconds about.   That's about a worm repeat? 


On Thu, Jun 18, 2020 at 6:50 PM Liam Plybon <liam@...> wrote:

Ron,

 

I believe you may have better luck by using an image hosting server and posting a link.

 

Groups is set to compress images automatically after complaints by users with slow or expensive internet who would have to download large images each time one was sent on the group. Especially here, where we all love sharing massive astro-images that can gobble up bandwidth.

 

Liam

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Thursday, June 18, 2020 17:40
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist

 

Yep - one continuous run. Not near the meridian.  I'm attaching pics in email. It asks original, best fit etc.  Upon appearing it's a small little blurry version.
would it make them more clear if I enter the post in the groups interface and not in email?   These are BIG ANC CLEAR AND SHARP when I attach them.

I

shape.JPG

dental in shape when zooming in.

 

On Thu, Jun 18, 2020 at 5:11 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:

The graph shows 7 RA motions in the down direction, then a number of RA moves in the opposite direction. Is this over a period of time continuously? In other words, was this graph taken without interruption?

 

Roland

 

 

 

-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 3:42 pm
Subject: Re: [ap-gto] Mach1 problem please assist

Capture is CLEAR and sharp. not sure what "GROUPS" does to images. I hate GROUPS.  Forums are better and allow you to retain/library of topics and Q&A, = (
I'll attach it again.  Is there a limit? size? restriction?    I'll attach at ORIGINAL SIZE

RA KICK.JPG

 

On Thu, Jun 18, 2020 at 4:37 PM Ron Kramer <ronkramer1957@...> wrote:

I don't own use a keypad.   I did try that SWAP OVER - but I then cleaned it and not sure where it ended up.  Since the last test clearly had the saime  KICKS. I can do ig again.  
What does that do?  I think it might track toward the other side of the groove?  I'll swap it over again and see if it helps since re-greasing.

NICELY - greasing lowered my RA RMA error almost 50%.  Here is my history.

Mount arrived. I guided around 1.0.  Always trying to tweak it - not sure why but months later I was guiding at  .24 RMS error (arc set). yeah - that's awesome.
MANY months of that... The RASA guided better than my long APO.  But late winter I swapped RASA V1 for a RASA V2 (heavier) and ever since my guiding was 1.5 average.  My image scale is 1.69 
lately - the RA kicks put me into  1.7-2.0.  I get double stars on every other sub. 
I re-greased the RA and last night afterwards I was 1.1max and usuall around .89 tot rms arc sec. (nice)  But the RA still kicks and makes for double stars.  My dec was still poor so I'll regrease dec next and check
my alignment. (it's fairly perminent in a dome, but I have a tripod leg/mount and it "can move".  I usually check alignment 1-2 times a year or when ever guiding quality decreases. 

I am not aware of any gear scraping - I always release it clean...  I have on 3-4 occasions allowed it to track into a leg and (stop). Not sure if that hurts anything. But seems to work fine next time.

I don't understand why the RA kick changed from lower to higher (E to W?) the mount orientation did not change. 
I'll swap the part positions over and try again tonight.  During regreasing/cleaning I saw nothing strange. No chunks or crud.  old Grease moved quickly,  freely. not at all gummy. 
I have some pics n video.

 

 

 

On Thu, Jun 18, 2020 at 3:39 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:

Hello Ron,

 

Howard won't be able to answer you at this time.

 

Can you do a test for me?

 

With keypad in Autostart NO, send the mount to Park1 and turn off power.

Loosen the clutches and move the mount to Park5 manually.

Turn power back on and press "Resume from Park5"

 

Now check to see if the RA anomaly persists. let me know the results and we can go from there.

 

By the way, your screen shot is so blurry I cannot make out any details on it.

 

Rolando

 

 

 

-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 1:35 pm
Subject: Re: [ap-gto] Mach1 problem please assist

I re-greased the RA.  It was really relaxing and nothing to fear.  No springs jumped out at me or other crazy surprises. 
The first test last night showed my RA improved by almost 50% reduction in RA RMS error.  (I'm shocked).

On the bad side, I did not fix my RA KICK problem.  I did not see RA worm flaws except on the very end (3 turns) of the worm and I'm sure that is never in contact with the drive gear.
I have emailed Howard... but wondered if it helps determine the problem from last night's guide log.  I was surprised to see it FLIPPED the RA kick.  (no meridian flip took place) why would it flip? 

RA KICK.JPG

 

On Wed, Jun 17, 2020 at 4:21 PM Ron Kramer via groups.io <ronkramer1957=gmail.com@groups.io> wrote:

Kit arrived late last night. (UPS error)
Today it was hot in the dome so I just did the RA worm and drive gear. And the side gears)
I hope to test tonight and see if it solves my RA kicking problem. 

I inspected the worm and was in fine shape - EXCEPT I had some very rough area which I don't think matters. It was way over on the very edges of the worm... like the last 2-3 turns were rough. I don't believe this are ever used? 

I greased the entire worm even though it said just the center is all that's needed. Figured it would help ward off corrosion.   The process wasn't scary once the RA box was removed. In fact (I don't recommend this) but I didn't even take my gear off the mount.  RASA 11 + essentials upside down at times.   I forgot about the cords but never turned more than 180.  I actually read the instructions after I was done. (common for me, I like to dig in) then see what I did wrong. 

SOUNDS nice... Will see if the RA hiccups tonight in a guiding test.  if all is good I'll do DEC tomorrow but RA was a primary concern as it would jump and killed every other sub.

Will see tonight.

 

 

 

On Wed, Jun 10, 2020 at 4:33 PM Marj Christen <marj@...> wrote:

Ron,

 

Now that our production staff has returned, the turnaround time for repairs is pretty quick. There is no standard cost for a “ tune up” since it depends on what is involved and if parts have to be replaced.

 

Try regreasing first and contact us again if you can’t resolve the issue.

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Wednesday, June 10, 2020 1:33 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist

 

I'm about to try to re-grease - I'll see if I can see something during inspection.  Is swapping the worm something easy I can do at home? 
I don't want to do anything complicated. I don't believe I've nicked a gear - I only use park3.  But it has come against the pier during a few 3-4 occasions? Would that do anything?

How much does it cost to send it in for a tune up?  HOW LONG would I be without it?  I'm near in Grand Rapids, MI.
I'll look for a clump of anything in the worm teeth.  If I send it in I don 't want it waiting for weeks/days. What is time frame? 

I ordered the grease, I'll see how that goes.

 

 

On Tue, Jun 9, 2020 at 7:51 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:

Forget backlash in RA. There is no such thing. RA always tracks so it never reverses. Backlash does not enter into tracking.

 

You may have damaged your worm teeth when you backed off the worm to do a fine balance. You may have forgotten to do it only in the Park3 position. If that's the case, the worm may have a nick in the teeth and it will show up as a repeating pattern once every 6.4 minutes.

 

Rolando

 

 

 

-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Tue, Jun 9, 2020 3:30 pm
Subject: [ap-gto] Mach1 problem please assist

My mach1 is about 2.5 years old.  I was getting awesome guiding with a total rms error of .24 arc sec.  

Winter came and went and this spring it's been horrible.  like  1.4.   My image scale is about 1.69 so I lived with that for a while, but lately

the RA is  KICKING in almost a timely fashion.  One of these kicks makes double stars.  Around 1/2 my subs have to be deleted.

Nothing I have tried to far has fixed it.

I will include the log from a couple nights ago to show what I mean. 

I did a new calibration - then a guide assistant for a while... then set recommendations and let it guide a while.
You'll see   RA  kicking like a mule in a rather evenly timed fashion!?!  

I would so appreciate help with this.  Someone in PHD said make sure the mount software/HC doesn't have backlash on.  

I DO NOT USE or own a HC and I don't know of any BackLash setting in APCC pro.  I'm going nuts. 

 

 


 

--


 

--


 

--


 

--


 

--


 

--




Re: Mach1 problem please assist

 

Ron,

 

I believe you may have better luck by using an image hosting server and posting a link.

 

Groups is set to compress images automatically after complaints by users with slow or expensive internet who would have to download large images each time one was sent on the group. Especially here, where we all love sharing massive astro-images that can gobble up bandwidth.

 

Liam

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Thursday, June 18, 2020 17:40
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist

 

Yep - one continuous run. Not near the meridian.  I'm attaching pics in email. It asks original, best fit etc.  Upon appearing it's a small little blurry version.
would it make them more clear if I enter the post in the groups interface and not in email?   These are BIG ANC CLEAR AND SHARP when I attach them.

I

shape.JPG

dental in shape when zooming in.

 

On Thu, Jun 18, 2020 at 5:11 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:

The graph shows 7 RA motions in the down direction, then a number of RA moves in the opposite direction. Is this over a period of time continuously? In other words, was this graph taken without interruption?

 

Roland

 

 

 

-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 3:42 pm
Subject: Re: [ap-gto] Mach1 problem please assist

Capture is CLEAR and sharp. not sure what "GROUPS" does to images. I hate GROUPS.  Forums are better and allow you to retain/library of topics and Q&A, = (
I'll attach it again.  Is there a limit? size? restriction?    I'll attach at ORIGINAL SIZE

RA KICK.JPG

 

On Thu, Jun 18, 2020 at 4:37 PM Ron Kramer <ronkramer1957@...> wrote:

I don't own use a keypad.   I did try that SWAP OVER - but I then cleaned it and not sure where it ended up.  Since the last test clearly had the saime  KICKS. I can do ig again.  
What does that do?  I think it might track toward the other side of the groove?  I'll swap it over again and see if it helps since re-greasing.

NICELY - greasing lowered my RA RMA error almost 50%.  Here is my history.

Mount arrived. I guided around 1.0.  Always trying to tweak it - not sure why but months later I was guiding at  .24 RMS error (arc set). yeah - that's awesome.
MANY months of that... The RASA guided better than my long APO.  But late winter I swapped RASA V1 for a RASA V2 (heavier) and ever since my guiding was 1.5 average.  My image scale is 1.69 
lately - the RA kicks put me into  1.7-2.0.  I get double stars on every other sub. 
I re-greased the RA and last night afterwards I was 1.1max and usuall around .89 tot rms arc sec. (nice)  But the RA still kicks and makes for double stars.  My dec was still poor so I'll regrease dec next and check
my alignment. (it's fairly perminent in a dome, but I have a tripod leg/mount and it "can move".  I usually check alignment 1-2 times a year or when ever guiding quality decreases. 

I am not aware of any gear scraping - I always release it clean...  I have on 3-4 occasions allowed it to track into a leg and (stop). Not sure if that hurts anything. But seems to work fine next time.

I don't understand why the RA kick changed from lower to higher (E to W?) the mount orientation did not change. 
I'll swap the part positions over and try again tonight.  During regreasing/cleaning I saw nothing strange. No chunks or crud.  old Grease moved quickly,  freely. not at all gummy. 
I have some pics n video.

 

 

 

On Thu, Jun 18, 2020 at 3:39 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:

Hello Ron,

 

Howard won't be able to answer you at this time.

 

Can you do a test for me?

 

With keypad in Autostart NO, send the mount to Park1 and turn off power.

Loosen the clutches and move the mount to Park5 manually.

Turn power back on and press "Resume from Park5"

 

Now check to see if the RA anomaly persists. let me know the results and we can go from there.

 

By the way, your screen shot is so blurry I cannot make out any details on it.

 

Rolando

 

 

 

-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 1:35 pm
Subject: Re: [ap-gto] Mach1 problem please assist

I re-greased the RA.  It was really relaxing and nothing to fear.  No springs jumped out at me or other crazy surprises. 
The first test last night showed my RA improved by almost 50% reduction in RA RMS error.  (I'm shocked).

On the bad side, I did not fix my RA KICK problem.  I did not see RA worm flaws except on the very end (3 turns) of the worm and I'm sure that is never in contact with the drive gear.
I have emailed Howard... but wondered if it helps determine the problem from last night's guide log.  I was surprised to see it FLIPPED the RA kick.  (no meridian flip took place) why would it flip? 

RA KICK.JPG

 

On Wed, Jun 17, 2020 at 4:21 PM Ron Kramer via groups.io <ronkramer1957=gmail.com@groups.io> wrote:

Kit arrived late last night. (UPS error)
Today it was hot in the dome so I just did the RA worm and drive gear. And the side gears)
I hope to test tonight and see if it solves my RA kicking problem. 

I inspected the worm and was in fine shape - EXCEPT I had some very rough area which I don't think matters. It was way over on the very edges of the worm... like the last 2-3 turns were rough. I don't believe this are ever used? 

I greased the entire worm even though it said just the center is all that's needed. Figured it would help ward off corrosion.   The process wasn't scary once the RA box was removed. In fact (I don't recommend this) but I didn't even take my gear off the mount.  RASA 11 + essentials upside down at times.   I forgot about the cords but never turned more than 180.  I actually read the instructions after I was done. (common for me, I like to dig in) then see what I did wrong. 

SOUNDS nice... Will see if the RA hiccups tonight in a guiding test.  if all is good I'll do DEC tomorrow but RA was a primary concern as it would jump and killed every other sub.

Will see tonight.

 

 

 

On Wed, Jun 10, 2020 at 4:33 PM Marj Christen <marj@...> wrote:

Ron,

 

Now that our production staff has returned, the turnaround time for repairs is pretty quick. There is no standard cost for a “ tune up” since it depends on what is involved and if parts have to be replaced.

 

Try regreasing first and contact us again if you can’t resolve the issue.

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Wednesday, June 10, 2020 1:33 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist

 

I'm about to try to re-grease - I'll see if I can see something during inspection.  Is swapping the worm something easy I can do at home? 
I don't want to do anything complicated. I don't believe I've nicked a gear - I only use park3.  But it has come against the pier during a few 3-4 occasions? Would that do anything?

How much does it cost to send it in for a tune up?  HOW LONG would I be without it?  I'm near in Grand Rapids, MI.
I'll look for a clump of anything in the worm teeth.  If I send it in I don 't want it waiting for weeks/days. What is time frame? 

I ordered the grease, I'll see how that goes.

 

 

On Tue, Jun 9, 2020 at 7:51 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:

Forget backlash in RA. There is no such thing. RA always tracks so it never reverses. Backlash does not enter into tracking.

 

You may have damaged your worm teeth when you backed off the worm to do a fine balance. You may have forgotten to do it only in the Park3 position. If that's the case, the worm may have a nick in the teeth and it will show up as a repeating pattern once every 6.4 minutes.

 

Rolando

 

 

 

-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Tue, Jun 9, 2020 3:30 pm
Subject: [ap-gto] Mach1 problem please assist

My mach1 is about 2.5 years old.  I was getting awesome guiding with a total rms error of .24 arc sec.  

Winter came and went and this spring it's been horrible.  like  1.4.   My image scale is about 1.69 so I lived with that for a while, but lately

the RA is  KICKING in almost a timely fashion.  One of these kicks makes double stars.  Around 1/2 my subs have to be deleted.

Nothing I have tried to far has fixed it.

I will include the log from a couple nights ago to show what I mean. 

I did a new calibration - then a guide assistant for a while... then set recommendations and let it guide a while.
You'll see   RA  kicking like a mule in a rather evenly timed fashion!?!  

I would so appreciate help with this.  Someone in PHD said make sure the mount software/HC doesn't have backlash on.  

I DO NOT USE or own a HC and I don't know of any BackLash setting in APCC pro.  I'm going nuts. 

 

 


 

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--


 

--


 

--


Re: APCC Pro with Mach2?

Dominique Durand
 
Edited

Hi Rolando,

It rolls for me quite like that. On June 14 I threw a photo spoiled by the clouds and I did not realize it until after. Without guidance no worries for the following takes ... and tonight it turns without problems either with the mach2 and APCC -Pro ... only operations to do because I do not have the THUM probe, adjust the temperature on APCC. I would like to go directly to a temperature + pressure probe.

Dominique


Re: Mach1 problem please assist

Ron Kramer
 

Yep - one continuous run. Not near the meridian.  I'm attaching pics in email. It asks original, best fit etc.  Upon appearing it's a small little blurry version.
would it make them more clear if I enter the post in the groups interface and not in email?   These are BIG ANC CLEAR AND SHARP when I attach them.

I
shape.JPG
dental in shape when zooming in.


On Thu, Jun 18, 2020 at 5:11 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
The graph shows 7 RA motions in the down direction, then a number of RA moves in the opposite direction. Is this over a period of time continuously? In other words, was this graph taken without interruption?

Roland



-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 3:42 pm
Subject: Re: [ap-gto] Mach1 problem please assist

Capture is CLEAR and sharp. not sure what "GROUPS" does to images. I hate GROUPS.  Forums are better and allow you to retain/library of topics and Q&A, = (
I'll attach it again.  Is there a limit? size? restriction?    I'll attach at ORIGINAL SIZE


RA KICK.JPG

On Thu, Jun 18, 2020 at 4:37 PM Ron Kramer <ronkramer1957@...> wrote:
I don't own use a keypad.   I did try that SWAP OVER - but I then cleaned it and not sure where it ended up.  Since the last test clearly had the saime  KICKS. I can do ig again.  
What does that do?  I think it might track toward the other side of the groove?  I'll swap it over again and see if it helps since re-greasing.

NICELY - greasing lowered my RA RMA error almost 50%.  Here is my history.

Mount arrived. I guided around 1.0.  Always trying to tweak it - not sure why but months later I was guiding at  .24 RMS error (arc set). yeah - that's awesome.
MANY months of that... The RASA guided better than my long APO.  But late winter I swapped RASA V1 for a RASA V2 (heavier) and ever since my guiding was 1.5 average.  My image scale is 1.69 
lately - the RA kicks put me into  1.7-2.0.  I get double stars on every other sub. 
I re-greased the RA and last night afterwards I was 1.1max and usuall around .89 tot rms arc sec. (nice)  But the RA still kicks and makes for double stars.  My dec was still poor so I'll regrease dec next and check
my alignment. (it's fairly perminent in a dome, but I have a tripod leg/mount and it "can move".  I usually check alignment 1-2 times a year or when ever guiding quality decreases. 
I am not aware of any gear scraping - I always release it clean...  I have on 3-4 occasions allowed it to track into a leg and (stop). Not sure if that hurts anything. But seems to work fine next time.

I don't understand why the RA kick changed from lower to higher (E to W?) the mount orientation did not change. 
I'll swap the part positions over and try again tonight.  During regreasing/cleaning I saw nothing strange. No chunks or crud.  old Grease moved quickly,  freely. not at all gummy. 
I have some pics n video.



On Thu, Jun 18, 2020 at 3:39 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Hello Ron,

Howard won't be able to answer you at this time.

Can you do a test for me?

With keypad in Autostart NO, send the mount to Park1 and turn off power.
Loosen the clutches and move the mount to Park5 manually.
Turn power back on and press "Resume from Park5"

Now check to see if the RA anomaly persists. let me know the results and we can go from there.

By the way, your screen shot is so blurry I cannot make out any details on it.

Rolando



-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 1:35 pm
Subject: Re: [ap-gto] Mach1 problem please assist

I re-greased the RA.  It was really relaxing and nothing to fear.  No springs jumped out at me or other crazy surprises. 
The first test last night showed my RA improved by almost 50% reduction in RA RMS error.  (I'm shocked).

On the bad side, I did not fix my RA KICK problem.  I did not see RA worm flaws except on the very end (3 turns) of the worm and I'm sure that is never in contact with the drive gear.
I have emailed Howard... but wondered if it helps determine the problem from last night's guide log.  I was surprised to see it FLIPPED the RA kick.  (no meridian flip took place) why would it flip? 


RA KICK.JPG

On Wed, Jun 17, 2020 at 4:21 PM Ron Kramer via groups.io <ronkramer1957=gmail.com@groups.io> wrote:
Kit arrived late last night. (UPS error)
Today it was hot in the dome so I just did the RA worm and drive gear. And the side gears)
I hope to test tonight and see if it solves my RA kicking problem. 

I inspected the worm and was in fine shape - EXCEPT I had some very rough area which I don't think matters. It was way over on the very edges of the worm... like the last 2-3 turns were rough. I don't believe this are ever used? 

I greased the entire worm even though it said just the center is all that's needed. Figured it would help ward off corrosion.   The process wasn't scary once the RA box was removed. In fact (I don't recommend this) but I didn't even take my gear off the mount.  RASA 11 + essentials upside down at times.   I forgot about the cords but never turned more than 180.  I actually read the instructions after I was done. (common for me, I like to dig in) then see what I did wrong. 

SOUNDS nice... Will see if the RA hiccups tonight in a guiding test.  if all is good I'll do DEC tomorrow but RA was a primary concern as it would jump and killed every other sub.

Will see tonight.





On Wed, Jun 10, 2020 at 4:33 PM Marj Christen <marj@...> wrote:
Ron,
 
Now that our production staff has returned, the turnaround time for repairs is pretty quick. There is no standard cost for a “ tune up” since it depends on what is involved and if parts have to be replaced.
 
Try regreasing first and contact us again if you can’t resolve the issue.
 
Clear Skies,
 
Marj Christen
Astro-Physics, Inc
11250 Forest Hills Rd
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
 
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Wednesday, June 10, 2020 1:33 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist
 
I'm about to try to re-grease - I'll see if I can see something during inspection.  Is swapping the worm something easy I can do at home? 
I don't want to do anything complicated. I don't believe I've nicked a gear - I only use park3.  But it has come against the pier during a few 3-4 occasions? Would that do anything?

How much does it cost to send it in for a tune up?  HOW LONG would I be without it?  I'm near in Grand Rapids, MI.
I'll look for a clump of anything in the worm teeth.  If I send it in I don 't want it waiting for weeks/days. What is time frame? 
I ordered the grease, I'll see how that goes.
 
 
On Tue, Jun 9, 2020 at 7:51 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Forget backlash in RA. There is no such thing. RA always tracks so it never reverses. Backlash does not enter into tracking.
 
You may have damaged your worm teeth when you backed off the worm to do a fine balance. You may have forgotten to do it only in the Park3 position. If that's the case, the worm may have a nick in the teeth and it will show up as a repeating pattern once every 6.4 minutes.
 
Rolando
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Tue, Jun 9, 2020 3:30 pm
Subject: [ap-gto] Mach1 problem please assist
My mach1 is about 2.5 years old.  I was getting awesome guiding with a total rms error of .24 arc sec.  
Winter came and went and this spring it's been horrible.  like  1.4.   My image scale is about 1.69 so I lived with that for a while, but lately
the RA is  KICKING in almost a timely fashion.  One of these kicks makes double stars.  Around 1/2 my subs have to be deleted.
Nothing I have tried to far has fixed it.
I will include the log from a couple nights ago to show what I mean. 
I did a new calibration - then a guide assistant for a while... then set recommendations and let it guide a while.
You'll see   RA  kicking like a mule in a rather evenly timed fashion!?!  
I would so appreciate help with this.  Someone in PHD said make sure the mount software/HC doesn't have backlash on.  
I DO NOT USE or own a HC and I don't know of any BackLash setting in APCC pro.  I'm going nuts. 
 
 

 
--


--


--


--


--




APCC Pro with Mach2?

Roland Christen
 

I would like to remind everyone that the Mach2 purchase price includes APCC Pro and all modeling routines and programs in the keypad also, if the keypad is purchased. There's an ongoing thread in CN that can be misleading.

You also get a hefty counterweight bar which by itself counterweighs a small scope setup. Yes, actual counterweights are extra as well as tripods, piers and dovetail plates.

If in doubt about prices, what's included and options, don't ask posters on other newsgroups, just visit our webpage.

By the way, with good polar alignment, I have tested our tracking model to be accurate for up to 1 hour exposures with my 160EDF refractor. I got a max drift of around 1 arc sec in that hour's time. What this means is that you can probably set up your imaging rig, eliminate all the extra claptrap needed for guiding (camera, guide scope, wires, guide software etc) and save a bit of money. Makes the setup much cleaner too. I imaged for many hours with super smooth tracking in RA and Dec, and had to throw out only an occasional sub due to passing clouds. The clouds did not affect the tracking one bit. If I had been guiding, it would have gone for parts unknown when the clouds passed over.

Rolando


Re: Mach1 problem please assist

Worsel
 

Ron

You could provide logs same as on the PHD2 forum...just provide the link to the PHD2 server.

Bryan


Re: Mach1 problem please assist

Roland Christen
 

That's interesting.
A gear defect can only occur every 6.4 minutes, never at some random time or at shorter or longer time periods. There was no answer as to what the time period was for each spike, and the graph time cannot be read. It woudl really be helpful to know the time period.

Rolando


-----Original Message-----
From: Brian Valente <bvalente@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 4:25 pm
Subject: Re: [ap-gto] Mach1 problem please assist

those big offsets and changing directions look an awful lot like the spiral dither pattern in PHD

On Thu, Jun 18, 2020 at 2:11 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
The graph shows 7 RA motions in the down direction, then a number of RA moves in the opposite direction. Is this over a period of time continuously? In other words, was this graph taken without interruption?

Roland



-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 3:42 pm
Subject: Re: [ap-gto] Mach1 problem please assist

Capture is CLEAR and sharp. not sure what "GROUPS" does to images. I hate GROUPS.  Forums are better and allow you to retain/library of topics and Q&A, = (
I'll attach it again.  Is there a limit? size? restriction?    I'll attach at ORIGINAL SIZE


RA KICK.JPG

On Thu, Jun 18, 2020 at 4:37 PM Ron Kramer <ronkramer1957@...> wrote:
I don't own use a keypad.   I did try that SWAP OVER - but I then cleaned it and not sure where it ended up.  Since the last test clearly had the saime  KICKS. I can do ig again.  
What does that do?  I think it might track toward the other side of the groove?  I'll swap it over again and see if it helps since re-greasing.

NICELY - greasing lowered my RA RMA error almost 50%.  Here is my history.

Mount arrived. I guided around 1.0.  Always trying to tweak it - not sure why but months later I was guiding at  .24 RMS error (arc set). yeah - that's awesome.
MANY months of that... The RASA guided better than my long APO.  But late winter I swapped RASA V1 for a RASA V2 (heavier) and ever since my guiding was 1.5 average.  My image scale is 1.69 
lately - the RA kicks put me into  1.7-2.0.  I get double stars on every other sub. 
I re-greased the RA and last night afterwards I was 1.1max and usuall around .89 tot rms arc sec. (nice)  But the RA still kicks and makes for double stars.  My dec was still poor so I'll regrease dec next and check
my alignment. (it's fairly perminent in a dome, but I have a tripod leg/mount and it "can move".  I usually check alignment 1-2 times a year or when ever guiding quality decreases. 
I am not aware of any gear scraping - I always release it clean...  I have on 3-4 occasions allowed it to track into a leg and (stop). Not sure if that hurts anything. But seems to work fine next time.

I don't understand why the RA kick changed from lower to higher (E to W?) the mount orientation did not change. 
I'll swap the part positions over and try again tonight.  During regreasing/cleaning I saw nothing strange. No chunks or crud.  old Grease moved quickly,  freely. not at all gummy. 
I have some pics n video.



On Thu, Jun 18, 2020 at 3:39 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Hello Ron,

Howard won't be able to answer you at this time.

Can you do a test for me?

With keypad in Autostart NO, send the mount to Park1 and turn off power.
Loosen the clutches and move the mount to Park5 manually.
Turn power back on and press "Resume from Park5"

Now check to see if the RA anomaly persists. let me know the results and we can go from there.

By the way, your screen shot is so blurry I cannot make out any details on it.

Rolando



-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 18, 2020 1:35 pm
Subject: Re: [ap-gto] Mach1 problem please assist

I re-greased the RA.  It was really relaxing and nothing to fear.  No springs jumped out at me or other crazy surprises. 
The first test last night showed my RA improved by almost 50% reduction in RA RMS error.  (I'm shocked).

On the bad side, I did not fix my RA KICK problem.  I did not see RA worm flaws except on the very end (3 turns) of the worm and I'm sure that is never in contact with the drive gear.
I have emailed Howard... but wondered if it helps determine the problem from last night's guide log.  I was surprised to see it FLIPPED the RA kick.  (no meridian flip took place) why would it flip? 


RA KICK.JPG

On Wed, Jun 17, 2020 at 4:21 PM Ron Kramer via groups.io <ronkramer1957=gmail.com@groups.io> wrote:
Kit arrived late last night. (UPS error)
Today it was hot in the dome so I just did the RA worm and drive gear. And the side gears)
I hope to test tonight and see if it solves my RA kicking problem. 

I inspected the worm and was in fine shape - EXCEPT I had some very rough area which I don't think matters. It was way over on the very edges of the worm... like the last 2-3 turns were rough. I don't believe this are ever used? 

I greased the entire worm even though it said just the center is all that's needed. Figured it would help ward off corrosion.   The process wasn't scary once the RA box was removed. In fact (I don't recommend this) but I didn't even take my gear off the mount.  RASA 11 + essentials upside down at times.   I forgot about the cords but never turned more than 180.  I actually read the instructions after I was done. (common for me, I like to dig in) then see what I did wrong. 

SOUNDS nice... Will see if the RA hiccups tonight in a guiding test.  if all is good I'll do DEC tomorrow but RA was a primary concern as it would jump and killed every other sub.

Will see tonight.





On Wed, Jun 10, 2020 at 4:33 PM Marj Christen <marj@...> wrote:
Ron,
 
Now that our production staff has returned, the turnaround time for repairs is pretty quick. There is no standard cost for a “ tune up” since it depends on what is involved and if parts have to be replaced.
 
Try regreasing first and contact us again if you can’t resolve the issue.
 
Clear Skies,
 
Marj Christen
Astro-Physics, Inc
11250 Forest Hills Rd
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
 
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Ron Kramer
Sent: Wednesday, June 10, 2020 1:33 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 problem please assist
 
I'm about to try to re-grease - I'll see if I can see something during inspection.  Is swapping the worm something easy I can do at home? 
I don't want to do anything complicated. I don't believe I've nicked a gear - I only use park3.  But it has come against the pier during a few 3-4 occasions? Would that do anything?

How much does it cost to send it in for a tune up?  HOW LONG would I be without it?  I'm near in Grand Rapids, MI.
I'll look for a clump of anything in the worm teeth.  If I send it in I don 't want it waiting for weeks/days. What is time frame? 
I ordered the grease, I'll see how that goes.
 
 
On Tue, Jun 9, 2020 at 7:51 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
Forget backlash in RA. There is no such thing. RA always tracks so it never reverses. Backlash does not enter into tracking.
 
You may have damaged your worm teeth when you backed off the worm to do a fine balance. You may have forgotten to do it only in the Park3 position. If that's the case, the worm may have a nick in the teeth and it will show up as a repeating pattern once every 6.4 minutes.
 
Rolando
 
 
 
-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Tue, Jun 9, 2020 3:30 pm
Subject: [ap-gto] Mach1 problem please assist
My mach1 is about 2.5 years old.  I was getting awesome guiding with a total rms error of .24 arc sec.  
Winter came and went and this spring it's been horrible.  like  1.4.   My image scale is about 1.69 so I lived with that for a while, but lately
the RA is  KICKING in almost a timely fashion.  One of these kicks makes double stars.  Around 1/2 my subs have to be deleted.
Nothing I have tried to far has fixed it.
I will include the log from a couple nights ago to show what I mean. 
I did a new calibration - then a guide assistant for a while... then set recommendations and let it guide a while.
You'll see   RA  kicking like a mule in a rather evenly timed fashion!?!  
I would so appreciate help with this.  Someone in PHD said make sure the mount software/HC doesn't have backlash on.  
I DO NOT USE or own a HC and I don't know of any BackLash setting in APCC pro.  I'm going nuts. 
 
 

 
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--
Brian 



Brian Valente

7801 - 7820 of 79026