Date   

Re: Mach2 power consumption #Mach2GTO

David
 

Try one of these.  I have them both and they are great solutions using Powerpole connections.
They run cool, and quiet, and have never given a problem in the years I’ve used them.



David




On Jun 20, 2020, at 6:27 AM, Jerome Allison <jallison@...> wrote:

Roland, do you have a better 120VAC to 12VDC power supply solution for me?  I'm looking for one.
Between weather and schedule, I finally had a chance outside in the back yard Friday night to see how everything would work.  I've made a lot of changes to my equipment arrangement and wanted a dry run.
I don't want to draw this out, but that Pyramid power supply that I mentioned before (and you noted its inefficiency) does seem to be pretty lame.  I only bought it because it seemed pretty popular/well regarded a few years ago. After a couple hours running my mount, cameras, etc., it was fine.  (as in, who's worrying about the power supply going out?)
But later, during a big double axis slew it QUIT with a "Protection" error light. I let it cool down and it worked from then on, but I was much gentler with it.
I don't want this to happen again, so is the Powerwerx supply the best solution?
Thanks, Jerome


Re: Mach 2GTO manual for download?

Pete Su
 

Reading through some of the past traffic on this I guess the manual is not yet available, at least not for the keypad modeling features. I will wait patiently. :) 

On Sat, Jun 20, 2020 at 8:31 AM Pete Su via groups.io <pete.su=gmail.com@groups.io> wrote:
Is the user manual for the new Mach 2 available for download anywhere? I'm curious about how some of the new features, especially tracking without guiding, will work for non-permanent back yard setups. If used in this sort of mode what would typical setup times be like?

In the past I had a reasonably efficient drift alignment routine for a guided setup, but it always took a while to run.

Thanks,
Pete


Mach 2GTO manual for download?

Pete Su
 

Is the user manual for the new Mach 2 available for download anywhere? I'm curious about how some of the new features, especially tracking without guiding, will work for non-permanent back yard setups. If used in this sort of mode what would typical setup times be like?

In the past I had a reasonably efficient drift alignment routine for a guided setup, but it always took a while to run.

Thanks,
Pete


Re: Mach2 power consumption #Mach2GTO

 

Roland, do you have a better 120VAC to 12VDC power supply solution for me?  I'm looking for one.
Between weather and schedule, I finally had a chance outside in the back yard Friday night to see how everything would work.  I've made a lot of changes to my equipment arrangement and wanted a dry run.
I don't want to draw this out, but that Pyramid power supply that I mentioned before (and you noted its inefficiency) does seem to be pretty lame.  I only bought it because it seemed pretty popular/well regarded a few years ago. After a couple hours running my mount, cameras, etc., it was fine.  (as in, who's worrying about the power supply going out?)
But later, during a big double axis slew it QUIT with a "Protection" error light. I let it cool down and it worked from then on, but I was much gentler with it.
I don't want this to happen again, so is the Powerwerx supply the best solution?
Thanks, Jerome


Re: Do-it-yourself battery replacement in 'new' keypad vs have AP do it ? (Cost ?)

Geert
 

Gert, 

 

I have replaced batterys in my keypad(s) with the instructions as given on the AP tech support page, no problem to do it yourself provided you have the correct battery type for your keypad.  Read the instructions carefully.

 

Sending a keypad to AP to do this is possible but for me prohibitive because of the cost and hassle to do so from Europe.

 

Best regards,

 

Geert Vdbulcke

Belgium

 

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of drgert1 via groups.io
Sent: Friday, June 19, 2020 4:23 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Do-it-yourself battery replacement in 'new' keypad vs have AP do it ? (Cost ?)

 

Hello All,

I need to replace the keypad battery for my AP900 mount.The keypad is the 'newer' model (with resp. to being from AP900 a few years back when it was still offered) I've seen the symptoms as corrupted messier objects DB (magnitude 100). I have serviced two AP1200 mounts for our club and club members. Both where the 'older' model with the cr1632 (3V) battery.

I wasn't aware that there are two variants of the keypad, grabbed my printed instructions from the work at the AP1200s and went right to work. Got confused about the inside of the keypad. Soon realized that I erroneously removed the clock battery. Replaced it. Tried the keypad and time/date was still good. Does the clock chip has some emergency run-time? Could I have damaged something else? Functionality of keypad looks normal (Other than not (yet) having replaced the DB battery? )

The DB battery reads 0.4V. Way out of spec (3V)! So needs replacement.

Going back to AP docs, the procedure to replace the new keypad battery seems 'more tricky'.

1. Have some of you folks gone through the replacement procedure (new keypad) yourself? (Any issues?)
2. I am contemplating sending the keypad to AP and have them do it. Maybe they can do the clock battery and clean connectors at the same time.  (Did some if you do the same? What additional cost?)

Thanks & Clear Skies,
Gert


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Re: Any update on April 2019 notifications for Mach2

David
 

Pretty sure that asking over and over will not make your name come up any faster on the list.  It will come when it comes.




On Jun 20, 2020, at 1:11 AM, Shailesh Trivedi <strivedi@...> wrote:

AP team,

Do you have an estimate when you will begin notifications for the April 2019 Mach 2 sign up list?

Shailesh


Any update on April 2019 notifications for Mach2

Shailesh Trivedi
 

AP team,

Do you have an estimate when you will begin notifications for the April 2019 Mach 2 sign up list?

Shailesh


Re: APPM Status message - bad x scale

Ray Gralak
 

What does "Bad X scale" mean as a Status message in APPM Plate solving mode? These do not count as "Bad
Solves." Should I even worry about them?
It means the platesolve succeeded but the image scale was outside of the image scale tolerance you have defined.

It means it was likely a bad plate solve.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Worsel via groups.io
Sent: Friday, June 19, 2020 8:35 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] APPM Status message - bad x scale

What does "Bad X scale" mean as a Status message in APPM Plate solving mode? These do not count as "Bad
Solves." Should I even worry about them?

Bryan


APPM Status message - bad x scale

Worsel
 

What does "Bad X scale" mean as a Status message in APPM Plate solving mode?  These do not count as "Bad Solves."  Should I even worry about them?

Bryan


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

Christopher Erickson
 

Ah. Got it!

That will be a LOT easier!

I think I have some of those in my parts bins too.


On Fri, Jun 19, 2020 at 3:52 PM Tom Blahovici <tom.va2fsq@...> wrote:
Hi
No, this is much simpler than this.
I want to use my polar scope this summer since I will be using the scope as a portable. Thus having the polar scope is simple.
The scope is however permenantly mounted on a pier on a 6 foot deep concrete block. I do this from the fall until summer. 
When I do the polar alignment there I do not use the polar scope. I drift align with Pempro. The scope is removed.
I just want to machine a plug to go where the scope was. With the polar scope there, there's too much of a risk for it sticking out and catching a wire .
All I need is a plug. Heck, a cork painted black would do...lol.
I just wanted to try my luck machining the plug.
Tom


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

Tom Blahovici
 

Hi
No, this is much simpler than this.
I want to use my polar scope this summer since I will be using the scope as a portable. Thus having the polar scope is simple.
The scope is however permenantly mounted on a pier on a 6 foot deep concrete block. I do this from the fall until summer. 
When I do the polar alignment there I do not use the polar scope. I drift align with Pempro. The scope is removed.
I just want to machine a plug to go where the scope was. With the polar scope there, there's too much of a risk for it sticking out and catching a wire .
All I need is a plug. Heck, a cork painted black would do...lol.
I just wanted to try my luck machining the plug.
Tom


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

Christopher Erickson
 

Speaking as a hybrid hobbyist/professional machinist, I would add that threading can be one of the trickier machining efforts to get right. Especially when you are going to be making two different threads that you are going to want to have very accurate in reference to each other and with the shoulder that the polar scope is going to seat against. And threading up tight to a shoulder is tricky and usually requires a modified threading tool. Testing the fit of the threads on the mount and the polar scope will also be tricky because you will most likely have to remove the part from the chuck and then replace it and re-register it with the threading tool. If you have a compound slide combined with a big illuminated magnifying glass, that can help to get the threading tool re-registered with the partially-cut threads when re-mounting the part in the chuck. However getting the piece precisely-square in the chuck again (.001") isn't trivial at all. I assume you have a dial-micrometer or something with a magnetic base.

On my (German) Prazi lathe which does not have split carriage nuts, I made a manual drive handle that allows me to manually turn threads at a slow rate, which gives me a very precise feel and ability to stop the tool at precise positions. And no risk of over-driving the cutter and ruining the part or breaking the threading tool. YMMV.

If you get the two threads and the outside shoulder even slightly out of square with each other (more than .001" and .1 degree), you will create problems and inaccuracies for yourself when mounting the polar scope on the mount. You will be able to adjust the PASILL polar scope to compensate for pointing errors in one position but when you rotate the polar scope, your alignment will go out. And the tiny PASILL alignment set screws are in direct contact with the glass reticle. Over-tighten them even a tiny amount and you crack the glass. You don't want any play but even the slightest over-tightening will likely ruin the reticle.

This sounds like a challenging but potentially-fun project however you are still going to want to perform a careful drift alignment with the mount so you can accurately test, align and evaluate your machined adapter. And if your goal is to only use this thing once (or once a season) for a permanent polar alignment of a mount on a pier, I really don't see where you will be gaining much from this project, except honing your budding machining skills.

And no matter which way you go, you are still going to have to perform a careful drift alignment if you want to do some serious astrophotography. Even if you invested in an official AP polar scope bushing adapter.

Depending on your mount threads, I might have 3 or more of these adapters in one of my spare-parts boxes and I could simply mail you one.

I hope this helps.

On Fri, Jun 19, 2020 at 10:31 AM Tom Blahovici <tom.va2fsq@...> wrote:
Sounds like I my have to rethink this...I certainly didn't think about having to try it and reposition it in the lathe.
I guess I will need some practice.
Thanks


Re: Do-it-yourself battery replacement in 'new' keypad vs have AP do it ? (Cost ?)

Roland Christen
 


the procedure to replace the new keypad battery seems 'more tricky'.
Just plug your keypad into the CP controller, turn power on. Now you can replace the battery and you won't lose any of the memory data.

Rolando


-----Original Message-----
From: drgert1 via groups.io <drgert1@...>
To: main@ap-gto.groups.io
Sent: Fri, Jun 19, 2020 4:23 pm
Subject: [ap-gto] Do-it-yourself battery replacement in 'new' keypad vs have AP do it ? (Cost ?)

Hello All,

I need to replace the keypad battery for my AP900 mount.The keypad is the 'newer' model (with resp. to being from AP900 a few years back when it was still offered) I've seen the symptoms as corrupted messier objects DB (magnitude 100). I have serviced two AP1200 mounts for our club and club members. Both where the 'older' model with the cr1632 (3V) battery.

I wasn't aware that there are two variants of the keypad, grabbed my printed instructions from the work at the AP1200s and went right to work. Got confused about the inside of the keypad. Soon realized that I erroneously removed the clock battery. Replaced it. Tried the keypad and time/date was still good. Does the clock chip has some emergency run-time? Could I have damaged something else? Functionality of keypad looks normal (Other than not (yet) having replaced the DB battery? )

The DB battery reads 0.4V. Way out of spec (3V)! So needs replacement.

Going back to AP docs, the procedure to replace the new keypad battery seems 'more tricky'.

1. Have some of you folks gone through the replacement procedure (new keypad) yourself? (Any issues?)
2. I am contemplating sending the keypad to AP and have them do it. Maybe they can do the clock battery and clean connectors at the same time.  (Did some if you do the same? What additional cost?)

Thanks & Clear Skies,
Gert


Re: Do-it-yourself battery replacement in 'new' keypad vs have AP do it ? (Cost ?)

George
 

Gert,

 

Please reference the following:

https://astro-physics.info/tech_support/mounts/keypad/keypad-maintenance-instructions.pdf

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-282-1513

Email:  george@...

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of drgert1 via groups.io
Sent: Friday, June 19, 2020 4:23 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Do-it-yourself battery replacement in 'new' keypad vs have AP do it ? (Cost ?)

 

Hello All,

I need to replace the keypad battery for my AP900 mount.The keypad is the 'newer' model (with resp. to being from AP900 a few years back when it was still offered) I've seen the symptoms as corrupted messier objects DB (magnitude 100). I have serviced two AP1200 mounts for our club and club members. Both where the 'older' model with the cr1632 (3V) battery.

I wasn't aware that there are two variants of the keypad, grabbed my printed instructions from the work at the AP1200s and went right to work. Got confused about the inside of the keypad. Soon realized that I erroneously removed the clock battery. Replaced it. Tried the keypad and time/date was still good. Does the clock chip has some emergency run-time? Could I have damaged something else? Functionality of keypad looks normal (Other than not (yet) having replaced the DB battery? )

The DB battery reads 0.4V. Way out of spec (3V)! So needs replacement.

Going back to AP docs, the procedure to replace the new keypad battery seems 'more tricky'.

1. Have some of you folks gone through the replacement procedure (new keypad) yourself? (Any issues?)
2. I am contemplating sending the keypad to AP and have them do it. Maybe they can do the clock battery and clean connectors at the same time.  (Did some if you do the same? What additional cost?)

Thanks & Clear Skies,
Gert


Do-it-yourself battery replacement in 'new' keypad vs have AP do it ? (Cost ?)

drgert1
 

Hello All,

I need to replace the keypad battery for my AP900 mount.The keypad is the 'newer' model (with resp. to being from AP900 a few years back when it was still offered) I've seen the symptoms as corrupted messier objects DB (magnitude 100). I have serviced two AP1200 mounts for our club and club members. Both where the 'older' model with the cr1632 (3V) battery.

I wasn't aware that there are two variants of the keypad, grabbed my printed instructions from the work at the AP1200s and went right to work. Got confused about the inside of the keypad. Soon realized that I erroneously removed the clock battery. Replaced it. Tried the keypad and time/date was still good. Does the clock chip has some emergency run-time? Could I have damaged something else? Functionality of keypad looks normal (Other than not (yet) having replaced the DB battery? )

The DB battery reads 0.4V. Way out of spec (3V)! So needs replacement.

Going back to AP docs, the procedure to replace the new keypad battery seems 'more tricky'.

1. Have some of you folks gone through the replacement procedure (new keypad) yourself? (Any issues?)
2. I am contemplating sending the keypad to AP and have them do it. Maybe they can do the clock battery and clean connectors at the same time.  (Did some if you do the same? What additional cost?)

Thanks & Clear Skies,
Gert


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

Tom Blahovici
 

Sounds like I my have to rethink this...I certainly didn't think about having to try it and reposition it in the lathe.
I guess I will need some practice.
Thanks


Re: Mach1 problem please assist

Roland Christen
 

Turn PE OFF, run 15 minutes UNGUIDED with PHD2 showing the guider graph of star position.
Any guided graph is basically useless for mount troubleshooting.

Rolando

-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Fri, Jun 19, 2020 2:33 pm
Subject: Re: [ap-gto] Mach1 problem please assist

I'll check PE. But after cleaning I did a  "record" and it finished so I suspect it recorded a clean PE. 

I REALLY hate sending in the whole thing.  But would be nice to get it all tweaked. (PHD reports a good amount of backlash (not sure if its true)  It always has since new. The backlash graph is always off a good amount. I just ignore it. 


On Fri, Jun 19, 2020 at 2:19 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:

By the way, is it possible that you have PE correction turned on and you are playing back some bad data? We had this happen once on a mount at the Mauna Kea visitor center. Someone had manually entered a huge correction curve into the PE memory and was playing it back. Caused the mount to jump every worm cycle.

If this is not the case, then the mount needs to be sent in for evaluation. I can look at it the moment it arrives. Also send the cables and CP controller too, in case something is weird there.

Rolando



-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Fri, Jun 19, 2020 10:02 am
Subject: Re: [ap-gto] Mach1 problem please assist

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'll check PE. But after cleaning I did a  "record" and it finished so I suspect it recorded a clean PE. 

I REALLY hate sending in the whole thing.  But would be nice to get it all tweaked. (PHD reports a good amount of backlash (not sure if its true)  It always has since new. The backlash graph is always off a good amount. I just ignore it. 


On Fri, Jun 19, 2020 at 2:19 PM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:

By the way, is it possible that you have PE correction turned on and you are playing back some bad data? We had this happen once on a mount at the Mauna Kea visitor center. Someone had manually entered a huge correction curve into the PE memory and was playing it back. Caused the mount to jump every worm cycle.

If this is not the case, then the mount needs to be sent in for evaluation. I can look at it the moment it arrives. Also send the cables and CP controller too, in case something is weird there.

Rolando



-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Fri, Jun 19, 2020 10:02 am
Subject: Re: [ap-gto] Mach1 problem please assist

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

Roland Christen
 


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. ?
What is it supposed to do? Well for one thing it would tell me if the problem is on the worm wheel since doing this will expose a fresh set of teeth, and it is highly unlikely that each of the 225 teeth are exactly equally damaged to produce an exact same spike in RA tracking.

By the way, your problem might be bad data in the PEM memory. Turn PE correction off and run the mount with no guide input, just monitor the PE cycle via PHD2. No guiding corrections, turn them off. Your guided graphs are not useful for troubleshooting purposes.

Rolando


-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Fri, Jun 19, 2020 10:41 am
Subject: Re: [ap-gto] Mach1 problem please assist

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

Roland Christen
 


By the way, is it possible that you have PE correction turned on and you are playing back some bad data? We had this happen once on a mount at the Mauna Kea visitor center. Someone had manually entered a huge correction curve into the PE memory and was playing it back. Caused the mount to jump every worm cycle.

If this is not the case, then the mount needs to be sent in for evaluation. I can look at it the moment it arrives. Also send the cables and CP controller too, in case something is weird there.

Rolando



-----Original Message-----
From: Ron Kramer <ronkramer1957@...>
To: main@ap-gto.groups.io
Sent: Fri, Jun 19, 2020 10:02 am
Subject: Re: [ap-gto] Mach1 problem please assist

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. 
 
 

 
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