Date   

Re: Mach2 and PHD2 Guiding recommendations

Eric Dreher
 

Charles, the same thing happened with my Mach1GTO CP4 a couple of weeks ago.  The GA recommended Lowpass 2, so I gave it a shot.

It hadn't done that before, but it gave me the best guiding I've ever had.

Eric


Re: Mach2 and PHD2 Guiding recommendations

Roland Christen
 

I have used Lowpass2 and it works quite well.

Rolando



-----Original Message-----
From: Charles Thompson via groups.io <cthomp97@...>
To: main@ap-gto.groups.io
Sent: Tue, May 19, 2020 1:31 pm
Subject: Re: [ap-gto] Mach2 and PHD2 Guiding recommendations

Also, if you run the guiding assistant for a while (10 minutes+) it will recommended a different algorithm if it thinks a different one might be more appropriate than the current selection. 

Last week I ran it for a while on the 1100 and it recommended Lowpass2. It has never done that before though so it might be a new update. 





Thanks,
Charles

Sent from mobile device.


-------- Original message --------
From: "uncarollo2 <chris1011@...> via groups.io" <chris1011@...>
Date: 5/19/20 1:10 PM (GMT-06:00)
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 and PHD2 Guiding recommendations

Try them, see which one works best for you. I have not had skies good enough for much imaging, and when it is clear I am usually testing other functions (modeling, unguided imaging etc).
If it's clear later this week I will do some PHD2 testing.

Rolando



-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Tue, May 19, 2020 12:47 pm
Subject: Re: [ap-gto] Mach2 and PHD2 Guiding recommendations

Excellent, it sounds simple enough.  I use PHD2 now so the guide scope is set up.

I was also wondering about Mount Guide Algorithms for both RA and declination.  Last summer you were comparing hysteresis vs lowpass vs lowpass2 if I recall correctly.  Do you have a recommendation for the RA and for the declination algorithms?
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Mach2 and PHD2 Guiding recommendations

Charles Thompson
 

Also, if you run the guiding assistant for a while (10 minutes+) it will recommended a different algorithm if it thinks a different one might be more appropriate than the current selection. 

Last week I ran it for a while on the 1100 and it recommended Lowpass2. It has never done that before though so it might be a new update. 





Thanks,
Charles

Sent from mobile device.


-------- Original message --------
From: "uncarollo2 <chris1011@...> via groups.io" <chris1011@...>
Date: 5/19/20 1:10 PM (GMT-06:00)
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 and PHD2 Guiding recommendations

Try them, see which one works best for you. I have not had skies good enough for much imaging, and when it is clear I am usually testing other functions (modeling, unguided imaging etc).
If it's clear later this week I will do some PHD2 testing.

Rolando



-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Tue, May 19, 2020 12:47 pm
Subject: Re: [ap-gto] Mach2 and PHD2 Guiding recommendations

Excellent, it sounds simple enough.  I use PHD2 now so the guide scope is set up.

I was also wondering about Mount Guide Algorithms for both RA and declination.  Last summer you were comparing hysteresis vs lowpass vs lowpass2 if I recall correctly.  Do you have a recommendation for the RA and for the declination algorithms?
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Mach2 and PHD2 Guiding recommendations

Roland Christen
 

Try them, see which one works best for you. I have not had skies good enough for much imaging, and when it is clear I am usually testing other functions (modeling, unguided imaging etc).
If it's clear later this week I will do some PHD2 testing.

Rolando



-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Tue, May 19, 2020 12:47 pm
Subject: Re: [ap-gto] Mach2 and PHD2 Guiding recommendations

Excellent, it sounds simple enough.  I use PHD2 now so the guide scope is set up.

I was also wondering about Mount Guide Algorithms for both RA and declination.  Last summer you were comparing hysteresis vs lowpass vs lowpass2 if I recall correctly.  Do you have a recommendation for the RA and for the declination algorithms?
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Mach2 and PHD2 Guiding recommendations

Dean Jacobsen
 

Excellent, it sounds simple enough.  I use PHD2 now so the guide scope is set up.

I was also wondering about Mount Guide Algorithms for both RA and declination.  Last summer you were comparing hysteresis vs lowpass vs lowpass2 if I recall correctly.  Do you have a recommendation for the RA and for the declination algorithms?
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Mach2 and PHD2 Guiding recommendations

Roland Christen
 


Set a delay of 2 to 3 seconds
By the way that's set in milliseconds, so should read 2000 to 3000msec in the setup window.

Rolando


-----Original Message-----
From: uncarollo2 <chris1011@...> via groups.io <chris1011@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Tue, May 19, 2020 12:33 pm
Subject: Re: [ap-gto] Mach2 and PHD2 Guiding recommendations

It's really quite simple.

1) Set a delay of 2 to 3 seconds between guide exposures. No need to chase gear errors because there aren't any.
2) use whatever exposure time you want to get a good signal/noise ratio (usually from 1 to 5 seconds)
3) use Guiding assistant to gauge the seeing and set your MinMove to what is recommended.
4) depending on seeing, the aggressiveness can be set between 50% to 90%.

Be sure that your guide scope focal length is set properly in PHD2 in the scope setup window.

Then image away.

Rolando



-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Tue, May 19, 2020 11:41 am
Subject: [ap-gto] Mach2 and PHD2 Guiding recommendations

Roland,

I seem to recall that you mentioned in a post a month or so ago that you were working on recommendations for PHD2 guide settings with the Mach2.  Have those been memorialized anywhere in a single location so we can look them up?  If not then I can certainly start looking through your posts here on the forum.
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Mach2 and PHD2 Guiding recommendations

Roland Christen
 

It's really quite simple.

1) Set a delay of 2 to 3 seconds between guide exposures. No need to chase gear errors because there aren't any.
2) use whatever exposure time you want to get a good signal/noise ratio (usually from 1 to 5 seconds)
3) use Guiding assistant to gauge the seeing and set your MinMove to what is recommended.
4) depending on seeing, the aggressiveness can be set between 50% to 90%.

Be sure that your guide scope focal length is set properly in PHD2 in the scope setup window.

Then image away.

Rolando



-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Tue, May 19, 2020 11:41 am
Subject: [ap-gto] Mach2 and PHD2 Guiding recommendations

Roland,

I seem to recall that you mentioned in a post a month or so ago that you were working on recommendations for PHD2 guide settings with the Mach2.  Have those been memorialized anywhere in a single location so we can look them up?  If not then I can certainly start looking through your posts here on the forum.
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Mach2 and PHD2 Guiding recommendations

Dean Jacobsen
 

Roland,

I seem to recall that you mentioned in a post a month or so ago that you were working on recommendations for PHD2 guide settings with the Mach2.  Have those been memorialized anywhere in a single location so we can look them up?  If not then I can certainly start looking through your posts here on the forum.
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Mach2 hand controller update

Terri Zittritsch
 

On Tue, May 19, 2020 at 10:38 AM, uncarollo2 <chris1011@...> wrote:
I'm working on the keypad project as much as I can. I'm also assembling mounts, optics for scopes, field flatteners and other accessories and other day to day tasks. for the keypad I have to write the instruction manual for all the new features and that will take a bit of time. hopefully the stay at home orders will be lifted and we can prepare our operation for our employees to come back soon. Until then, it's slow going, I'm a'feared.
 
Rolando
I can appreciate the increased workload Roland, my workload has only increased during the pandemic as well.       

Terri



Re: Mach2 hand controller update

Dean Jacobsen
 

On Tue, May 19, 2020 at 07:38 AM, uncarollo2 <chris1011@...> wrote:
I'm working on the keypad project as much as I can. I'm also assembling mounts, optics for scopes, field flatteners and other accessories and other day to day tasks.
Thank you for what you have been doing.
 
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Private Email

Larry Phillips
 

Karen, I sent you a private email using the AP site on Saturday.  Since I haven't heard back I want to make sure you received it.

Larry Phillips


Re: Mach2 hand controller update

Roland Christen
 

I'm working on the keypad project as much as I can. I'm also assembling mounts, optics for scopes, field flatteners and other accessories and other day to day tasks. for the keypad I have to write the instruction manual for all the new features and that will take a bit of time. hopefully the stay at home orders will be lifted and we can prepare our operation for our employees to come back soon. Until then, it's slow going, I'm a'feared.

Rolando



-----Original Message-----
From: Terri Zittritsch <theresamarie11@...>
To: main@ap-gto.groups.io
Sent: Tue, May 19, 2020 8:27 am
Subject: [ap-gto] Mach2 hand controller update

Since I'm seeing that A-P is shipping more Mach2's, can I ask when the hand controller firmware updates to enable the Mach2 will be released?   We heard about Roland going to Hawaii to test out the hand controller updates, but since then we've not heard anything.   


Best,
Terri


Mach2 hand controller update

Terri Zittritsch
 

Since I'm seeing that A-P is shipping more Mach2's, can I ask when the hand controller firmware updates to enable the Mach2 will be released?   We heard about Roland going to Hawaii to test out the hand controller updates, but since then we've not heard anything.   


Best,
Terri


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Roland Christen
 

Very nice setup. Good to see young people doing stuff outdoors.

Rolando



-----Original Message-----
From: Robert Berta <biker123@...>
To: main@ap-gto.groups.io
Sent: Mon, May 18, 2020 7:35 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

I agree donating to a school isn't a good idea....won't get much use unless you can get a dedicated teacher that is willing to be there at night....without pay.  I highly recommend donating to a scout camp...it will get a lot of use year round for scouts working on their astronomy merit badges.  I designed, helped build, and am now manager of an observatory in a huge scout camp in S/E Michigan. We have a 16'x20' roll off roof building housing a 14" Celestron SCT HD on a Celestron CGE PRO mount. We also have two 12" DOBS and a Lunt 60mm Ha solar scope. When the roof is slid back it covers an equal sized area with benches for classes and video talks. We also have capability of video from the telescope to the big screen TV via a Hyperstar setup....but only used occasionally. Normally it is all visual. The outside of the building has  additional concrete pads isolated from the wooden deck to setup the dobs and Lunt solar scope.As far as I know it is the largest astronomy facility in any Scout facility in the world

The camp gets thousands of Boy and Girl Scouts plus younger Cubs and Brownies, Jr. Girl Scouts, etc. We would have AP mounts but that was out of our price range. All the gear and building are through donations and volunteer labor.. We found that Scouts tend to have more interest in outdoor activities than other children of the same age due to the emphasis by Scouting on outdoors activities and STEM. Some of those Scouts join one of the 4 astronomy clubs locally.. There have been 4 Eagle projects (one by my son) at one of the clubs  (Warren Astronomical Society).That club has an AP 1200 GTO supporting a 8" D&G refractor. Needless to say astronomy is a big deal here....when the weather isn't fighting us.


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Robert Berta
 

I agree donating to a school isn't a good idea....won't get much use unless you can get a dedicated teacher that is willing to be there at night....without pay.  I highly recommend donating to a scout camp...it will get a lot of use year round for scouts working on their astronomy merit badges.  I designed, helped build, and am now manager of an observatory in a huge scout camp in S/E Michigan. We have a 16'x20' roll off roof building housing a 14" Celestron SCT HD on a Celestron CGE PRO mount. We also have two 12" DOBS and a Lunt 60mm Ha solar scope. When the roof is slid back it covers an equal sized area with benches for classes and video talks. We also have capability of video from the telescope to the big screen TV via a Hyperstar setup....but only used occasionally. Normally it is all visual. The outside of the building has  additional concrete pads isolated from the wooden deck to setup the dobs and Lunt solar scope.As far as I know it is the largest astronomy facility in any Scout facility in the world

The camp gets thousands of Boy and Girl Scouts plus younger Cubs and Brownies, Jr. Girl Scouts, etc. We would have AP mounts but that was out of our price range. All the gear and building are through donations and volunteer labor.. We found that Scouts tend to have more interest in outdoor activities than other children of the same age due to the emphasis by Scouting on outdoors activities and STEM. Some of those Scouts join one of the 4 astronomy clubs locally.. There have been 4 Eagle projects (one by my son) at one of the clubs  (Warren Astronomical Society).That club has an AP 1200 GTO supporting a 8" D&G refractor. Needless to say astronomy is a big deal here....when the weather isn't fighting us.


Re: Motor Gear box removal instructions (newer auto-meshing model)

John O'Grady
 

I heard back from George.
I missed the instructions that are applicable for the new gearbox.
They are located on page 9 - problem solved.

Sorry everyone for not taking greater care in RTM.

Thanks - John


Re: Mach2 Status Update

Dean Jacobsen
 

Congratulations guys!  I can't wait to hear about your experiences in getting the mounts set up and your observing and imaging experiences.

Mine is coming too.  ;-)  Although I love my 12 year old AP900, I am looking forward to using all of the advancements that have been incorporated into the Mach 2. 

Thanks to everyone at AP! 
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Mach2 Status Update

Dominique Durand
 

Tomorrow between 8 am and 1 pm (At home) my mach2 will be delivered to me and it will be between 1 and 8 hours in Illinois. Also a big thank you to Roland, Marj, and Karen! and also to Daleen who is doing what it takes to get me up and running tomorrow night and also to the entire AP team.

I think I'm going to have a hard time falling asleep this evening, but I have to keep my strength for this beautiful day that is coming and the night that will follow which promises to be very clear.

Dominique


Re: Motor Gear box removal instructions (newer auto-meshing model)

John O'Grady
 

Hi,

When I remove the plate with the motor & encoder connectors, I see there are two screws on a plate behind the motor. 
I'm assuming I want to:
1. Use the lever to remove the worm from the worm gear
2. Remove the two bolts (completely???) and lift the gearbox off the dovetail.  
 
Is that all there is to it?
 
Then, repeat the same process in reverse, being careful to not bang the worm onto the worm wheel. 

John


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Roland Christen
 

At the bottom of the RA axis there are 6 Socket head screws that hold the RA body onto the base. These can be removed and then you can lift the RA and Dec axes off the base. This reduces the weight that you have to lift by 11 lb, so you end up lifting only 31lb. When you re-assemble, you can leave out the two middle screws when you re-assemble the mount, they are overkill. You can leave the base on your tripod when you move it indoors so you are ready for action the next time you go out. Simply place the mount back onto the base, attach the 4 outer screws and tighten them. That's the best I can recommend to you all for now.

Rolando




-----Original Message-----
From: tallman.doug <tallman.doug@...>
To: main@ap-gto.groups.io
Sent: Sun, May 17, 2020 11:25 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

If we could somehow split the Mach2 so that the heaviest part is less than 30lb, is that worthwhile?

Sorry to pick up this old thread, but I will wholeheartedly cast a vote for being able to split the Mach 2 into separate pieces.

When I image from the backyard I need to carry all my equipment up about 8-9' of stairs. I found that it is doable with the Mach1, but the 42 lb. weight of the Mach 2 has me a little worried. I'm not a big guy, and have had a minor knee surgery and three major hip surgeries (last one just 10 days ago), with the prospect of a few more down the line. Anything towards reducing the Mach2 mount weight is music to my ears.

-Doug

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