Strange behavior with Mach 2 and MaximDL auto pier flip #ASCOM_V2_Driver #Mach2GTO #Guiding


Howard Hedlund
 

Hi Brad,
I can't help much on the Maxim side, but regarding the AP V2 driver, I'll mention two things:
  1. I'm sure you are aware, but just in case, the pier side is displayed on the driver's window just above the direction buttons.
  2. You can verify in the log files with a search for   :pS#    (tell the search to match case).  The response is coming directly from the GTOCP5, and will be what the driver reports to all other software.


jaddbd
 

I bit the bullet and upgraded a few months ago to the latest Maxim build (now 6.26) from an early version of 6.  The quirky guiding issues I had (including the occasional star-faded issue) finally seem to have been rectified.  

JD 


Roland Christen
 

The Mach2 doesn't drift after pier flip, however it would not hurt to try this.

My version of Maxim6 is buggy in several ways also and at times it won't automatically change the pier side (sometimes it does, sometimes not). It also won't always connect to the mount properly if another application like SkyX connected first. Sometimes the only way I can get it to work is to shut it down and re-open. The bug file is useless, doesn't tell what the error is. I should probably get a new version and quit screwing around with this one.

Rolando

-----Original Message-----
From: jaddbd <jad@...>
To: main@ap-gto.groups.io
Sent: Wed, Apr 21, 2021 3:09 pm
Subject: Re: [ap-gto] Strange behavior with Mach 2 and MaximDL auto pier flip #ASCOM_V2_Driver #Mach2GTO #Guiding

Try the adaptive check box under the guiding/advanced, pier flip.  This fixed it for me.  When it flips, it will sometimes drift out for 20 arcsecs or so, then figures out that it is going the wrong way and corrects back.  It's then good to go for the rest of session on that side of the pier.

John D 

--
Roland Christen
Astro-Physics


jaddbd
 

Try the adaptive check box under the guiding/advanced, pier flip.  This fixed it for me.  When it flips, it will sometimes drift out for 20 arcsecs or so, then figures out that it is going the wrong way and corrects back.  It's then good to go for the rest of session on that side of the pier.

John D 


Bradley Rode
 

I'm experiencing a strange problem that's driving me bonkers.

Just for background, and to assure folks that I'm not a complete novice with these issues, please note that I use the same setup on several different rigs: AP175 on AP1100 mount, FSQ85 on RST-135, Officina Stellare RiFAST 400 on Planewave A200, all using MaximDL for capture and auto guiding.

I've just upgraded my Mach1 to a Mach2 with an AP130. I used the same setup on my Mach1 with MaximDL, and auto pier flips worked flawlessly, as they do on the three other systems listed above.
However, with my Mach2, suddenly MaximDL seems to be ignoring the pier flip, resulting in runaway guiding after the flip.

I do have Auto Pier Flip checked in the Guiding panel.
I calibrate in the eastern sky.
I have confirmed it guides fine in the east.
When it flips, it goes crazy.

HOWEVER, if I flip, and check the manual Pier Flip box, it guides fine. Somehow, MaximDL is not seeing the pier flip. This suggests that either the ASCOM AP V2 driver is mis-reporting the pier side after the flip, or MaximDL has a bug that is triggered by this particular configuration. I'm checking both places, AP and Diffraction Limited, to see if anyone can help shed some light on this.

Thanks!
Brad