Didn't work with SGP. Worked fine with NINA on the same target M15.
The rotater would respond to commands but in the 2nd or third rotate command in the centering action would just "hang" SGP. In the log SGP has entries stating "timed out waiting for rotater move". I will supply more details tomorrow as I been up late testing.
Overall these are the things one has to do and the issues I had with the rotater:
- couldn't center on target with SGP - SGP would wait indefinitely for the rotater to make a requested move(s) and either it was there already or wouldn't respond the SGP request. I tried multiple times restarting SGP once even in-between.
- worked fine with NINA as far as I could tell.
- initially had issues with PHD2 guiding until I figured out I had to enable it's one and only rotater option "reverse sign for corrections" or something, Sorry don't quite remember the exact wording. But it's the only option on the tab "other devices" that shows up after enabling the rotater in the equipment list.
- don't forget to recal PHD2 with the rotater connected.
- two odd issues appeared - and I don't know if they are roater related or not as yet. They both appear in PHD's video frame nearest to the point of rotation in the frames. I use a ASI174 as the guide cam.
- a circular reflection appears to be coming from the rotater, perhaps off one of the shiny bearings.
-moving the telescope the reflection stayed mostly consistent (with small moves)
- rotating the rotater would eventually make the reflection disappear.
- it wasn't always visible, but did appear numerous times at several angles and positions in the sky.
- my stars in the PHD video window nearest the point of rotation are always distorted in a elongated pattern.
- you have to have the stand-alone utility running before any ASCOM based connection to the rotater will work. I wish the ASCOM side would auto - launch the standalone utility if not running.
- lastly, the backfocus is actually 19mm without adapters. The camera side threaded attachment piece sticks out 1 mm from the blue body case. I use a 53mm male to 48mm female adapter on the scope side so for me my total backfocus taken up with the rotater is 23mm (19mm+2mm +2mm).
More testing and details to follow.
I used my own DIY rotater for a few years, but got tired of the slight tilt I could never get rid of - so I am giving the Falcon a try. Its a well built piece of kit and smaller than the pictures make out. It works very quietly and accurately in my minimal testing so far with no slack, slop, or play in the attachment points that I could detect as yet. Much more testing to perform.
Edited by nightfly85, 19 July 2020 - 04:04 AM.