Hey Michael, Hey All,
I wrote a lot with Michael via PM - we tested a lot of things in the last week. (Michael is not able to post in the indi forum anymore.I also have problems to post, e.g. in Firefox I cant press the submit button.)
I discussed the alignment stuff with Michael on basis of the alignment-whitepaper from indi and we decided to test a bit.
Good news:
The first time I was able to reduce the drift while it was there -> and I made three complete restarts to test it (with moving/ turning the full equipment a few centimeter).
the procedure:
1. start up everything
2. slewed the scope with mount-control and platesolves (option "nothing") to star Al Giedi
3. first platesolve at star with "sync"
4. enable tracking -> drift problem is there a 14 Sek frame was not possible
Now the important part:
5. I did about 12 gotos and platesolves in the direct neighborhood (in an irregular circle) around the target. but realy not far away - maximum 3x field of solver distance (120/30 Scope). Between the gotos I sometimes returned to the target and platesolved again on the target.
6. The drift was nearly gone and I was able to take some super sharp shots on:
- Star Algiedi
- IC4756
- NGC6976
(files as attachements - camera was again Raspberry Pi HQ Cam at 14 Sec exposure at a 420/76 scope)
After every target I did a full restart (mount and pi) and everytime after the first solve on target I had again the drift -> after the platesolve-circle the drift was almost not noticeable.
It would be great if someone could test and confirm this.
So all in all I think the syncpoints in the model do somehow influence the tracking. For me, if the circle-procedure works reliable -> I m happy
Regards,
Mat