When I had problems with that error in PHD and HEQ5 the two issues were cone error, the scope not parallel with the axis, and play in my dec axis and mount plate fixings.
Quote:
Originally Posted by Astrofriend
The last night we got a clear sky and I could do some testing of the EQ6 mount with its new timing belt.
At least everything started up and it moved as it should.
But when doing auto guide calibration in PHD2 I got a varning about the orthogonality bewteen the RA axis and the DEC axis.
I also have a little strange behavior of the RA axis, it looks to rotate too fast. I compensated it with the drift compensating in EQMOD, set it to -18.
And about the most interesting, the auto guidning error ? Well, if not perfect it was below 1", the tot rms error. The drifting looks to be slow and smoth so with tweaking of the guide parameters it maybe is possible to get lower.
Here it is:
http://www.astrofriend.eu/astronomy/...ebuilding.html
Any idea why I get that high orthogonality error (more then 10 degrees) between the RA axis and the DEC axis ? Do I have to setup the new gear ratio in more places then the EQMOD setup window ?
/Lars from cold and dark Sweden |