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You can also check if it is a problem with corrupted PEC data.
Just switch off the PEC and check if the problem is still there.
Le 12/08/2015 04:33, g.kurczveil@...
[ap-gto] a écrit :
I'm a newbie to the group, but a long time imager/observer.
Setup: Mach 1, TV127is, STF8300, Orion 50 mm guider.
I have a Mach 1 which occasionally (once every 10-20 frames) gives
spikes in the RA axis. I am certain that it has nothing to do with
the guider (or cosmic ray hits) as I can see this movement even
when the autoguider is not sending commands (i.e. I am just doing
looping exposures). I am also confident that this is not caused by
flex or cables. In addition, the weights are always biased such
that the mount is working against gravity. I am suspecting that
there is some debris on the worm gear but not on the worm itself
as I don't see any periodic issues.
Is there a pdf that shows how to disassemble to mount to allow me
to inspect the worm gear?
I've worked on CG5 and GM8 mounts, so I think I would be
comfortable inspecting the insides of the Mach 1 too.