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Peter,
Clearly the PEC is bugged and is not working. I would try Pempro. I know Chris Venter did this when he hit a wall with SB PEC and it worked fine.
PEC did not work on my PEC on the first few goes. I updated with a later build and it worked. I did a 20 minute PEC run done in good seeing at my dark site.
Sometimes later builds cause things that were fixed to unfix. Not sure if this is one of those cases.
The PMX is a great mount but it really is a bit of pain in the a...
When it works its great, but its fussy, a little temperamental and a little fragile. I lightly bumped into the counterweight shaft the trip before last. It had been guiding beautifully on the 2 nights preceding. I started getting backlash and oscillating corrections (large positive to negative swings). I knew from having this happen before the tensioning screw must have been loose.
I found the cam pin had popped up and was loose again. Once reset it all worked again (3rd or 4th time I have had to adjust it). So PMX is weakly engineered in some regards - lovely when it works but too fragile. Should have gotten an AP1200.
Greg.
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