Re: G11G First Night - Not So Good
|
Hi Rick
I'm a little confused about what you have here - are you measuring periodic error correction while guiding?
if you are not doing PE correction, then the PEMPro log viewer is not a good way to view your results. use the PHD Log viewer instead.?
i don't know how you are going about this, but there's a number of things you mention that are not correct
- you do not need to remove the motors to adjust the worms, and adjusting the worms is probably not necessary for what you are trying to do right now anyways
(the following only applies if you are doing PE correction)
- PEC correction is only for RA, it has nothing to do with DEC
- your initial PEMPro PE run (uncorrected) looks on the good side of pretty typical:?+/- 4" (the mount is spec'd at?+/-5")
- the correction run (second run?) looks bad. What fitting algorithm did you use?
Again, if I misunderstood what you are doing, my apologies, and use PHD log viewer instead
Here are a couple of shots using PEMPro Viewer to show last nights initial run with a new G11G. The first one was good in DEC and not bad in RA. Then tings got bad with the RA by the end of the night. Huge deviations at exactly 1/2 worm period. Anyone else seen this before.
This morning I redid all of worm adjustments as per the video on YouTube. Discovered you must remove the motors so you can feel the drag when adjusting the last screw that pulls the worm back from the gear.
Also if Losmandy is reading these please mill some slots down the sides of the the motor heat sinks to get better access to the mounting screws.
Guiding is PHD2 with a ZWO ASI290mm on their 60mm guide scope. This is solidly mounted on top of a C8 and has usually produced? .9 to 1.5rms with a CGEM mount.
Rick
-- Brian?
Brian Valente portfolio
|
