I am interested in knowing this as well. Even with the worms meshed and no looseness in the spur gear, what is the DEC backlash one should expect. I see chopped traingular trace with PEMpro backlash

Congrats Walter. Spectacular images!! Parijat

I decided to adjust my AP1200 (2011 model) DEC worm mesh based on these instructions. http://www.astro-physics.com/tech_support/mounts/1200gto/1200backlash2.pdf The middle socket head screw that

Great first image with the Mach1. Robert

Amazing images!!! While most of us stare skyward at objects billions of miles away, Walter has captured something just as beautiful right here on the "little blue marble". Great job and please pass

Amazing detail and depth! No small wonder:) -Steve

Amazing stuff! Gratz to Wally on his achievement. Best Joe

Wow, just wow! Harold

Very nice Adam. The star colors look great and very round. You should not have any problems with OAG. My last imaging was 30 minute subs with OAG and didn't throw out one single sub thanks to my

I had my first imaging outing with my new Mach 1 as well as the 8" Edge. Everything went smoothly with the exception of some drift that I believe is due to my piggyback setup. Until I get an OAG,

I know this is off-topic, but I have to share this with all of you. When Walter is not building mounts here at AP, he takes photos of very tiny life forms and has developed some truly outstanding

Hi Marc, in case, check also the preload bearings of the worm shaft. Unless I am wrong, 16 arcs gives about a 1s tracking delay, which seems acceptable and not really a problem while autoguiding. I

Beautiful result, Eric! As I have said before, there is no substitude for dark skies. Anthony. ???? 10/23/2012 06:07, ?/? Eric ??????:

Excellent !! One of the best I've seen. John T Scottsdale Az [Non-text portions of this message have been removed]

Hi I am just back from a small star party under extremely clear skies in southern Poland. The sky was crystal clear but large temperature drops in relatively humid air caused heavy dew. At the end

I hope it's clear that Adam said that "the tables have turned", not I! I greatly prefer servo motors over hot, inefficient steppers and also think that the choice of RS-232 is a sound one, for now

Your M31 is beautiful. Robert

Hello all, I haven't been active on the DSO imaging groups lately. I still have a bit of a backlog to work through, and was also distracted by the solar events of May and June (my apologies to those

Obviously I agree - in fact the APCC has been described here several times as a software/hardware solution.

What about those of us attended AIC? Can we bring our control box and get eproms installed? Larry