Ouch!!!
This definately belongs in "Beginners Equipment Discussion"... as is shows how a beginner, me, can almost destroy his equipment!!!
I was having my second crack at a drift alignment with my wedge on my LX90 last night... lovely warm evening to be outdoors, and a nice viryaully cloudless night.
Well, I have to say, the drift alignment went really well... huge improvement on my first effort. Had that sucker of a star sitting so still you would have thought is was a spec of paint on my lens! Was feeling awfully pleased with myself.
I had been doing the drift alignment via my Canon EOS 60D, and the Backyard EOS software package that brings up the nice double cross hairs to help out on this respect. Happy as Larry with my alignment, thought I'd prove to myself how good it was by going back to Polar Home and re-doing the easy alignment.
Note to self. You MUST close the swivel LCD screen on the back of the 60D BEFORE going back to the Polar Home position. The camera normally can fit between the scope and the base of the unit. But NOT with the LCD screen folded out.
Camera Clash!!!!!
Oh the noise was damn awful!!! The stress on the poor little LCD screen... not sure how it didnt snap! The gears crunching and jumping!!! The panic on my face!
Stopped the scope once I realised what was going on... which never having happened to me before took a moment... and then slowly, slowly backed the scope up a bit... and turned on my bat-light to survey the damage, expecting to see thing being beyond repair.
To my imense relief, things appear to be undamaged. Camera... scope... both appear ok. HUGE sigh of relief.
Totally screwed up all my hard work on my drift alignment mind... was back to square one on that front....
I am guessing it is a lesson most people learn once.

I can be pretty sure it is never going to happen to me again... the horrid noises still echo in my ears....
Geoff.