[g__day (Matthew)]

Guys and gals,

I'm interested in your suggestions as to how to reduce my set-up's wobble during focus adjustment / general viewing factor. I definitely feel the mount to dovetail attachment is fine, but the dovetail to OTA attachment is a bit under capacity and risky. I ponder maybe a better (more rigid) dovetail bar with the appropriate rings would work better; especially seeing I have a 80mm Meg piggy backed. See attached piccys:

The basic set-up is okay, but I first noticed when you tried to adjust focus using the Celestron's primary mirror focusing knob there was "alot" of jiggling in the image - enough to make achieving best focus hard. I eventually side-stepped this by moving to a Meade 1209 motorised focuser.

But I still feel the scope to mount's dovetail attachment design is allowing the wobble. Although the CG5 attachment bar is rigidly held by the mount, push even gently on the top of the scope and it will move and vibrate freely a millimetre or two. Also the CG5 dovetail bar attaches to the OTA by only three little bolts, carrying alot of weight, so it would probably be a much better and safer idea if the bar was firmly holding two (or three) appropriately sized O rings - around 10", and these held the OTA to the mounting bar, rather than three little screws from the mounting bar into the OTA itself.

What are people's observations and suggestions please? Should I just buy two or three rings and mount the OTA to these and firmly attach these to the CG5 dovetail bar for instance?

Many thanks!