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Guys
I have a DX2 crayford from JMI and it is great. If I extend the focuser out in the proper method and then try and push the drawtube back in it doesn't move unless I apply a reasonable amount of force. It will not move if you just bump it or touch it with your hand and it won't move in use if you bump your eye up against the eyepiece. I guess the friction force from the various rollers on the drawtube is enough to hold it in place.
I have found the focusing with this focuser much easier than with my other rack and pinion focusers.
If your focuser has gears (and I'm not an expert) then I would be questioning it being called a true crayford. If it is "crayford like" then it might use rollers at the top and still employ the r&p gears at the bottom. What do the focusers referred to as crayfords that come with the GS scope upgrades look like?
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