I'm about to embark on building a motorized panohead. With my background in computing I don't see much issues with the electronics and programming logic. What I baffles me is the mechanical support and structure needed.
I have found Sean's very sleek and elegant design and I'm considering adapting it. I noticed several very knowledgeable members here that's why I registered to ask for advice.
A common design for a motorized panohead would be to support the pan rotation fully on the motor. As I'm going to be using a cheap stepper motor, I don't think it's likely to support the mechanical forces. So I'm going to use Sean's thrust bearing design and put the motor on the top. I've rendered my idea in an exploded view in Sketchup:
Essentially I'm attaching the motor's body with M2.5 screws to the horizontal arm, then coupling its shaft to an M8 or M10 bolt or lead screw which is used as the axle. The M2.5 screws would need to be rather long to cover the length of the coupler. Will that be an issue?
Any comments or advice is very much appreciated. Thank you.