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So here's the update....

In practice the prototype is working nicely. However it can only pulley up to 2 lbs before the motor/mover starts to hesitate and the pulley starts to push in towards the telescope. I'd like to be able to have it lift at least 20 lbs. The motor/mover unit is able to hold 75 lbs from the bottom.  I feel like some hurdles have been overcome but not seeing how to get past the weight issue. Two motors instead of one motor and one pulley would probably help create more resistance but probably not enough.

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