Thanks for comments guys. As Peter said most were hand driven. To much hassle adapting a motor. Like I said ,with the audible timer going ding every 15 secs it's easy enough to move the handle quarter turn every ding. That will keep it locked on to the stars for a good 10 to 15 minutes before the tangent error creeps in, and you have to reset. 10 mins is good enough exposure. It'll be interesting.
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