Working notes on my Electronic leadscrew

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Rough design info and some of my thought processes whilst designing this gizmo. I have probably altered some of the ideas to improve functionality and ease of use. Video at

http://vimeo.com/18780151

with additional pictures at

http://s917.photobucket.com/albums/ad19/picclock/Cheapo Electronic Leadscrew/

Thanks for your interest

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View attachment Cheapo_ELS_info.pdf