GT2 Belt tensioner for a Printrbot JR
Description
Since I Didn'T Really Like Any Of The Existing Belt Tensioner Solutions I Came Up With My Own. I Wanted Something That Was Not Too Big And Also Looked Decent And Was Easy To Operate. So I Think I Have Met All Three Requirements. For This Thing You Also Need A Thumb Screw So I Took It From Another Thing; Http://Www.Thingiverse.Com/Thing:16428 But Feel Free To Use Anything You Like. The Nut And Bolt Are M3 (Metric) And The Bolt Is 20 Mm Long. Btw: For The Belt To Clamp Inside The Little Retainer I Used A Piece Of Filament Cut To The Right Size.
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