Printrbot Jr. Belt Tensioner

by 3d0g, published

Printrbot Jr. Belt Tensioner by 3d0g Mar 14, 2013
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4090Views 617Downloads Found in 3D Printer Accessories


Yup. Another tensioner. Except this one's really simple. And small. And bullet-proof. This one simple piece works for both the X and Y belts on the Jr. and probably any other printer that uses .2" pitch 1/4" width timing belts.


Grab a bag of #4-40 x 1" machine screws/nuts from Home depot. Press-fit the nuts and thread the screws through the tensioner and captive nuts. Pull belt taught and press the tensioner on. Fit will be snug. Fine-tune the tension via the screws. Play Deliverance on your now banjo-tight Printrbot belts.

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Something seems to be wrong with this file. I've downloaded it twice and can't get it to open in either tinkercad or Makerbot software.

Just downloaded it and imported into tinkercad just fine foureyes.

This thing is genius. Thank you for your contribution.

Glad you like ramai!