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Stepper Motor Belt Tensioner

by Silverfire56, published

Stepper Motor Belt Tensioner by Silverfire56 Dec 21, 2012

Description

Confirmed to fit on both X and Y axis of a Thing-O-Matic 3D printer.

HOLE HEIGHT NOT COMPATIBLE WITH ANY OF THE ANCESTORS OF THIS DESIGN.

* Lowered the thickness to not interfere with bolts on the X axis.
* Reduced side thickness to not interfere with X axis walls.
* M4 tensoner screw


Version 2- Cleaned the file up and added slightly more material to improve the strength of the part.

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Instructions

* Print out object at a high infill (i used 60%)
* Ensure hole sizes are correct, drilling any holes if required
* Check that a M4 Bolt fits correctly in the slot
* Tape the any surfaces in contact with motor sliding with kapton tape to reduce friction
* Once ensuring that the part does fit, drill a 4mm hole where the Tensoner bolt meets the wall
* Screw motor in, just tight enough that it still moves by hand
* Use the tensoner bolt to tension the belt. Remember that the tigher it the belt the the more the stepper motor needs to work.
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