Printrbot Jr Y Axis Belt Tensioner
thingiverse
This y-axis end cap substitute for a Printrbot Jr includes a belt tensioner, inspired by designs at http://www.thingiverse.com/thing:10274 and http://www.thingiverse.com/thing:13479. The .stl file is exported from the .scad file designed for 6-34 screws and nuts; adjustments can be made if needed. Assemble it with four (4) screws and three (3) nuts, using shapes.scad for hexagon() module. Still calibrating my Printrbot Jr, so please comment below with any necessary adjustments.
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