
6mm Belt Tensioner
thingiverse
This belt tensioner was designed for my CNC. It attaches very nicely to the end of 4020, 6020, etc aluminum extrusion. The hardware needed is 3 M5 socket head screws and 4 M3 20mm socket head bolts with 4 M3 nuts. Mine are printed out of PLA which works fine but don't stretch the belt too far or it will break.
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