Prusa MK3s Y belt tensioner
thingiverse
Redesigned prusas belt tensioner to get it more rigid and stop flexing. the tension bolt has been moved to the underside of the belt to hold the 2 pieces better together. this design is boxed so the belt goes trough a hole instead of the open slot on the stock item so it wont flex and bend with time. no extra hardware is needed. this is a true "bolt on" i printed this one on a prusa MK3S with addnorth adura x, 0.20mm layerheight and 3 perimiters, 0,4mm nozzle. i guess that petg will do just fine
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