Optical Endstop Smart Filament Sensor

thingiverse

I've been wanting a runout sensor forever and I finally designed my own. This is a hybrid inspired by what others in the BLV asnd Hevort communities have made. My main design goals: * Limited/affordable BOM * Adjustable tension, one problem with many smart filament sensors is that they put too much drag on the filament, or not enough and they're not able to read any pulses. This sensor has a "lead screw" that allows adjusting how much tension is put on the wheel by the filament. * The encoder wheel should properly spin on bearings BOM 2x M3x40mm 2x M3 nyloc nuts 2x M3x5mm 2x M3 nuts V-roller wheel (or print it from tpu, pla or otherwise might work) 2x F623 bearings Lerdge optical end stop For mounting: 2x M3x8mm 2x M3 t-nuts My current configuration in RRF to support this, but not yet fully tuned: M591 D0 P7 C"^io3.in" S1 R70:170 E11.445 A0 L3.815