Filament length counter

DescriptionA spring tensioned filament length counter using a optical rotary encoder that can be hooked up to an arduino. For an upcoming project I needed a way of counting how much filament is being used so I made this optical rotary encoder filament counter. O-rings makes sure the filament doesn't slip over the wheel. An adjustable spring tensioned bearing with only a small gap for the filament to pass thru makes sure the filament is always in contact with the o-rings and in the right position. Printed parts needed to make thisBaseABaseBBearingHolderABearingHolderBSpringStopX2WheelAWheelB Other parts needed8 x Lock nut DIN 985 M32 x Hex nut DIN 934 M32 x Square nut DIN 562 M33 x Screw DIN 912 6 mm M34 x Screw DIN 912 8 mm M32 x Screw Din 912 16 mm M34 x Screw DIN 912 20 mm M31 x Bearing 608-2Z2 x Springs 6 x 19 mm2 x O-ring 35 x 2 mm1 x Optical Rotary Encoder Assembly instructions<table style="border:1px double var(--inp