Filament width sensor (hall sensors)

thingiverse

The concept is based on https://www.thingiverse.com/thing:4138933. To create a version one sensor, you'll need: 2 small 623ZZ bearings (outer diameter:10mm, inner diameter: 3mm, width:4mm) 2 small M3 washers (a washer goes under the bearing) 6 M3x8 screws a spring from an automatic pen a 4Pin right angle male terminal 2 ss49e hall sensors one 5x2mm magnet wires some tube connectors The sensors are placed in the same manner as in the original design. For configuration and calibration information, please refer to the original thing. I've connected it to a BTT SKR V1.4 TFT socket (sensor1 -> RX0, sensor2 -> TX0, GND -> GND). ADC ports: P0.3, P0.2 Power for the sensors is taken from a WiFi socket (3.3V). A smaller version, V3 of this sensor has been created. Instead of bearings, it uses 2pcs 5x8mm rollers (roller bearing rolling element). STL files for that design will have the suffix V3. Everything else remains unchanged. Enjoy!