Smart filament sensor & guide (Ender 3 sensor mount)

thingiverse

Inspired from https://www.thingiverse.com/thing:3052488 (sensor mount) Core functionalities: * Designed for 1.75 filament * Only 10mm reaction time needed (maybe less) * Can detect runout & stuck filament Only need few things: * Some optical sensor (this use https://www.lerdge.com/product/detail/LerdgeOptical-Endstop) * Some ball-bearing 8 x 22 x 7 * Some electrical tape to add more friction with the filament * 2 screw (5mm) * 1 screw (3mm) Assembly: * Add some electrical tape on the toothed disk to manage printing precision & friction * Mount ball-bearings on the toothed disk & the simple disk * Assemble the top & base with the 2 5mm screw * Add the sensor mount to it * Add the optical sensor with the 3mm screw * Add the sensor bar below the optical sensor (may need to add something between the sensor and the bar) * Your done Marlin Compilation parameters: * uncomment FILAMENT_RUNOUT_SENSOR * FILAMENT_RUNOUT_DISTANCE_MM == 10 * uncomment FILAMENT_MOTION_SENSOR * uncomment NOZZLE_PARK_FEATURE * uncomment M114_DETAIL * uncomment ADVANCED_PAUSE_FEATURE * compile & your done Now just plug in with your board (**/!\ remember to look at the sensor wires to match VCC/GRD/SIG /!\**) Work perfectly fine on my Ender 3 V2.