Atmega8A-PU filament monitor with optical encoder for Marlin firmware v2

thingiverse

Atmega8A-PU filament monitor with optical encoder for Marlin 1.1.x firmware second version. This is the second version of https://www.thingiverse.com/thing:2262683 For this version i used parts from an old ball mouse: one encoder wheel and infrared emitter & receiver. To facilitate filament movement i used 2 small pieces of ptfe tubing. I splitted the monitor in 2 parts, one which can be attached to extruder and one which contain the monitor and can be mounted to the frame, for multiple use cases. In my case sensor_support file was used to attach the monitor to "Infill 3D 75 Geared Extruder" https://www.thingiverse.com/thing:443849 The sensor_case_filament_guide & sensor_case_support are not required, their are just examples of how the filament case can be used. Also sensor_wheel should be adjusted to your particular case.