Filament Runout Sensor for MM3 / UltiMachine RAMBo or Mini RAMBo

thingiverse

A versatile filament runout sensor designed for printers equipped with RAMBo / Mini RAMBo boards, or for users who can repurpose their existing endstops. This innovative part is specifically tailored to work seamlessly on an MTW MendelMax 3 setup, but I've included the .STEP and Fusion 360 files to enable anyone to make necessary modifications. Notably, this sensor supports 1.75mm filament, although you may need to fine-tune the endstop for optimal performance. **Essential Precautions:** Before installing and utilizing this filament runout sensor on your printer, ensure it's fully assembled and test-run with spare filament to guarantee that it clicks on exclusively when the filament is completely inserted and clicks off solely when the filament is removed entirely. To achieve precise alignment, you can carefully bend the arm of the endstop using pliers to adjust the gap, and make sure the screws securing the endstop within the printed part are firmly tightened.