Filament Runout Sensor Enclosure (Micro-Switch)

This is filament sensor enclosure. The filament sensor use a PTFE tube to guide the filament. A cut in the PTFE tube expose the filament to a micro-switch with ball bearing. This should keep the friction to the filament to minimum even during retraction. This is thought to be mounted on a BMG extruder with the PTFE tube going in the PTFE coupling. The sensor is light enough to not cause any trouble. 2nd version: switched to OpenSCAD and added the source. Added a blocker for the PTFE tube so it does not slide out of the box. Print Settings Printer Brand: Creality Printer: Ender 3Rafts: No Supports: NoResolution: 0.2 Infill: 10% Filament: Das Filament PLA Black Notes: Current version: Recreated the original using OpenSCAD and adapted to hold the PTFE tube and a JST XH connectors. The cover also have a small blocker to prevent the PTFE tube from sliding out. Old version: I modified the original STL using FreeCAD so it can hold a PTFE tube and a JST XH connectors. Category: 3D Printer Acce