February 23, 2025
Description
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.
Printer Brand:
Creality
Printer:
Ender 3
No
Supports:
No
0.2
Infill:
10%
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.License:
BY-NC
dmarting
