Filament (1.75 mm) end sensor microswitch

=============================================== !! Work In Progress !! - not tested with 3d printer. tjb1 wrote in comment: "You may have an issue with the filament wearing a groove into the button over time causing inconsistent readings." I think that's true. Must redesign enclosure to use microswitch with simple metal tab or with roller tab. =============================================== This is an enclosure for microswitch. It provides path for 1,75 filament. Microswitch opens when the filament is not present inside. Provided STL and FreeCAD source file for editing. In the picture is earlier version, but it does not differ much from the attached newer files.