MMU2 PTFE PC4M6 Coupler

thingiverse

For easy access to the filament while it's loaded in the PTFE tubes I really liked the Prusa MMU2 PTFE Holder M10 Passthrough Adapter, but in my own setup I just can't reach the back of the MMU2S unit very easily. So I decided to move the point of access for the filament further down away from the unit and use some PC4-M6 tube fittings. The original coupler works great already, but I needed it to be somewhat bigger and made some windows in it so I can actually see the filament inside. Since this coupler sits at a point where the filament has already passed when loaded, it's not necessary to insert a piece of PTFE tube into the coupler itself. The windows also allow me to put an occasional drop of oil on the filament. ** EDIT ** I don't know why the preview shows a render error. The thingiverse view doesn't imply that there is a problem with the model, and slicing with slic3r PE didn't reveal any problems either. Please let me know if you encounter problems slicing this with a different slicer.