Ender 3 V3 KE/SE Filament Sensor Head Mount

Mount without "arms"

Quite similar to existing mounts, but offers 2x ⌀2mm screw mounts at filament inlet and outlet (Filament guide to the extruder).

Designed so that both original screws can be used.

Mount with "arms"

I modeled this mount in the good faith that the arms going to the rear screws will strengthen the mount structure and thus improve its durability against forward and backward stresses... In the end, however, they make assembly more difficult and complicate the printing of the whole mount (you can't do it without supports).

This model is probably most useful for measuring spacing and dimensions (you won't have to measure them on a printer).

Designed so that all original screws can be used.

Filament guide (to the extruder)

The guide has been modeled so that the filament sensor outlet is directly above the inlet of the extruder, this small model ensures that the filament does not bend and jam before entering the extruder.

Onshape document link

Installation

There are many installation instructuins out there describing the process much better than I could, just have to recommend moving the cable from the top to go along the print head cable, it looks much better.

Also, the sensor should not lean backwards, that is just because my print f***ed up and unsticked partially in the middle of printing (have to tune my printer settings again…)

I had planned to make a 4x PTFE tube joiner at the top of the model for my upcoming project with 3D Chameleon, but I didn't finish it as I plan to make my own, smaller filament sensor to be only 1cm tall.