Ender 3 (Pro) Filament Runout Sensor V1

thingiverse

Since I recently mounted a BLTouch on my Ender 3 Pro, the mechanical Z-axis end switch is no longer needed by me. It has now been converted into a filament runout sensor and a small housing has been designed for it. The case does not have any special mounting possibility at the moment because I am still unsure where I will finally mount the device. At present, it has simply been fixed with adhesive tape on top of the horizontal frame. For the electrical connection to the mainboard of the printer and the necessary adjustments in Marlin, I recommend the corresponding video by Teaching Tech: https://youtu.be/gwHpXaj. Two short pieces of PTFE tubing are required to guide the filament. A slightly longer one is needed on the left side on the "input side." It is recommended to bevel this a little on the side that comes into the housing (see photo). A very short piece is sufficient for the "output side" - in the end only as long as the wall is thick. Otherwise, four short M3 screws are needed: two to fix the small circuit board in the case and two to fix the cover. __Please post your make. Thank you. __