Ender 3 Filament Guide and Runout Sensor

thingiverse

Remix of my runout sensor container with a filament guide tailored specifically for the Ender 3. To adapt this design when switching to an ABL, simply repurpose your Z limit switch as a reliable filament runout sensor. Utilizing stock parts such as a skateboard wheel bearing and a connector is necessary, depending on how you choose to connect the limit switch to either a mainboard or raspberry pi for effective filament runout detection management. You will need to print the spacers and ring from the linked remix of https://www.thingiverse.com/thing:3052488 in addition to what's outlined here. After extensive use, I've identified a couple areas that require refinement in the design. Firstly, filament catches can cause the sensor to unexpectedly pop open. To address this issue, I plan to incorporate a recess to easily secure a zip tie and prevent this from happening or add m3 holes to provide a solid connection between the two parts. Additionally, I'm considering adding a mechanism to lock the sensor onto the mount for extra stability. Furthermore, incorporating a cable tie system would also be beneficial.