Optical Runout Sensor for Ender 3

This is an enclosure for optical sensor. It's made to mount on the creality runout sensor bracket. the creality sensor is just a switch and I had issues with the filament wearing down the switch roller. so made a contactless version.

Did have to make a modification of sticking some paper to the light emitter with some stick glue as light/transparent filaments wouldn't block the light fully. Otherwise this works flawlessly.

Will require some boden tubing and screw thing to hold boden tube.

In pictures, you can see it. On the side that goes to the extruder gear. I used a round adapter (File "Threaded Hole Insert") that i printed to hold the tube as the gear side already had a screw thing to guide it through. and there wasn't a lot of space for another one. I think I glued the adapter in. not sure.

This has been much better than the physical switch style.
I find it easier to thread in than the conventional one for this printer. however, when the filament runs out and it backs it out. it can sometimes back it out up into the enclosure which can be a hassle.