This is an open source Filament Runout Encoder which detects filament jams in addition to filament runout. You only need a few parts for this project most of which can be found in your shop already.

You can watch the video on how to assemble it here: [https://youtu.be/v2mQ4X1J3cs](https://youtu.be/v2mQ4X1J3cs)

Bill of Materials
1 - 608 Skateboard Bearing
2 - M3 8MM Screws
1 - M3 6mm Screw
2 - M10 Press Fit Fittings
1 - Small Rubber Band
1 - Optical Filament Sensor
8 - 6mm x 3mm Magnets

Some short lengths of bowden depending on your build [https://amzn.to/393qbzo](https://amzn.to/393qbzo)

Links to Download models of the project.

Case back
Encoder Bearing
Case Cover
Case Cover Slanted

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