Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4712966.
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
Bill of Materials 1 - 608 Skateboard Bearing : https://amzn.to/3oyXzEV 2 - M3 8MM Screws : https://amzn.to/3bgc8Jq 1 - M3 6mm Screw: https://amzn.to/3bgc8Jq 2 - M10 Press Fit Fittings: https://amzn.to/390PWQI 1 - Small Rubber Band 1 - Optical Filament Sensor: https://amzn.to/3nm6zf0 8 - 6mm x 3mm Magnets: https://amzn.to/2MFK4oK
Some short lengths of bowden depending on your build https://amzn.to/393qbzo
Links to Download models of the project.
https://a360.co/36g9PmD - Case back https://a360.co/39IIOc4 - Encoder Bearing https://a360.co/39Tvz8u - Case Cover https://a360.co/3p6UoUU - Case Cover Slanted
When it comes to hardware, I rely heavily on Bambu Lab 3D printers. My A1 Mini https://rb.gy/uofj5 is a staple in my office, while my fleet of X1C Carbons https://rb.gy/9r2az ensures rapid and high-quality production. #ComissionsEarned which help support my free model development.
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