SeeMeCnc-Artemis-Duet3D Filament Runout Sensor Housing ($5 cost)
thingiverse
This design was created by Chris Riley, also known as BrotherChris. He intended it as an indirect sensor for detecting runout on the Prusa MK2.5. I was impressed with the design and brought it into Fusion. To better suit my needs, I scaled down the Ball Bearing from 10mm to 7mm - a size that's consistent with what Prusa uses. I also modified this setup to work seamlessly with the SeeMeCNC EZR Extruder. Additionally, I optimized the internal path for the filament to include a chamfer that assists in retraction after triggering the sensing mechanism.
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