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Ender 3 Filament Runout Sensor for Z limit switch

by Xqua

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creality ender 3 Ender3 Ender 3 Filament Sensor limit switch Limit Switch Mount creality ender 3 Ender3 Ender 3 Filament Sensor limit switch Limit Switch Mount

# Filament Runout Sensor

After I installed the BLTouch on my Ender 3 I ended up with the Z Axis limit switch on my hands (becomes quite useless as it's replaced by the BLTouch).
I had seen some design out there of Filament Runout sensors, but most utilized a custom limit switch, and bowden tubing. Moreover, none that I could find had a mount for the Ender 3.

So I used FreeCAD to make myself a filament runout sensor that reuses the Z axis limit switch entirely. What you plug it into (Pin

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