Anet-A8-Runout-Sensor
thingiverse
This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/8TA1o3oWQaPI purchased a Runout sensor on Aliexpress "3D Printer Filament Break Detection Module With 1M Cable Run-Out Sensor Material Runout Detector For Ender 3 CR10 3D Printer"Two wire connection to my BTT SKR Mini E3 V3 motherboard.Used this simple mount on the top rail just under my spool of filament.
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