MP Select Mini End of Filament Sensor + Filter Combo Mount

thingiverse

For those new to this concept, a filament run-out sensor is simply an SPST switch connected to your printer's board or RaspberryPi for OctoPrint. When the filament runs out, the switch flips open and the print pauses/stops/whatever you need it to. The filament run-out sensor alarm is made possible by combining two products: "Filament Run-Out Sensor Alarm" by Elproducts and "MP Select Mini Filter & Guide, Aligned" by sully898. This setup allows for a simple yet effective way to detect when the filament runs out and pause or stop the print accordingly. It's worth noting that using the stock spool holder with this part is not recommended. Having the spool at a 90-degree angle puts excessive lateral tension on the part, which can cause kinking of the filament.