Filament sensor
thingiverse
I needed to find a filament sensor that would mount seamlessly on an extruder, so I created my own design that fits perfectly. It relies on this switch: https://www.ebay.co.uk/itm/Long-Hinge-Lever-AC-125V-1A-1NO-1NC-Momentary-SPDT-3-Pins-Micro-Switches/183968686147?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
Download Model from thingiverse
With this file you will be able to print Filament sensor with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Filament sensor.