TinyRM - Smallest possible filament run-out monitor

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3804809.

This is yet another optical filament run-out monitor/sensor, which I've tried to make as small and lightweight yet reliable as possible. I got it down to a size of 37 x 25 x 12.5 mm.

It features some very small Neodymium magnets, which are acting as spring replacement for the lever.

Here's a video of it in action: https://www.youtube.com/watch?v=ADsNyAwer2s

BOM:

4 x Neodymium disc magnet, 3 mm in diameter, 1 mm thick 2 x Philips screws 2.2 mm by 6.5 mm

Folks from the EU can get those magnets here: https://www.supermagnete.at/eng/disc-magnets-neodymium/disc-magnet-3mm-1mm_S-03-01-N

Added the STEP file in case you want to modify / remix it.