CR10_Filament out switch with guide

I got tired of losing prints from running out of filament, especially filaments that break easily. IsaacMDesign's limit switch mount didn't work for me, so I designed my own, incorporating parts of IM's limit switch box design.

This device bolts to the CR10 control box, under the filament spool bracket. I added a filament guide to help prevent spool jams (another recurring problem).

Procedure: Print the two parts. I use a small support under the overhanging lip of the filament guide, which