Frame Mount Filament Runout Sensor  Filament Guide
Free     Printables     Firehammer Designs

Frame Mount Filament Runout Sensor + Filament Guide

I was inspired by Michael over at Teaching tech with his filament sensor video Check out his setup in the description models ...

similar models —

Frame Mount Filament Runout Sensor + Filament Guide alternatives
Filament guide
GerryPB