Simple fillament movement sensor

Discussions regarding fillament jams lead me to draw and print a really very simple fillament movement senzor.

Bondtech gear movement indicator in the fillament jam situation does not show you, whether the fillament moves, the fillament movement indicator does.

Apart of the printed parts you will need a small rubber ring (I have bought a box of spare rings in Lidls shop) to put on leading wheel for better adhesion to fillament.

Mount : very simple before loading the filament to the extruder pull it through twoo holes and that´s it.
Note: take care of correct wheels positioning on rodes.

Print instructions

Wheels at least the leading one print with supports and the small one with brim.