Gear Actuated Filament Marker

a simple contraption to color your filament with markers. put in-line somewhere between your filament and extruder

3D printer parts and enhancements

Creative Commons Public Domain Dedication

All rights to this work are waived and you can use it however you please.

Learn more or download attribution tags


Simply spin the large gear, or hook it up to a motor.

This is designed to accommodate normal sharpie markers, but has never been print-tested.

Designed for 3mm filament (may work with 1.75mm?).



Issues are used to track todos, bugs or requests. To get started, you could create an issue.


Ac80d506490a3b166fc42c21cab7dda9?default=blank&size=40joma added this to the tools collection ago
2a6ce617779e3363b9ae54cd6bda195a?default=blank&size=40MMER1116 added this to the Tool Kit collection ago
Mini poly2nurbee added this to the TO PRINT collection ago
Mini imgChris published this design ago