Extruder Rotation Visualizer for Prusa i3

Your printer, running the way it should.

21k downloads in the maker community

$14.06

Color: Gray

Printed in the USA when you order.

1.You order it
2.We print it fresh
3.It ships to you

Real-time extruder motor movement indicator for Prusa MK2 and MK3
Quick-print design—minimal printing time required
Visual feedback helps diagnose extruder issues and monitor performance
Inspired by Peter Roodenburg's indicator concept

The Extruder Rotation Visualizer is a compact 3D-printed accessory that mounts to your Prusa i3 extruder motor to display real-time rotation. This visual indicator lets you quickly verify that your extruder is turning as expected during print startup and operation, making it an invaluable diagnostic tool for troubleshooting extrusion problems and monitoring motor movement at a glance.

Designed to be fast and easy to print, this accessory fits seamlessly into your Prusa workflow. Simply install it on your extruder and gain instant visual feedback on motor activity. Multiple design variations are available, so you can choose the style that works best for your setup.

Compatible with Original Prusa i3 MK2 and MK3 models. Learn more about this indicator and see it in action on Prusaprinters.org and YouTube. Not affiliated with, endorsed by, or sponsored by Prusa. Prusa and its product names are trademarks of their respective owners.