Product description
The Duet3D Rotating Magnet Filament Monitor very accurately senses filament movement in your 3D printer. Connect it to a Duet 2 or Duet 3 and the controller will use the indicated movement to determine a wide range of extrusion issues and take appropriate action. The module is pre-assembled for your convenience and can be connected using 2/4mm bowden tube (not included) to your extruder.
The sensor can detect multiple issues, including:
- Filament run out
- Extruder skipping steps
- Nozzle starting to jam (causing skipped steps or grinding)
- Filament beginning to grind in the extruder
It does this so accurately because it is effectively an extruder in reverse. The filament movement rotates a custom machined hobbed magnet assembly; the magnet rotation is sensed and constantly reported to the Duet.This method has proven extremely accurate across a wide range of filaments – frequently capable of pausing the print before a filament jam or other issue has already caused the print to fail.