Filament Calibration Jig for Prusa i3 Mk3

thingiverse

Here's another filament calibration jig, specifically designed for the genuine Prusa i3 Mk3. The bottom piece slides over and firmly secures onto the small filament guide at the top of the extruder assembly (see photo). This jig ultimately proved unnecessary, as my test results revealed that Prusa has the extruder meticulously calibrated right out of the factory, but I'm sharing it anyway.