Makelangelo pen calibrator

Take the fiddling out of getting a marker into your Makelangelo vertical plotter robot *just right*. This handy tool makes it quick, easy, and perfect every time.

Fit the cap over the wide end of the Makelangelo plotter.
Insert a marker until it touches the calibrator.
Tighten the screw against the marker.
Remove the calibrator until next time.

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