3D Printer Calibration Piece

This is a calibration clip to thermally calibrate your roll of filament for printing objects with a 0.2mm clearance or within a 0.1mm tolerance. Thermal calibration compensates for the expansion and shrinkage of the filament as it melts, extrudes, and then cools. This calibrated diameter result is much different than the physical measured diameter and can change from one roll of filament to the next.

To use the clips print two of them with one rotated 90 degrees from the other. This will give you a test fit with one feature printed in X and the matching feature printed in Y. When fitting them together flip one upside down so that the squish layers (sides touching the bed) are facing out. You do not want to calibrate to the squish layer. The surfaces of the clips will not be flush and the fit should be easy. Not too tight or too loose. Keep reading to see how to adjust the fit.

The first step is to determine the optimal temperature for your filament. You can do this without having