Advanced 3D Printer Calibration System

Calibration support for Cura's new hole expansion parameter has been added.

This is a set of calibration objects for advanced 3D printer calibration of extruder flow, extruder and axis step values, and axis scaling to compensate for shrinkage of the print when it cools. This process assumes you already have your best nozzle temperature and print speed figured out. There are already numerous options for doing that out there, and I didn't see much value in reinventing the wheel.

If you have multiple printers, save a separate copy of the spreadsheet for each printer, so that the proper step values will be calculated for each printer. Doing so will make it more likely a single profile will work with multiple printers.

Tab 1:
Start by printing the flow calibrator matching your nozzle diameter with a skirt or brim, and measure the skirt or brim every 3-5 millimeters. Enter the measurements in tab 1, along with your current printer Z offset, to calculate the correct Z offset.

Hin