CaliCross: A Handy Tool for 3D Printer Dimensional Accuracy

What this does Helps you correct XY print scaling issues methodically and repeatably instead of guessing or coarse whole-object scaling. Works for Z too (though this tends to be less of a problem with FDM printers). Gives you an easy way to calculate the proper XY Shrinkage % in OrcaSlicer's per-filament settings: Or, equivalently Scale % in PrusaSlicer (per object): Background One of the most important aspects of calibration is the dimensional accuracy of your prints, which means that the dimensions of your printed objects match the dimensions of your 3D models. However, calibrating the dimensional accuracy can be tricky and calibration cubes are single coarse measurement tools that are subject to measurement error. Thankfully, modern slicers like OrcaSlicer give us ways to fix common XY dimensional accuracy issues for a given filament (like ABS/ASA) and printer without having to mess with extrusion multiplier/flow (which can ruin surface finish) and without resorting to other tricks.