Shrink calculator

thingiverse

Note: These tests are not designed to calibrate your printer but rather determine the XY scale factor for your slicer in specific prints that require high precision along one or two dimensions, while being less concerned with other measurements like inner diameters. Read this as: The values obtained from these and similar tests should only provide occasional adjustments to your slicer's XY compensation settings, not final values. To aid in this process, a simple object and an Excel file have been created for calculating STL vs real dimensions, aiming to eventually compensate for X/Y on your slicer. Note that you shouldn't be doing this as the printer should primarily be calibrated based on mechanical/hardware specifications such as pulley and motor specs. However, this approach can help with material tolerances. I was drawn to the original idea but felt it could benefit from a different approach tailored to specific needs: 1) Calculate dimensions for both X and Y axes. 2) Reduce the number of circles since inner diameters cannot be accurately measured with calipers. 3) Limit the maximum length to 145mm, making it measurable with any standard caliper. 4) Calculate three dimensions for each axis: a short, medium, and long one (defaulting to 8, 35, 145). 5) Have the dimensional information printed directly on the object itself. 6) The design can be customized through its SCAD file.