XYZ 20mm calibration cube

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This is a basic test cube for calibrating your 3D printer with X, Y & Z marked on the axes. To further fine-tune your 3D printer print out this model and measure its dimensions against what they're supposed to be. Once you've done that, if your 3D printer allows it, adjust your Steps per mm in your printers software. if: e = expected dimension o = observed dimension s = current number of steps per mm then: (e/o) x s = your new number of steps per mm As an added bonus this guide shows you how to create a 3D printer calibration cube using Freecad (https://www.idig3dprinting.co.uk/news/how-to-guides/create-a-3d-printer-calibration-cube-in-freecad/). So why not try making your own!