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Calibration Cube, 20 mm
A simple 20 mm calibration without the "Z" on its top3D printer parts and enhancements
Creative Commons Public Domain Dedication
All rights to this work are waived and you can use it however you please.
A simple 20 mm calibration without the "Z" on its top. Instead, it says "N", which stands for a "Normal".
There is also a FreeCAD source attached, so you could easily resize or tune the thing using the original guide.