1cm calibration cube with lettered faces
thingiverse
Having churned out numerous 1cm calibration cubes, I've encountered the frustrating issue of not being able to determine which side is facing up when taking measurements after making adjustments (only on the x/y axis). Consequently, I fabricated a cube with letters etched onto each face. T represents top, G denotes ground, F signifies front, B indicates back, L stands for left, and R means right. The letters are approximately 2 mm deep. Here's How It Was Done I utilized OpenSCAD.
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