35mm Calibration Cube
thingiverse
Run-of-the-mill calibration cube specs include: Cube size: 35x35x35 mm Hole diameter: 15 mm. To use this cube, follow these instructions: Print the cube and compare it to known specifications. It's recommended to measure with a vernier caliper. Use the following formula to calculate new steps per mm (Credit goes to iDig 3Dprinting): If the expected dimension is e and the observed dimension is o, And you are currently using s steps per mm, Then your new number of steps per mm will be ((e-o) * s).
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