Calibration cube

thingiverse

I've been working on a project to encapsulate the essence of my ongoing struggles within a precise framework. The dimensions I'm aiming for are a perfect cube, measuring 3 centimeters by 3 centimeters by 3 centimeters. To achieve this, I need to ensure that the material's thickness is consistently at 2 millimeters. Additionally, I'm considering incorporating a circular feature with a diameter of 15 millimeters.