About this 3D model
Perpetual Calendar I designed with inspiration from https://etsy.me/34WZkCE all credit for the idea goes to them, but I decided to make my own version of it that I could 3D Print. The pieces should fit on a CR10 or other 300X300 mm printer, but if not just scale it down. But be careful not to make it too small or else the text for the dates will not be readable.