About this 3D model
This is a small paint aid. I used a standard 608 ZZ (8x22x7) bearing. For example: https://www.amazon.de/HonLena-Kugellager-Shielded-Rillenkugellager-Skateboard/dp/B08K936Y1Z/ref=zg_bs_g_452715031_sccl_1/259-8663548-6453021?psc=1 However, it was printed on a Sidewinder X1. This has a print bed of 300x310 mm. The table arms have a diameter of 300 mm. I applied some Armaflex adhesive tape (for pipe insulation) to the top surface to prevent slippage. Have fun with it