Use the F623ZZ bearings from the original siboor cable chain swivel, an m3 heat set and a M3x16 BHCS. Placing the heatset can be a bit tricky, be careful not to damage the swivel.
Print orientation as in the .stl, Voron standard settings. Use supports on the swivel for the cable chain connector. The arm doesn't need supports.
The author remixed this model.
I adapted the cable chain arm so the g2e can be used for the siboor cable chain.