You will need:
4 of 4mm x 13mm x 5mm bearings
2 of M4 x 20mm bolts
1 of M4 x 30mm bolt
3 of M4 nuts
4 of M3 x 16mm bolts
4 of M3 nuts
Cork for the coaster (optional)
Files from original model. I only uploaded the ones I modified.
The author remixed this model.
I redesigned the clamp so that one pivot would be integrated into it.
I also cut down the new outer ring to save more space. The old outer ring is removed and the middle ring is now the outer.
The photo has a customization for my friend. I added a strip to hold the text. I've added the stl with the text, please change it if you use that file.