Revolving Camera Bracket for EOS 6D

Assemble instraction:
https://www.youtube.com/watch?v=WM1zO60eTXc

Operation demonstration:
https://youtu.be/FqoqVpF24s4

Outer & Inner ring (PETG, Upside down from the picture, support required)
Base ring (PETG, Upside down from the picture, )
Hole cover (PETG, Upside down from the picture, support required)
Knob (TPU is better but PETG ok)

L-Shaped Plate
https://www.banggood.com/ja/Universal-MPU100-Aluminum-Alloy-Quick-Release-L-Plate-Bracket-for-Camera-Benro-Arca-Swiss-p-1082917.html?cur_warehouse=CN&rmmds=search
Arca Clamp
M6 cosmetic screw knurled type x 1
4mm steel ball x 94
M3 hex head screw 20mm x 3
M3 hex head screw 16mm x 1
M3 hex head screw 6mm x 4
M3 nut x 3
Plastic intermetallic grease