Finally I had time to finish this video about small and easy to build air bearing pads. The video contains a complete guide to build your own pads.

The CAD models are now available on my Github: https://github.com/0x23/openairbear...
You will find ready to print .obj files for 1 inch pads there too (steel_epoxy_pads).

Chapters:
00:00 Intro
00:40 How air bearings work
02:43 Tools & materials
06:41 Design considerations
07:42 Bearing surface molding
17:31 Channel scoring
23:18 Restrictor nozzle
28:21 Demonstration