Nutating Disk Air Engine

I highly recommend watching the video for more details:
https://www.youtube.com/watch?v=z3x-_-5T9DQ&t=16s

This is an air engine with a nutating disk. It runs on compressed air and starts operating at around 10 psi. A big advantage is that it doesn't have any valves, pistons, or cranks. However, you might face a few challenges during the build that I didn't show in the video.

After you've finished assembling, make sure the output shaft rotates freely and that the disk nutates without getting stuck or rubbing against anything. If there's any jamming, check the clearance between the partition in the engine block-A and the disks—this might require some extra sanding (I had to sand quite a bit, as you can see in the video).

Second, before attaching the top disk, you'll need to secure the bushing with a small ring called a bushing lock. Make sure this is fastened well because it shouldn’t move when you apply air pressure. I wrapped some tape around it first and then slid the bushin