Eye Exercise Trainer

I was told by my eye doctor that this might help to get my eyes working together.
Now, I am not a doctor. I do not guarantee that this will work.

This needs a Large Format Printer as it is about 320 mm in diameter
Parts:
608ZC3 roller skate bearing
8 mm threaded shaft with nut (or 5/16" with nut)
cardboard to mount yellow disk, black strip, and red dot.
glue to attach to cardboard.
(you can see the glue thru the yellow circle- oh well!)
You need 4 of the Frame Clips.

All you do is