With a sticky pad on the platform of my laser engraver, I wanted to make something that I could just drop one disk in after another, and just hit repeat and boom! small scale mass producing without having to align them each time.
I found it much faster. I also cut out the sides, so they are easier to get out.
3 sizes, based on commercially available discs from online and craft stores.
might be tight, but I had no issues. if it is too tight, scale up about 3-5%
too loose, cut a piece of paper to about 2" and use it as a shim.
designed in tinkercad.