Inspired by Kallisti’s work on the cool fidget toys I ordered some bearings with the intention of making some stocking stuffers. I started with a simple design I’d seen before, just a triangular design with bearings at each point and in the center. A friend at work actually beat me to it and made one the day before I got my bearings in the mail so I was able to use his design to work out the details like what size holes I needed to counter the kerf of the laser. I cut a couple of sample holes and finally got one that fit well on my third try.
Happy with the symmetry and the size, I decided to make something more seasonal. I took the same hole pattern and designed a snowflake with 6 points, 3 of which would hold weights. I didn’t want to waste bearings for weight (I only have 8 to work with) so I decided to use some old pachinko balls I had lying around (they were actually too big for my pachinko machines and jam the mechanisms). I took a quick measurement with the calipers and used the same kerf I’d worked out for the bearing hole and it worked pretty well.
Naturally, my daughter jumped on the bandwagon as well and found a cat snowflake design that she based her design on.
They’re fun little toys. I tried printing a few more of the snowflakes and some of them cracked while setting the pachinko balls in them so I probably need to go a bit larger.