Sam's Gears Add-ons

I'm very much a beginner with 3d design. I've uploaded my FreeCAD files in case someone can make them better.

Here's some info about the parts

Fans: Wanted something for the gears to "do". They don't move much air, but if you get a good gear ratio going you can feel some air moving.

3cm reinforced peg: My son has broken several of the pegs that go into the plates. This design is intended to to be stronger. Since there is virtually no flex in the pieces I had to scale them down to fit in the holes. So there may be a bit more wobble. Only did the 3cm peg since it can accomplish anything the other can, but if there's interest I can do it for the other sizes.

Glue in Peg: This is intended to make gears for younger children. To add this to a gear hold something flat over the peg hole. A pencil worked for me. Add glue to the glue-in-peg and push it up to your stopper. I used superglue. The v5 peg is my preferred peg. Its intended to hold the gear just a tiny bit above plate so th