A good to print ball, which prints in two halves and clicks together.

Can be printed with a hole for use as a mould.

I did not find a design here for a ball that is easy to print, so here you can customize one to your liking.

Problem with printing balls as a whole is that you need a raft under it, and even then the start of the print is very tricky. The smaller the ball, the more problems in printing in my experience.

So here, the ball is printed in two halves, which click together. It's possible to print a very small ball like this. Personally I use a raft, as for this print this is easy to remove. The uploaded stl are all for very small balls, as that is why I created this thing.

WARNING: the mass distribution in this ball is not centered in the center, so the ball does NOT roll or behave like a normal ball. For my purpuse this is ok. If you need centered mass distribution, you will need to change the scad file so that bottom half is not thicker overall than top half