This is a simple cog toy that shows how accurate and resilient 3D prints can be. It's quick to print and just snaps together.
There are individual component files, print 2 cogs and one each of the frame top and bottom.
There is also a complete set that can save you time, but don't forget your Z hop to stop it ripping the components off the bed as the head moves.
If you use a raft, it will be more stable during the print.