PC Fan Magnetic Stir Plate

I use this stir plate to do my yeast starters with 2L flasks. This is not really a work in progress but after having it sit on my TODO list to post this for the past three or four years so I guess I'll never get around to making this a proper howto or build guide. The cap and base dimensions may not match each other! The top of the cap / magnets should just reach the top surface of the base. If you print and the cap sticks up too far, just print a smaller cap.

The design should somewhat scale