Keeps your magnets aligned for superglue and installation. It's the logical counter-jig to this one for bins:
If your baseplate uses “press fit” style clearance, I recommend this tool instead:
This model is a remix of https://www.printables.com/model/329110-gridfinity-magnetic-baseplate-jig . It's completely redesigned from the ground up, so it doesn't need support. The trick was adding a square in the middle for alignment.
Make the jig
Use the jig:
The author remixed this model.