Inspired by the great Gridfinity Pressure Fit Magnet Jig by Software2 I designed my own Version.

I embossed the words Bins and Base on them to know which one I need to use and get it right ;)
The end where the magnet is inserted is not flat, it has a circle protruding about 0.2mm to help getting the magnets into the holes of the base/bins

There are three versions for magnet sizes 6x3mm, 6x2mm and 6x1.6mm.
Insert the magnets all the way. You can check if it in all the way by putting another magnet on the outside. If it lines up with the circle you are all set.

Printing recommendation:

• PLA works just fine
• 0.2mm layer height
• 20% cubic infill
• 2 walls works fine for me