This part is based off the gridfinity base plates. The difference being inch measurements and the addition of magnet holes on each side. The benefit to this: Users don't need to have more than one file for base-plate sizes. This one small part can be printed on smaller format printers. Opening the door to hobbyists with resin printers. This one part is infinitely expandable in any direction the user needs. Additionally this part should be designed to be easily machinable if users wanted to use more durable materials or for persons looking for a more refined looking product.

https://cad.onshape.com/documents/239bdbcfe813feb58c120a36/w/16d35897d546d6295bbe9ea7/e/1d40eff2837875c350cb516a