Nut Hunt board set

My sister bought the game "Nut Hunt" from Kickstarter. We played it with my kids and the board pieces just didn't seem to want to stay in place, so I offered to 3D print a set of pieces that could hold all the tiles in place...

The set consists of six pieces with a maximum measurement of under 213 mm, so it should be able to be printed on an Ender 3 and (if you remove the box insert) it fits into the original box of the game. The six pieces are divided by a space of 0.1 mm, so if you usually have a hard time getting tight pieces to fit, I also uploaded two test-pieces one can try to print first to see if you have close enough settings to be able to print the whole set.

I used OnShape for the design, and this is my first time using OnShape, so please be gentle in your comments if it looks wierd!
Here is the link for the file:
https://cad.onshape.com/documents/153faf0c106e07458e442e3c/w/fd6800831d2c60f91d37c771/e/a02d3922bfd275cf63b310e8

For copyright reasons I've only uploade