Summary
This is an enclosure that is fastened with screws throw the grid at the side of the controller box. Therefore it is specifically made for the Creality CR-10 but will of course fit at other places when one want the box to be permanently attached to something.
The board is fastened by melting those pins like a rivet.
Enclosure for Raspberry Pi 3 and Creality CR-10 3D Print Model
