Update 12/28/18- uploaded the CAD files per a request. Fair waring- this was one of my first designs with fusion before I knew what I was doing. Its a little rough :)

This is an enclosure I designed to house the Rambo board for my MPCNC. There are standoffs in the bottom that the board fits on. The mid section slides on pins in the bottom, and the top piece engages the pins on the bottom locking it all together. There are pins on the top to place a fan. This has been working well now for about a year.
Please let me know your thoughts.

Anycubic I3 Mega

No

No

.22

50

each piece takes around 4 hours.