Here you will finish the basic controller by installing the top to the enclosure.
Install top Enclosure Component
Insert the top enclosure component into the recess at the top of the enclosure.
Secure with four #6-32 x 3/4" machine screws with washers, lock washers, and hex nuts.
Note that the plastic 3D printed brackets will require #10 machine screws.
Install Top Cover
The top enclosure component only has partial mounting holes so that you can use #6 sheet metal screws to secure the top panel cover to the enclosure top.