This is a simple CYD enclosure designed for remix or for a custom adaptor mount to be bolted to the rear.
A series of M4 sized holes are provided in the rear. The rows are spaced 27mm aparts vertically and columns 15mm apart horizontally.
4 x M3x12mm bolts are used to attach the rear base to the cover. You should be able to use countersunk or non countersunk.
Openings are in place to line up with the micro SD and USB ports.
NOTE: My CYD board only has a single USB-micro port. Some people have versions with both micro and C ports. The opening will not line up properly for that version. I can't adjust the model since I don't have that board, so hopefully a remix comes along soon if you are not comfortable editing yourself.
A STEP file is included for easy remixing.
This enclosure is shown in more detail in this video:
The author remixed this model.
Cleaned up and resized sections to fit snugly around the CYD. Holes in the rear panel for mounting.