I designed an enclosure box for the x65-SBC computer. For modelling I used Siemens Solid Edge 2024 CAD software, of which I have the Employee Edition. (I think it is just similar to the free Community Edition, but I did not verify.)

The enclosure box is composed of 'top' and 'bottom' parts which can be 3d-printed individually. The parts are screwed together with four M3x25 screws and M3 nuts, with the PCB held in the middle:

For the first print I have used a Prusa's Carmine Red PETG filament on my MK4. Here are photos of the front and back views:

The mechanical fitting of the PCB to the box is surprisingly good. Following picture is a cut-away view with the SNES connector on the front and VGA connector at the back:

I implemented shadow lines at the interface between the two box parts, shown in the picture above. Shadow lines help the two pieces to come together and make for an optically "clean"

All files are available in the repository github.com/jsyk/x65-mech.

And this is another print in Ultramarine Blue PETG: