I finally got annoyed enough by the mess of cables and decided to finish an enclosure for the PRNTR board. I finished designing the bottom half.
This is what it looks like in the OnShape assembly:
View from another angle:
Closeup of the final assembly – the outer fan duct:
A look over the whole board:
And finally this is what it looks like, when powered up:
All 3D component designs are available in OhShape here.