CMD SuperCPU case/enclosure

I've been on a tear lately restoring my retrocomputing stuff to good condition, and relevant to this website, making new enclosures/cases since I've also been either acquiring hardware here and there (since I sold a lot of my stuff a long time ago, sadly), or discovering stuff I still had that I thought was either lost or non-functional or just incomplete.

My latest score is the very SuperCPU 128 that I once owned years ago.  As mentioned in other Projects of mine, I built my Commodore 128 into a tower configuration (more than once), and some time later, took it all apart, and this one has since become known as the “infamous wooden-case SuperCPU”, owing to the makeshift case I created for it before eventually selling it.

That wooden case was functional, I mean I needed SOMEthing right?  Well that was years ago, and that wooden monstrosity just wasn't gonna cut it, so I designed a new case!  In the process, I also made a number of repairs and clean-ups to the device itself, which is why it looks different in some photos versus others.

This enclosure prints in three pieces:  front, back, and mezzanine board cover/guard, the latter of which is patterned after the one found on the RAMLink.  Got that idea from toms01 on Forum64. 🙂

Note that this case design is several millimeters deeper than the original CMD product, because when I started working on it, my SuperCPU's RAM card had a standard 90°/tall SIMM socket on it, installed as part of a previous repair done by someone else, which would not have fit a normal-sized case.  The RAM card now has a proper 22.5°/low profile socket, but I kept the deeper case design in the event that others have had do the same sort of repair to their device as well.

That being the case, if you have a RAMLink or other big device that's more than a few millimeters thicker or wider than a standard-size cartridge, the back of the SuperCPU will probably keep it from reaching far enough inside to mate with the connector therein.  You'll need to build a simple extender of some sort, or use an extension cable.  I made one by cutting off the male edge from an old prototyping board and soldering that directly to a suitable female connector.

0.2 mm layer height is sufficient for this project, and no supports are required.

The mezzanine guard glues into the case front from inside, but that's just a few drops of superglue.  You will need eight M3 x 5-6 mm screws and four nuts.  The nuts should just press-into their traps, but you may need to use your soldering iron to heat-set them into place.

Included is an appropriate sticker, suitable for the https://makestickers.com using their die-cut method.  They made the one shown in the photos (though there was a minor positioning error in the image file I sent them, which I've since corrected for this project).

If you'd like them to make the appropriate sticker for you, here's the relevant link:

https://www.makestickers.com/design/24051122CYBT-r3lxroh66s0m37o5kqb3g0m9