Commodore 64 cartridge cases

This project provides about a dozen variants of C64/C128 cartridge cases.  These models were built using adjustable, high-detail, non-destructive modeling for everything.  It is therefore quite easy to make new variations on these basic designs.

Provided here are designs using a center post and screw, side clips, and some use no fasteners at all (you'd glue or tape these shut).  There are variants with wide labels, some of which have extra “ridges” to surround the label area, and one features a place to fasten-in a button or switch along with an access hole on top for things like DIP switches, jumpers, headers, etc. (I use this variant for a tools/diagnostics EPROM cartridge I threw together).

There's also a printable “prototyping" board derived from a real PCB I once made, though this printable one probably won't be all that useful for more than just some basic modeling/sizing prior to making a real board.  I suppose one could print it and then apply strips of copper tape or stripes of conductive paint to create the edge connector, but…well… that ain't optimal. 🙂  Note that like the real one, it is meant to fit the case variants with the center post/screw.

If your board has no center hole and comes up a little short, it's easy enough to just stuff a wad of paper or blue tack in at the back to fill the gap.  You can see this with the board in the red case, for instance (it's one of the aforementioned real prototyping PCBs, but its center hole is blocked, so I had to use a case with side clips instead).

Lastly there is a small support post you can print and glue-in if your project uses a board which is too narrow to sit on the regular support posts (the idea here is to print and glue one on each half of the case so that they hold your PCB from both sides).

Also note that the variants with the snap-in clips deliberately don't hold together super tight, but they shouldn't fall apart either – I had to aim for a reasonable middle ground here.  That's just a limitation of 3d printing – make them hold too tight and the clips will just break.

The usual 0.2 mm layer height and 0.4-0.5 mm line width is fine for these models.  You'll probably need thin/single-wall mode to print the variants with the center post.  You shouldn't need to use supports though, but the label areas may not print well if your printer doesn't have good bridging performance (particularly, the variants with the extra wide label area).

2026-08-08: Added a variant of the standard-label case that contains both a center screw post AND side clips.

Credits:

Originally, some time ago, I made a remix of Makerboost's project,  https://www.thingiverse.com/thing:692797 , to get rid of the center post so that I could use it to house my old Turbo232 board.

I have since remodeled everything nearly from scratch, using his project only for some basic size/dimension references.  Since there's nothing significant left from Makerboost's model beyond some minor, leftover bits and bobs, I consider this project here to be entirely my own work.

As this project completely replaces my original remix, I have deleted that one.