A quick note: these files were created through ergogen and can be modified and re-created if any changes are needed, which is great, except that the software is still a little bit buggy, so it doesn't make perfect STL files. Even though these can look a little strange, I have printed all of these files and they came out okay for me.
If you have access to your own 3D printer with a large print bed or if you are sending the files away to be printed, you will want to use the full size cases:
Note that the bottom case may require supports for the bumpon indentations.
The top case is best printed upside down, so that the visible part of the case is against the print bed, giving the best top surface and requiring no supports to print.
If you have access to your own 3D printer but it has a print bed too small for the full-size case, you can print the 3-part top case:
For the bottom case, you can split it anywhere it makes sense to you; since it's not visible, it matters less where the line is.
The keyboard was designed with the idea of using a 25mm diameter knob, but I had a hard time finding encoder knobs that size, especially for an EC12 low-profile encoder.
If you use the recommended EC11 encoder, you should have plenty of commercially available options for the knob, so feel free to use whatever knob you like.
But I've also created a super-simple one with a skirt so that as much of the encoder as possible is hidden.
Both of those knobs will give about the same look, but if you use a low-profile EC12 knob, you have the ability to go with a shorter knob: