High Profile Rae-Dux Keyboard Case

This is a case for the very nice Rae-Dux wireless split keyboard by Andrew J. Rae (aka iaap). 

This was my first two-piece case and my first truly high profile case and it was a lot of fun! The inspiration was mainly the lack of mounting holes on the PCB, which precluded my usual extremely minimal casing approach, and the truly crispy cases GEIST designs for his boards. 

I've tested it and it works! You can either use an M2.5 tap to tap the holes in the top case and screw the bottom case into it, or just rely on the annular snapfit hold provided by the indexing rim I modeled in. It honestly seems to be plenty of hold for a desk board. I'll probably throw a few screws in if I travel with it, just to be sure.

The big hole in the bottom is ¼"-20, so basically a built-in tenting puck. I found that I could add just a wee bit more depth to the bottom and have room for a cavity for a 750 mAh battery, so I did that, too. Should get you more than two months of battery life on the central side with reasonable deep sleep settings in ZMK.

If you'd rather use a 110 mAh battery (and use magsafe stickers to tent rather than ¼"-20 hardware), print the SLIM bottomcase. There's no cavity for the bigger battery and no cavity for a battery jack, so you need to solder the leads from your 110 mAh battery to the PCB directly and mount the battery under the nice!nano in the usual way. There's also no ¼"-20 hole. But, nixing that stuff lets me get the case slimmed down by another ~3.5mm, so that's pretty cool.

This model is in two pieces, each of which should be printed in its default orientation and flipped horizontally to produce the four case pieces for a whole split keyboard. 

Edit: I just added a couple photo collages to show the relative heights of LDSA, MBK, and MCC caps (plus LDSA, CS Convex, and CS T1 thumb caps) on the case, both actuated and at rest. Hopefully that helps you get a sense for how they look on the finished case.

Also, the cover photo for this case shows an earlier prototype for the left hand case, where the controller is exposed. The version I uploaded is the version on the right (with one dimension tweaked to make sure that it prints nicely). 

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I print both pieces in their final orientation with supports touching the buildplate, but with a sufficiently large minimal supported area that the screw holes don't have support in them.