Cool!
The fit is very unforgiving. It might be hard to use with plastics that warp or with poorly adjusted printers… Or if the PCB is cut a bit larger.
I had trouble scaling the part and had to be… Creative. Thats why the thumb portion’s shape is strange.
Glad to see it works for you!

Here’s the first prototype I made in tinkercad.
I don’t know how to do CAD modeling, but I’ll try my best to make it fit well and I’ll share the STLs.

The part with the pickup trucks… idk.
I will not be able to design an intricate tilt mechanism in the short term, I have almost no CAD software knowledge… Thanks though.
I was planning on ‘baking’ the tilt into the case model or glue little feet.

I actually bought myself an ergonomic keyboard months ago that does support tilting it in the other direction, with a curved wrist rest to help.
It works quite well, but I also like the concept of the one I built.
I’s like to tilt it to make it more comfortable, if it turns out I like using it.
From what I understand, you can have all the keys you need on a keyboard like that, but it requires muscle memory of key combinations, and I do not know yet if that’s for me. I’d have liked to start on a board with more keys, but it’s expensive just to see if it suits me or not.
I can also see it being useful in VR while playing games like Elite Dangerous, to have one half per arm on a chair with a HOTAS setup.
It’s definitely a niche thing.

edit: just read your other comments and I think you should chill a bit. I see these things as specialized and personalized computer input interfaces. People are different and input methods should be too. It might not fit your bill, but it might for some people here or maybe they like experimenting to find what works for them.
I don’t want this to become a VI vs Emacs flame war analogy.

I also don’t understand it at the moment, but I was curious so I built the cheapest good unit I could find to try it out.
Maybe I’ll like it or maybe it’ll go to eBay. We’ll see.
What got me interested initially is the regonomic aspect of split keyboards since I spend most of my time at the computer and I’d like to avoid injury.

Oh thank you!
I might try this again on Linux and see how it goes.
It’s good to know that the encoder can be fixed, I’ll take a look how to do that.
Those are nice legs, might get some. I am also already in the process of designing a 3d-printed case that will also serve for tenting. We’ll see how it goes lol.