DIY keyboard

I see what you did there.

No rattling stabilizer wires in this build though. NONE. Cuz they can't rattle if they ain't there.

It's not a world apart from what the keyboard world calls a "96%". I made sure no key was wide enough to need additional stabilizing clips, which led to the split space among other changes, but layout-wise it's not too far off from several numpad laptop keyboards I've used over the years. It has been very liveable, and it's on my work computer now.

Do the 4 different space keys have a function?

They COULD, as the keyboard is completely programmable, but for now mine don't. I wanted to avoid stabilizers for this build, the little clips with wires that make wide keys work properly. They're fiddly and can be rattly if you you don't set them up just so and even add a bit of non-conductive grease of some sort.

I like the placement of Delete (numlock is hiding as "Fn+CapsLock"), but if I were doing it over I'd switch things around just a touch and have Backspace just a touch wider and delete as a normal-sized key. My finger seems drawn to delete. The layout has been really liveable though; no major complaints.

Not once you see the 3D printer seam running down the middle or the rats nets of wires connecting the (rather tidy) matrix to the RPi. 🤣

It does work nicely though. Sometimes has a spasm of gibberish when I plug it in, but very well behaved afterwards, and a pleasant clicky typing experience.

I find it kind of relaxing, really. Like tying fishing flies, but mildly carcinogenic!

I have not yet dived into PCB design, so this is a hand-wire. The brains are a Raspberry Pi Pico microcontroller unit running a keyboard Python package called KMK. The switches under the keycaps are manually soldered in a matrix, with diodes to allow a human number of i/o signals (rather than a dedicated one for every single key) but still prevent the RPi from accidentally detecting ghost keys.

Nothing new under the sun here, and I have learned a lot from the various resources out there, but there are not a ton of people doing their own keycap legends (this batch is underwhelming in color, but very serviceable), and most handwires tend to be ergonomic models that are more off the beaten path than this layout, which, TBH, is quirky but has a ton of keys and is pretty similar to several off the shelf models.

I used Kailh Box Jade switches. It is VERY clicky. The Masonite plates and plastic side case don't echo much though, so it's not resonant or hollow; it mostly sounds like you're holding the switches themselves in your hand, with a fairly muted bottom out from these cheap-n-chunky XDA keycaps.

My favorite board to type on uses the equally loud Box Navies on an aluminum plate that serves as the entire top of a short "sandwich" case. I think it's fair to say I am not quite in line with the majority of mechanical keyboard enthusiasts.