Can you teach an old typewriter new tricks? You can, at least if you’re [maniek-86]. And a word to all you typewriter fanatics out there — this Optima SP 26 was beyond repair, lacking several internal parts.
But let’s talk about the keyboard. It has a standard matrix, which [maniek-86] hooked up to an Arduino Lenoardo. Although the keyboard has a Polish layout, [maniek-86] remapped it to English-US layout.
As you’ll see in the photos of the internals, this whole operation required careful Tetris-ing of the components to avoid overheating and ensure the cover could go back on.
The graphics were a bit of a challenge, since the motherboard had no PCI-E x16 slot. To address this, [maniek-86] used a riser cable, probably connected to a PCI-E x1 slot with an adapter, in order to use an NVIDIA GT 635 GPU. It can’t run AAA games at 4k, but you can bet that it’ll play Minecraft, Fortnite, or Dota 2 just fine.
Parkinson’s Keyboard Design Starts With the Human Body
This is OnCue, designed by [Alessandra Galli]. For Andrea, design is a “vehicle for care, inclusion, and meaningful social impact,” and these values are evident in her creation.
The keys themselves have haptic feedback as well as the cuffs. AI-driven visual cues light up the most likely next letters, which is interesting. And everybody deserves a split layout.
Although wrist-based haptic feedback was the most well-received feature based on user feedback, it’s interesting to note that no single feature stood out as preferred by all. Users found the haptic feedback calming and relaxing, which is a huge win compared to the usual keyboard experience faced by users with Parkinson’s disease. Because the overall Parkinson’s experience is different for everyone, [Alessandra] took a modular approach to designing the customization software. Users can adjust the settings based on routines, preferences, and intensity of symptoms. And plus it looks to me like there’s a haptic feedback slider right there on the keyboard.
The Centerfold: Bonsai? Banzai!
Regarding the real bonsai on the right shelf, [mugichanman] keeps it outside for the most part. It only comes indoors for a little while — three days at the absolute most. If you’re interested in the care and feeding of these tiny trees, check out this bonsai master class in a book.
Do you rock a sweet set of peripherals on a screamin’ desk pad? Send me a picture along with your handle and all the gory details, and you could be featured here!
Historical Clackers: the Columbia Index Typewriter
Remember the Caligraph? Probably not, so I’ll wait. Well, apparently inventor Charles Spiro was hellbent on building a better Caligraph after he saw one being used. But he couldn’t raise enough capital to create such a large machine, so instead he went down to the basement and came up with the Columbia Index Typewriter.

If you’ll recall, index typewriters are like label makers — you must choose each character using an index of some kind. Operating this machine was no different.
One simply turned the straight handle on the right side to choose the character, which was highlighted by a small hand. Then the user would just press down on the handle to print it, and this action locked the typewheel so it wouldn’t slip and print something different.
Interestingly, the Columbia was the first typewriter with proportional spacing. That means that the carriage advanced based on the width of individual characters.
Columbia typewriters were only made for three years, from 1884-87. Three models were produced — Nos. 1 and 2, followed by an improved No. 2. The Columbia shown here is a No. 1, which typed in uppercase only. The 2 came out in March 1885 and could do upper and lowercase. The improved No. 2 was more robust and better mechanically, as well as being easier on the eyes. By 1887, Spiro was working on the Bar-Lock typewriter.
Finally, One-Handed Keyboard Does It Flat Out
The journey toward the keyboard you see here began with an email to [HTX Studio]. It came from a father who wanted to see his daughter be digitally independent again after an accident took the use of her right hand.
After several iterations, each tested by the daughter, the result is a compact, 61-key affair in a fanned-out arrangement for ease of use. Everything is within close reach, with special consideration given to the location of Space and Delete.
One of the early iterations had the user moving the entire keyboard around to mouse. While that’s definitely an interesting solution, I’m glad that everyone settled on the nicely exposed trackball with left and right click buttons above Space and Delete.
Another thing I’m happy about is that [HTX Studio] not only built 50 more of these in both left- and right-handed models and gave them away to people who need them, they went ahead and open-sourced it (Chinese, translated). Be sure to check out their fantastic video below.
Got a hot tip that has like, anything to do with keyboards? Help me out by sending in a link or two. Don’t want all the Hackaday scribes to see it? Feel free to email me directly.
I love the story about the one handed keyboard and the fact that they choose to make it open source. It’s also a great video about the design proces, thanks for sharing.
OnCue is a funky little keyboard. I love it. 🩷
The parkinson keyboard might be great for people suffering from it, but from an ergonomic perspective it’s not great. Many moons ago, those gel pads became a fad and people put these gel filled pads in front of their keyboards and mice. It also correlated to the fat of keyboards with an angled piece in front of the keyboard that was usually directly attached to it so you couldn’t remove it. The problem is that if you lay your wrists down while typing or mousing, you can end up with problems with your nerves. The pressure from your wrists can cause nerve damage after a longer time because you keep squishing your nerves, causing repetitive strain injury. It was sold to prevent it, but it resulted in more people having problems. Your wrists need to be free, up in the air, in a straight line to your keyboard to cause the least amount of damage. I think, although I find the video hard to watch, that the one handed keyboard has a very similar problem. It’s better to get a simple keyboard with no wrist part and have it TKL or smaller, so you can put your mouse in the place where the numpad usually is if you are having problems. If you do need to enter a lot of numbers, get a separate numpad.
Might be great for those that need it but if you don’t, it’s best to avoid it.
Don’t get me wrong, I love the idea, the design work is amazing, especially from the parkison keyboard and if it can help people it’s great. If you have parkinson and this allows you to type and connect to the world, then I’m all for it. I’m really curious about the keycaps as those dished keycaps are something I have never seen before and I’m very curious about actually typing on it.
Regarding keyboards, what I would love to see is a nice (not brand specific) configurator for DIY mechanical keyboards. I know there is keebfinder but it’s far from usable.