Illustrated Kristina with an IBM Model M keyboard floating between her hands.

Keebin’ With Kristina: The One With The Keyboard-Mouse

One of the most annoying things about keyboard and mouse input has got to be the need to constantly switch between the two. Ever wish there was a single solution that combined them with elegance? Then you should definitely check out [lemosbor]’s Lapa keyboard, where the right half includes a mouse sensor.

A 36-key split board where the right half also operates as a mouse.
Image by [lemosbor] via reddit
Lapa, which is Russian for ‘paw’, certainly has that type of look. This hand-wired keyboard uses a pair of Pro Micros and an ADNS9800 optical sensor for mousing around. Under those ‘caps are MX blues, the OG clackers.

Let me just say that I love the look of this keyboard, and I don’t normally like black and brown together. But that oak — that oak is classy, and it looks good with the resin-and-varnish case. If you can handle a 36-key board — I myself cannot — then this would probably be a game changer. There are even slots for your palms to breathe.

Unfortunately it’s not open source, but a girl can dream, right? In the reddit post, [lemosbor] says that they would be interested in selling the next version, provided it’s the final one.

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Handheld Satellite Dish Is 3D Printed

Ham radio enthusiasts, people looking to borrow their neighbors’ WiFi, and those interested in decoding signals from things like weather satellites will often grab an old satellite TV antenna and repurpose it. Customers have been leaving these services for years, so they’re pretty widely available. But for handheld operation, these metal dishes can get quite cumbersome. A 3D-printed satellite dish like this one is lightweight and small enough to be held, enabling some interesting satellite tracking activities with just a few other parts needed.

Although we see his projects often, [saveitforparts] did not design this antenna, instead downloading the design from [t0nito] on Thingiverse. [saveitforparts] does know his way around a satellite antenna, though, so he is exactly the kind of person who would put something like this through its paces and use it for his own needs. There were a few hiccups with the print, but with all the 3D printed parts completed, the metal mesh added to the dish, and a correctly polarized helical antenna formed into the print to receive the signals, it was ready to point at the sky.

The results for the day of testing were incredibly promising. Compared to a second satellite antenna with an automatic tracker, the handheld 3D-printed version captured nearly all of the information sent from the satellite in orbit. [saveitforparts] plans to build a tracker for this small dish to improve it even further. He’s been able to find some satellite trackers from junked hardware in some unusual places as well. Antennas seem to be a ripe area for 3D printing.

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E-Paper Anniversary Counter Is A Charming Gift With Minimal Power Draw

[Lonyelon] wanted to build an anniversary gift for his girlfriend. He decided to say it with e-Paper, a wise choice given its persistence and longevity.

The project is an anniversary calendar. It displays a counter of the total time the couple has been together, measured in years, months, days, and hours—so it’s remarkably precise. [Lonyelon] also programmed it to display additional counters to create plenty of additional fun anniversaries—the couple can celebrate milestones like their 1000th day together, for example. It also cycles through a range of cute messages and displays photos of the couple together.

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