You can switch a tattoo machine on and off with a foot pedal, but this can be an issue when it’s time to pack it up with other gear that needs to be kept ultra-clean. To address this problem, YouTuber “Wildman Tech” made an Arduino-powered device in the shape of a beautiful wooden pyramid to control […]
Fidget spinners are currently very popular, and if you get one you’ll certainly want to spin and spin, maybe thinking you’ll never put it down. Unfortunately, like Nikodem Bartnik, you’ll eventually get bored with this device. Perhaps setting it aside forever. However, as Bartnik puts it, “Spinner has to be spinned,” so he came up with […]
When you see a plastic ruler, you wouldn’t normally assume it was destined to become part of a CNC plotter. Maker “lingib,” however, realized their potential to be combined to form plotter arms, in this case actuated by two stepper motors. The resulting build can expand and contract the resulting shape, allowing a pen at […]
If you want to truly impress your grandkids, and perhaps entertain yourself at the same time, there are many things you could do. Building a 1/4-size railroad, however, has to be close to the top of the list. This well-constructed model was inspired by a 1965 Popular Mechanics article, and includes a beautifully-painted engine, a 275-foot-long […]
The La Fabrique DIY team has been working on a unique clock modeled after buildings seen along the Seine River in Paris. The “City Clock” is different from the others in that instead of a dial or decimal numbers, windows light up in a binary format, displaying the time in a binary sequence. Electronics-wise, the clock can be made […]
YouTuber “HomoFaciens” had quite a bit of square tubing to cut for his latest CNC router. As he’s known for combining simple tools with creative uses of electronic components, he came up with a jig that helps him precisely position his cuts. This device works using an encoder made out of paper, tape, and a nail […]
If you’re familiar with the Segway or other vehicles that balance in what is known as an “inverted pendulum” configuration, you may think that while interesting, creating something similar would be too complicated or out of your budget. Though perhaps still not simple, Joop Brokking takes you through his design for this type of bot in […]
Hacker “MmmmFloorPie’s” senior project in college, in 1989, was a device based on the venerable Motorola 6800 chip that could record and play back sounds. It could also display these recorded waveforms on a monochrome CRT monitor. The monitor in question was purchased as a bare CRT for $20, and mounted in the cardboard box […]
You’ve seen exoskeletons in movies such as Aliens and Iron Man, and perhaps even heard about current experiments with human use. Unfortunately though, if you want to learn about this technology, the barrier to entry is very high. EduExo, now available on Kickstarter, is an attempt by robotics researcher Volker Bartenbach to bring this technology […]
Building robots can be (relatively) easy if you’d like something to wander around your room and avoid obstacles, but for complicated control tasks, like shooting pool, things need more development. Engineer “Bvarv” has been working on just such a robot, which currently exists as a one-sixth scale model. Though it’s not currently capable of playing the […]
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