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Stitching Up Custom Belts
If you’ve got a 3D printer, you’re probably familiar with the reinforced belts that are commonly used on the X and Y axis. These belts either come as long lengths that you attach to the machine on...
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Homebrew Loop Antenna Brings the Shortwave World to You
Radio may be dead in terms of delivering entertainment, but it’s times like these when the original social network comes into its own. Being able to tune in stations from across the planet to get fresh...
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Touch Face, Lights Chase, Sirens Race
Let’s face it — people are gonna touch their faces. Sometimes faces itch, especially during allergy season. But the first step toward quitting something like that is to become cognizant of just how...
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Three years of HardwareX: Where are they now?
After three years of online publications, HardwareX may have solidified itself as an academic journal for open-source hardware. We originally wrote about HardwareX back in 2016. At the time, HardwareX...
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John Horton Conway, Creator of Conway’s Game of Life, Has Died
Programmers everywhere are familiar with Conway’s Game of Life: whether they’ve written a version themselves or simply seen the mesmerizing action resulting from the cellular automata, it’s a household...
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Simple Demo Shows the Potential of Magnetic Gears
We’ve probably all used gears in our projects at one time or another, and even if we’re not familiar with the engineering details, the principles of transmitting torque through meshed teeth are pretty...
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Quieting Down A Bandoneon Accordian With MIDI
The bandoneon, known as the tango accordion, is quite a loud instrument to practice within the confines of an apartment, and could possibly lead to some neighborly disputes. [HLB] enjoyed playing his...
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NASA Needs Help from Gamers and Citizen Scientists
NASA would like you to help them explore — not space — but the bottom of the ocean. For now, you’ll need an Apple device, although an Android version is in the works. While it might seem strange for...
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Altium has its 2kicad Moment
Around these parts we tend to be exponents of the KiCad lifestyle; what better way to design a PCBA than with free and open source tools that run anywhere? But there are still capabilities in...
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Robot Arm Sucks in a Good Way
Building a robot arm is fun, but no longer the challenge it once was. You can find lots of plans and kits, and driving the motors is a solved problem. However, there is always one decision you have to...
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Printed Brain Implants Give New Meaning to Neuroplasticity
3D printing has opened up a world of possibilities in plastic, food, concrete, and other materials. Now, MIT engineers have found a way to add brain implants to the list. This technology has the...
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The Drone That Flies In Any Orientation
Modern radio-controlled multi-rotor drone can be incredibly agile, but can only make orientation changes around the yaw axis while remaining in approximately the same position. Researchers at ETH...
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Buyer Beware: This LED Bulb Sold as Germicidal Doesn’t Emit UV-C
Germicidal lamps are designed to destroy viruses and bacteria using ultraviolet light. But not just any UV light will work, and I came across an example of a lamp that was advertised as germicidal but...
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Logging Into Linux with a 1930s Teletype
Buried deep within all UNIX-based operating systems are vestiges of the earliest days of computing, when “hardware” more often than not meant actual mechanical devices with cams and levers and pulleys...
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Sending IP Over Morse, Because Why Not?
Are you a ham radio operator? Have you ever felt the need to send IP over Morse? If you answered yes (or no) and don’t mind a few manual steps between converting network packets to and from and Morse...
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This Camera Captures Piezo Inkjet Micro-Drops for DIY Microfluidics
In microfluidics, there are “drop on demand” instruments to precisely deposit extremely small volumes (pico- or nano-liters) of fluid. These devices are prohibitively expensive, so [Kyle] set out to...
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LED Clock Strips Time Down to Pulses of Light
Nietzsche said (essentially) that time is a flat circle — we are doomed to repeat history whether we remember it or not. This is a stark and sobering thought for sure, but it’s bound to dissipate the...
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A Dangerous Demonstration of the Power of Radio
Terrestrial radio may be a dying medium, but there are still plenty of listeners out there. What would a commute to or from work be without a check of “Traffic on the Eights” to see if you need to...
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Reverse Engineering a Saab’s In-Dash Display
For [Leigh Oliver], there’s something undeniably appealing about the green on black instrumentation of the 2003 Saab 9-3 Gen2. Perhaps it’s because the Infotainment Control Module 2 (ICM2) screen...
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Automatic Timelapses, Made Educational and Easy
Timelapse fragment from an infrared sky camera watching cloud patterns. There are plenty of ways to create timelapse videos, but [Andy] has an efficient method for ensuring up-to-date ones exist for...
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