Collaborate Disseminate
[ProjectsInFlight] has been on a mission to make his own semiconductors for about a year now, and recently shared a major step toward that goal: homemade spin-on dopants. Doping semiconductors …read more Continue reading Designing A Hobbyist’s Semiconductor Dopant
Almost all satellites have some kind of thrusters aboard, but they tend to use them as little as possible to conserve chemical fuel. Reaction wheels are one way to make …read more Continue reading Magnetohydrodynamic Motors to Spin Satellites
If you want to convert heat into electrical power, it’s hard to find a simpler method than a thermoelectric generator. The Seebeck effect means that the junction of two dissimilar …read more Continue reading Home-casting Thermoelectric Alloys
We’ve seen quite a few delta 3D printers, and a good number of toolchanging printers, but not many that combine both worlds. Fortunately, [Ben Wolpert]’s project fills that gap with …read more Continue reading A Toolchanging Delta 3D printer
We’ve seen quite a few delta 3D printers, and a good number of toolchanging printers, but not many that combine both worlds. Fortunately, [Ben Wolpert]’s project fills that gap with …read more Continue reading A Toolchanging Delta 3D printer
Detecting a signal pulse is usually basic electronics, but you start to find more complications when you need to time the signal’s arrival in the picoseconds domain. These include the …read more Continue reading A Constant-Fraction Discriminator for Sub-Nanosecond Timing
Despite the best efforts of the RepRap community over the last twenty years, self-replicating 3D printers have remained a stubbornly elusive goal, largely due to the difficulty of printing electronics. …read more Continue reading The Most Printable 3D Printer Yet
Amazing as volumetric displays are, they have one major drawback: interacting with them is complicated. A 3D mouse is nice, but unless you’ve done a lot of CAD work, it’s …read more Continue reading Elastic Bands Enable Touchable Volumetric Display