Collaborate Disseminate
When you think about highly-precise actuators, stepper motors probably aren’t the first device that comes to mind. However, as [Diffraction Limited]’s sub-micron capable micro-manipulator shows, they can reach extremely fine …read more Continue reading Designing an Open Source Micro-Manipulator
In the 1930s, as an alternative to celluloid, some Japanese companies printed films on paper (kami firumu), often in color and with synchronized 78 rpm record soundtracks. Unfortunately, between the …read more Continue reading The Challenges of Digitizing Paper Films
A business card is a convenient way to share your contact information, but it’s unfortunately prone to being thrown away or forgotten. PCB business cards try to get around this …read more Continue reading Building a Macro Pad into a Business Card
Convenient though they may be, [Trevor Faber] found some serious shortcomings in shifting spanners: their worm gears are slow to adjust and prone to jamming, they don’t apply even force …read more Continue reading Building a Shifting Ratchet Wrench
A fundamental difficulty of working with nanoparticles is that your objects of study are too small for an optical microscope to resolve, and thus measuring their size can be quite …read more Continue reading Measuring Nanoparticles by Scattering a Laser
As difficult as it is for a human to learn ambidexterity, it’s quite easy to program into a humanoid robot. After all, a robot doesn’t need to overcome years of …read more Continue reading Ambidextrous Robot Hand Speaks in Signs
Anyone who’s spent significant amounts of time salvaging old electronics has probably wished there were a way to take apart a circuit board without desoldering it. [Zeyu Yan] et al …read more Continue reading A Solderless, Soluble Circuit Board
Candle clocks were once an easy way to build a clock without using complex mechanical devices: just observe how quickly a thin candle burns down, mark an identical candle with …read more Continue reading 2025 One Hertz Challenge: A Flaming Oscillator and a New Take on the Candle Clock
If your guitar needs more distortion, lower audio fidelity, or another musical effect, you can always shell out some money to get a dedicated piece of hardware. For a less …read more Continue reading Running Guitar Effects on a PlayStation Portable
Designing a circuit is a lot easier on paper, where components have well-defined values, or lacking that, at least well-defined tolerances. Unfortunately, even keeping percentage tolerances in mind isn’t always …read more Continue reading Coping with Disappearing Capacitance in a Buck Converter