It may not be the most sonically pleasing instrument, but the engineering behind Josh Sheldon’s build makes up for it. The organ uses 49 stepper motors which spin backwards against variably-sized disks, producing waves of electrical current which can be amplified.
One of the more entertaining robotic groups we’ve heard was built by FT Mechatronics, whose electronic band consists of a variety of stepper motors, solenoids, hard drives, oscilloscopes, a robot xylophone, nixie tubes, and a tesla coil. Here, it plays Hello by OMFG.
Instructables contributor Mikeasaurus shows off his ridiculously dangerous looking creation, a skateboard which leaves a fiery trail in its wake. It drips out a small amount of fuel triggered by a foot-controlled switch, and ignites it with an electric sparker. Full build log here.
Future Interfaces Group shows off Electrick, an intriguing way to convert virtually any sort of object into a touch-sensitive surface using conductive materials or sprays, and connecting an array of electrodes. It’s not as precise as a touchscreen, but it can sense X/Y positions.
Turns off you don’t need to be the US Navy to build a railgun. YouTuber Ziggy Zee shows off his backyard railgun, which he mounted to an old RoboteX remote-controlled platform. This killer beast fires up to 35,000 joules of electricity, laying to waste anything in its path.
Backyard engineer Peter Sripol turned a NERF rifle into a souped-up airsoft gun with a fairly large barrel. Then he loaded the gun with all sorts of improvised projectiles, such as AA batteries, 6″ nails, and fireworks. This guy’s going to be just fine in the apocalypse.
Peter Sripol and his pals like to fly r/c airplanes, but he tried something a bit different for his latest flyer by building a plane that uses two spinning KFC buckets to get airborne, courtesy of the Magnus Effect. Flight KFC185 hits the skies around the 11-minute mark.
Oliver Wilshen and Niall Quinn aka Signal-to-Noise modded an old Roland DXY pen plotter, covering its bed with strips of magnetic tape, and replacing its pen with a playback head. The result – a strange device that can play back bits of audio based on x/y coordinates.
Vexal shows off a ridiculous mod he performed on his Porsche which he claims allows him not only to play the classic FPS DOOM on its screen, but to control the game using the car’s steering wheel, horn, gear shifter, and accelerator. Sure, it’s fake, but it’s still hilarious.
Instructables contributor MariaK64 shows us how to transform a IKEA PS 2014 pendant lamp into an exploding Death Star with nothing more than paint, masking tape, and some artistic skill. But instead of firing at the exhaust port, simply pull the cord to blow it to bits.
Using a pair of record players, a stick of wood, a binder clip, a fine point pen, and some tape, you can make a machine that traces the movements of one turntable’s arm, to make abstract art on the other’s platter. You can make something even cooler with a little extra effort.
The Xbox One S just came out, and modder Ed Zarick has already transformed the console into laptop form. The slimmer, lighter console makes for a more portable machine than ever. It’s got a 19″ display built in, and a 4K HDMI output. Enter on twitter for a chance to win one.