Mike posted this hypnotic video of a 5-axis industrial CNC machine carving a prototype car form and applying/smoothing the epoxy shell. Even after understanding how it works, it’s still quite a fascinating process to take in. [via Hacked Gadgets]
From the MAKE Flickr pool Flickr member Model Army did some testing with a stereolithography machine and posted the elegant results. For those unfamiliar with the process – stereolithography uses UV lasers to solidify a photosensitive resin, printing objects one layer at a time from a vat of the liquid – Learn more about the […]
Mekonik used an Arduino board, solenoid coil, hall effect sensor, and some clever coding to hold a permanent magnet in mid-air – The device uses a small Hall effect sensor (SS19 from Honeywell, available for $0.50 from AllElectronics) to sense the field of the permanent magnet and uses that information to modulate the magnetic field […]
Jake von Slatt sent us a link to this nifty “legendary” automotive tip for removing old bearing races from an aluminum axle hub. There’s no way of knocking or prying them out. But if you weld a bead around the inside of the race, when the weld cools, it’ll shrink enough that it’ll come away […]
Yet another vibrobot design, this one made out of a metal jar lid, motor, switch, and battery. Killer Jar Lid Robot is Coming For You!
The Cheap Vegetable Gardner created this soil moisture sensor using nothing more than picture wall hanging hooks, a soda straw, hot glue, and some Plaster of Paris. After a little research there was the classic science class method of creating a homemade sensor by simply putting two galvanized nails in the soil and measuring the […]
Paul Lamere, of the Music Machinery blog, has a most excellent post investigating the detectability of drummers who use a click track: I’ve always been curious about which drummers use a click track and which don’t, so I thought it might be fun to try to build a click track detector using the Echo Nest […]
