Fresh hacks every day
[Ed Nauman] runs a machine shop, which we imagine can be quite loud at times. Sick of never hearing the doorbell when he was busy working on things, he decided that the solution to his problem was a new doorbell…an incredibly loud doorbell.
His Really Loud Doorbell (RLD for short) is actually a pretty simple device. We imagine … Read the rest
The folks at Advancer Technologies just release a muscle sensor board with a great walk through posted on Instructables describing how this board measures the flexing of muscles using electromyography.
Using the same electrode placement points as the remote controlled hand we covered earlier, the muscle is measured by sensing the voltage between the muscle and its tendon. The … Read the rest
One thing we can all probably agree on is that Tesla coils are one part high-voltage electricity and two parts pure awesome. [Rob Flickenger] thinks so too, and he built a pretty nice one in his workshop some time ago. He took a bunch of pictures showing off the coil’s capabilities, but he thought that one photo taken from … Read the rest
Be sure to check out Part 1 of the KC Maker Faire photo series. In this post, we explore some of the big hitters of the show, including crowd favorites ArcAttack, as well as battling robots. Read on to see the wonders!… Read the rest
Although not a hack in itself, many of you may be interested in seeing how a printed circuit board is made in the manufacturing world. This tour of Advanced Circuits does a good job of explaining the process. The article explains how a PCB will go through a CAD/CAM review, drilling, deburring, and the various chemical etch, plating, and curing … Read the rest
[Emi Tamaki], [Miyaki Takashi] and [Jun Rekimoto] at the University of Tokyo came up with a device called the PossessedHand that electrically stimulates muscles to train someone to play a the koto, a Japanese stringed instrument.
The PossessedHand ‘triggers’ individual fingers with precisely placed electrodes. Sixteen joints in the hand can be controlled independently by placing one electrode on … Read the rest
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