Double Sided PCB Etching using a Laser Cutter

  Rich Olson shows us how he was able to laser etch the trace pattern onto some copper clad PCB using his laser cutter so that he could later chemical etch the unwanted copper away. I have tried something similar and was not successful since I was not able to line up the front and back of the PCB well enough for pads and vias to work. Rich uses a

LED Lens converted to Macro Photography Lens

  You can purchase some macro lenses for your phone camera but with a bit of work and a spare LED lens you can make your own. Only thing to make sure is that the LED lens is high quality so that there aren’t any bubbles or other imperfections in it which would cause image distortion. ASCAS shows us how it is done in his LED Lens converted to Macro

Money Shredding Alarm Clock Project

  If you have trouble getting out of bed a bed shaker alarm might be a bit extreme, you might be just fine if there is a bit of money on the line if you sleep in. This Money Shredding Alarm Clock Project might be just what you need to give you some inspiration. With this clock you are given the beep warning to get up and switch off the

Hack a Sigma Lens to operate with Canon Cameras

  With this hack you will be able to Hack a Sigma Lens to operate with Canon Cameras. The lens being demonstrated is an older lens and the camera that it is being adapted for is a DSLR. The issue is that the signals from the DSLR for adjusting the aperture of the lens are not recognized by the lens. By adding a small microcontroller in the mix, the camera

Wireless Voice-Controllable Smart Home Project

  Jiayuan Wang and Sheng Zhang from Cornell University built this Wireless Voice-Controllable Smart Home Project for their ECE 4760 Final Project. “There are two CPU in our project, ATmega328 and ATmega1284. We set up the wireless communication by two Xbee chips. One of them connects with ATmega328 working as the transmitter to transmit the signal, another one is connected with ATmega1284 to be the receiver. We pick up ATmega328

LEGO Mindstorms Boat

  LEGO Mindstorms are very versitile but I think this is the first boat I have seen. Interested in Mindstorm? Have a look at his Youtube channel to see what else he has built. Via: Make “built by Mike and Cedric of the OSZT school in Täuffelen, Switzerland”

Build a Robot Hand

  Using some assorted pieces of wood, springs, string and some odds and ends will allow you to make a cool looking Robot Hand! Looks like William Jakespear has lots more cool demonstration of what he makes on his Facebook Page. The hand straps to your wrist and your normal sized hand can then operate the huge robot hand. The springs that were scavenged form a bunch of pens allow