The prize this week is an Arduino Pro Mini. This contest will run for one week (May 31 – June 6, 2014). Ending time is based on central standard time. To enter, identify the item above and what it can be used for. Please note the image above is a side view of the thing. Please do not give the answer in the comments. Send an email to contest
Having your technology save you time is great. NYC CNC doesn’t have to sort his spent bullet casings any more since he has built this Arduino Sorting Machine. It has an automatic feeder which drops the casings onto a roller, the roller opening is slowly enlarged until the casing falls through. The system then sorts it based on the size.
Aircraft hangers are usually very large simple buildings that house millions of dollars worth of airplanes. A small fire can quickly damage the contents of the building. Fuel storage containers are pretty scary when they burn out of control. The key is to have a fast reaction to fire and hit it with an effective suppression material. These videos are interesting due to the large scale. I think they
There will come a time when you have too much electronic junk laying about ready to take apart such that you can’t easily walk around. The obvious solution is to make some Electromagnetic Boots for Walking on the Ceiling. Via:Â Hackaday “The magnet shoes themselves are easy to make and i can see people trying this. The tricky part is walking upside down, the ropes which have switches on
Ben Heck attempts three different methods for making a prototype PCB. The methods are the toner transfer method, the laser etch method and the good old hand drawn method. I was surprised that Ben didn’t use his CNC machine as a fourth method. “He’s designed PCBs in Eagle and sent them off for production at a board house, but this doesn’t help when he wants a PCB the same
Turnvater Janosch has created a fun looking Mechanical Ball Clock. No controller here, this thing is powered by a falling weight. Via: Laughing Squid “The clock runs for 12 hours, driven by a weight of 2.5 kg sinking approx. 1 meter during that time..Every minute a marble is lifted up and goes down a marble run with three flipping traps that count marbles for minutes, five-minute-steps and hours. The
If you are doing any electrical work, one of these Non Contact Voltage Test Pens can be quite handy. Just touch the wire that you want to make sure isn’t live and check that the tester doesn’t beep and start flashing. This test pen is on all the time monitoring for AC between 90V and 1000 V. I would have preferred the device to have an on/off switch which
