Hacked Gadgets Forum

March 5, 2013

TheGeekGroup Quarter Shrinking Machine

at 9:36 pm. Filed under Electronic Hacks, Insane Equipment, What Were They Thinking


You may have seen shrunk coins before but you may not have seen the technology that goes behind making them. Thanks to Aud1073cH for sending in the video above that The Geek Group made showing how they make the coins that they sell as a fund raiser item. If you are interested in purchasing other coins such as the Canadian Toonie (pictured below) have a look at this site here.

“After many months of designing, engineering, prototype-building and planning, we are finally shrinking quarters with Project Stomper! The quarters are shrunk with impressive power behind them: 6,000 volts and 100,000 amperes. After the process- which happens in less than 1/100th of a second – the quarters are now about the width of a dime, although significantly thicker.”




February 19, 2013

Magnetic Perpetual Motion Machine

at 9:52 pm. Filed under Insane Equipment, What Were They Thinking


Another Perpetual Motion Machine here, this one is magnetic. Not sure how this one was done. Any ideas? It is very convincing, my first guess would be a small motor within the center drum. The real system is demonstrated at the 2:00 mark.


After you are done guessing how this is done click here or have a look in the comments (number 13). Mfsamuel has located an image that shows us how this was done.

December 24, 2012

$3657 High Speed Automatic Pick and Place Machine

at 8:11 pm. Filed under Insane Equipment


If you haven’t listened to the latest Amp Hour (episode #126) you may not have heard about this $269 High Speed Automatic Pick and Place Machine. I have very little information on it since I can’t read Chinese, the videos demo the system quite well though. For such a small machine it sure looks impressive, the tiny screen looks to have a ton of very usable information although most of it looks to be Chinese. I did see a language switch so there might be an English version available. The price on this system sounds to good to be true though, I would love to hear from someone that can read Chinese if there are any hidden charges that bring this price up significantly.

UPDATE: The title has been updated to reflect the actual USD price. For those who saw the original price listed, sorry about that. I did a quick Google conversion which converted it from the Japanese Yen. I didn’t realize until now that the Chinese and Japanese use the same currency symbol. Thanks to the commenters below for catching this pricing error. So the price isn’t as jaw dropping as I thought but it is still quite tempting, I can see this as a way for a basement hobbyist to start cranking out some production type quantities in no time. A solder paste station, a skillet or converted toaster oven along with this pick and place could get some boards cranking with just one person! 

 The pictures look impressive but make sure you have a look at some of the videos.

Video 1

Video 2

Video 3

Video 4




December 14, 2012

Most Powerful Magnet in the World

at 8:53 am. Filed under Insane Equipment


This magnet (seen at 3:15) is crazy. A smaller version is demonstrated at 6:30, they are dropping an aluminum tube through the magnetic field demonstrating Lenz’s Law, we saw Lenz’s Law in action here but the results are a bit more impressive with a super huge magnet!


November 27, 2012

Maker Faire NYC 2012

at 10:04 pm. Filed under Insane Equipment


Sean wrote:

Hi all,
I went to Maker Faire in NYC last month and put together a video of the people I met (including Kelvin Doe, who is at the end of the video). There’s some pretty amazing stuff, though it is mostly overview and not so much a step-by-step guide
on how to create specific devices.  Anyway, I hope you check it out, and I hope you like it!


November 22, 2012

15-Year-Old Kelvin Doe from Sierra Leone visits MIT

at 2:48 am. Filed under Electronic Hacks, Insane Equipment



Kelvin Doe who is also known as DJ Focus is a 15-Year-Old living in Sierra Leone. His community is not developed, for example the power only works one day a week.  He has built an ton of electronic projects, the incredible thing is that since there is no Radio Shack handy he has to find his parts in trash cans. He also takes things apart to see how they tick. Watch the video below to see how he reverse engineered a battery so he could make his own.  Thanks to David Sengeh for inspiring people like Kelvin and giving him a helping hand. I hope MIT is able to provide his a free education since he certainly deserves it. 

Crowdrise is a non-profit that is accepting donations to solve the problems of Sierra Leone by cultivating innovation among young people.

Thanks for sending this in Harrison



November 20, 2012

Analog Clock Voltmeter

at 5:43 am. Filed under Complex Hacks, Cool Gadgets, Crazy Hacks, DIY Hacks, Electronic Hacks, Funny Hacks, Insane Equipment, What Were They Thinking


What is the voltage on a AA battery? It would be around 1:30PM if you were using this voltmeter! A PICAXE 18M2 microcontroller is used to read an analog value, calculate what time it represents and then uses a stepper motor to spin the adjustment knob to have the clock show the voltage using the hour and minute hands. :)

Read more about the Analog Clock Voltmeter

“The max input voltage for the ADC on the PICAXE 18M2 is about 5VDC.  To tame the input signal for the PICAXE a simple 3:1 voltage divider (10K, 10K, 10K) was implemented.  This limited the input voltage into the PICAXE to 4VDC.  A trim pot was also used to adjust for the input impedance of the PICAXE and to help calibrate the measurement results.”


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