Hacks, Mods & Circuitry Features

How To: Make your own DIY film projector

Finding a film projector for those who still shoot film, or those who still house film can be tough. They're either sparce or extremely expensive. In this six part tutorial, learn how to make your own DIY homemade film projector for your home without shelling out tons of cash. This presentation is hosted by Dan Mikesell at Pratt Institute.

How To: Zap and revive old NiCad batteries with a mig welder

Nicad batteries often die in such a way that they won't take a charge and have zero voltage. This usually means they're shorted out by crystal dendrite growth. Here's a method of bringing them back to life by zapping those shorted crystal dendrites away with too much current and/or voltage. We'll use a welder as a power source. You could also use a car battery, a DC powersupply, or almost anything with some voltage. Charged-up capacitors are popular for this because you can get a very fast pu...

How To: Hack the Staples Easy Button

Hacking an Easy Button? Easy! In this video tutorial from Make Magazine's Kip Kay, you'll learn to hack the Staples Easy Button to say whatever you want it to. For more information, including step-by-step instructions on replicating this hack at home, watch this how-to video.

How To: Turn a Game Boy Advance into an Old-School Miniature Arcade Cabinet

No matter how advanced technology gets, there will always be room for classic video games in the hearts of nerds everywhere. Mini arcades became very popular, as they allowed users to take arcade games on the go. As Game Boys and other mobile gaming devices appeared, the mini arcade slowly disappeared. Well, believe it or not you can combine the best of both worlds! Metku user Japala wanted to make his old Game Boy Advance SP "look cool again," so he turned it into a mini arcade cabinet.

News: Teens Pulled Over in Their Almost Street Legal (And Totally Cool) DIY Wooden Car

Getting pulled over sucks, even when you're in a normal car. Just imagine how these teenagers felt when they were pulled over for driving their wooden car without a license! They also got a citation for not having a speedometer or side indicator lights, but if that's all that's keeping their DIY vehicle from being street legal, I'm already impressed. Photo by WTF.nl/Zaanstreek-Waterland Police

How To: Secretly record people with your own spy sunglasses

Hack a pair of sunglasses to secretly record audio and video and spend less than $40 in the process with this how-to video. To replicate this hack for yourself, you will need a spy camera and black solar shield sunglasses. For detailed, step-by-step instructions on building your own spy recorder sunglasses, watch this hacking how-to from Kip Kay of Make Magazine.

How To: Increase your wi-fi signal with a coffee can

In this tutorial, we learn how to increase your Wi-Fi signal with a coffee can. Materials you will need are : a knife, a coffee can, tape, USB Wi-Fi adapter, and marker. First, measure 1 inch from the bottom of the coffee can then trace your USB around that mark. Now, cut a hole in that shape in the can. Next, cover the hole with your tape. Next, hook your USB up to your cable adapter, and then place it in the coffee can. Now, plug your USB into your computer and you should have more signals ...

How To: Satisfy Your Need for Speed with This DIY Arcade-Style Racing Cockpit

Racing games are always better when you have a steering wheel instead of just a handheld controller. And those old-school arcade racing cockpits? Even better. Matthew Boyer decided to bring the feel of a racetrack into his living room with this insanely awesome DIY arcade racing cockpit. He built the frame out of plywood and a real racing seat, then added LEDs, surround sound, and a 32-inch flat screen. The pedals, shifters, and steering wheel are laid out to match the measurements in his rea...

How To: Make a USB fan out of old CDs

Sweaty summer day by the computer? Office A/C broke? Watch this how-to video! You can make a simple USB fan using a compact disc, a USB cable, and a small fan motor. It's quick and easy! Don't suffer from the heat. Watch this video tutorial and with these circuitry tips, build a simple USB fan out of some old CDs.

How To: Build a Mini Hovercraft

Create a miniature hover craft from the fan, polystrene or Styrofoam plate, batteries and double-sided scotch tape. It really works. Powered by two 9 volt batteries you can use paper plates for the body of the hovercraft if need be. This is a cool cat toy or just a household hack.

How To: Turn your doorbell into a guard dog alarm

This video shows you how to make a security device out of a door bell. The concept is that most thefts happen when people are away from home. To make sure of this the thief rings the door bell to make sure that nobody is home, if nobody answers then they will break in. A lot of people have dogs and alarm systems which will scare off the thieves, but this alarm system combines both. To make this devise you have to buy a speaker system that connects to your door bell. When the door bell rings i...

News: Want a Drink? The Arduino 'Inebriator' Will Pour You 15 Different Cocktails

Who needs to go to bartending school when you've got the Inebriator to mix your favorite drinks for you? Want a cosmopolitan? No problem. Press a button. Want a tequila sunrise? Sure thing. Press a button. As long as you've got a good supply of liquor and mixers, the Inebriator is at your command. So, what exactly is this Inebriator thing? Well, it's a robotic bartender that can automatically pour 15 different pre-programmed cocktails. With 9 different liquors and 7 mixers on board, it's got ...

Altruistic Hacking: The Rise of the DIY Radiation Detector

Understandably, the tragedy in Japan has substantially risen the level of worldwide radiation-related hysteria. So much so, as an alternative to stampeding health food stores for iodine tablets, crafty individuals and organizations are hacking together personal radiation detectors. Rather than relying on the government, the creation and modification of handheld Geiger counters provides a self-sufficient solution to today's questions regarding radiation. Profiled below, three admirable organiz...

How To: Make the world's loudest alarm clock

In this video, we learn how to make the world's loudest alarm clock. If your alarm clock does not wake you up, this is for you! First, you will need to take apart your alarm clock and find the wires that are connected to the tiny speaker that is inside of it. After this, grab two very large horns that have enough decibels to wake you up. Now, find an old 12 volt ac adapter and solder two wires from the adapter to the spot where the alarm sends signals to the alarm clock. Now, test out your al...

How To: Wire a light with a 3 way switch

In this video, Mark Donovan teaches us how to wire a light with a 3 way switch. Before starting, make sure the power is turned off from the main circuit panel first, and you test to make sure it's off. You will have two switches for the same light fixture. For a 15 amp circuit, you can use 14-2 and 14-3 wire. These wires will have a black, white, and red wire. The 14-2 wire just has a lack and white wire with a copper ground. The power coming into the base should have all the wires that conne...

How To: Install trailer lights

This video demonstrates how to install trailer lights on your boat's trailer. In order to determine what size replacement kit you will need, you must figure out the width of the trailier at the widest point. First, remove the old lights. Use a large slotted screwdriver to remove the cover. Don't forget to wear eye protection. Next, use vice grips and a wrench to remove the exposed stud. Using a wire brush, remove the salt and loose corrossion. Then grease the threads of the studs. You are now...

How To: Build a mini fume extractor

Materials needed: Altoid mint tin, 9 volt batter and connector, switch, 7812 voltage regulator, 12 volt computer fan, carbon filter and 2 pieces of screen. Wire the battery connectors. Solder all of the following: Negative connector to the switch, wire to the switch, ground wire of the voltage regulator to the middle wire, output for the 7812 to the fan, positive lead on the 9 volt connector to the input on the 7812 and the negative from the 7812 to the negative on the fan. Test. Put all the ...

How To: Get free electricity from a phone jack

Learn how to get free electricity from your home telephone line just by watching this video. Save money on your power bill, and hack into the electricity coming out of the phone jack. The phone company doesn't monitor electricity usage, so you can probably get away with this con. Check out this video tutorial and learn how to tap into the electrical energy source in your phone line.

How To: Make a 200mw burning laser

Don't use a perfectly good DVD burner to get your laser that will pop balloons, light matches, and burn stuff. Just buy a laser diode at mfgcn.com and also a laser housing, and you won't be tearing a computer DVD player apart. This is the easy way to make a 200mW burning DVD laser. Use a Mini Maglite and some rechargeable batteries so you don't burn out the laser.