How to Power a Laser Diode

How To : Connect different laser diodes to a power supply

Lasers are one of the coolest things that you can build yourself from a pure sci-fi fantasy standpoint. They're not easy though, but this video will help you somewhat by describing different types of laser diodes and how to connect them to a power supply. Part 1 of 2 - How to ...more

How To : Increase the power of a 5mw green laser pointer

In this tutorial, we learn how to increase the power of a 5mw green laser pointer. First, you will need to gather the parts you will need, which include a vise, the laser, a soldering iron, and a block of wood. After this, cut the block of wood in half and then put your laser ...more

Making Electromagnetic Weapons : Semiconductor Lasers

I'm back with the third part to my laser weapon series (see part one and two), and I'll be explaining the function, application, and potential of semiconductor lasers, aka laser diodes. Surely, most of you have used a laser pointer at some point. Whether purchased at a dollar ...more

Making Electromagnetic Weapons : Lasers, Part One

In this series on weaponized lasers, I'll be exploring the function, operation, strength and building instructions for three basic laser weapons; CO2, Diode, and Flashlamp. These laser types are just a few of many, selected because of their simplicity and basic construction (d ...more

How To : Automate Your Doorbell with Freaking Lasers

Doorbells are a great idea. They let you know when someone who's not a burglar is trying to enter your house, apartment, or squat. They eliminate the need for lots of noisy yelling and startling door pounding. The one thing doorbells don't do is to let you know when someone f ...more

Making Electromagnetic Weapons : Flashlamp Lasers

In my second article of the laser weapon series (see the first part here on CO2 lasers), I'll be expanding on the potential of pulsed lasers. I'm sure most everyone has seen those green and red laser pulses on Star Wars. Theoretically, those lasers could be built using a conc ...more

How To : Make a lithium thionyl chloride battery

Watch this science video tutorial from Nurd Rage on how to make a lithium thionyl chloride battery, which is capable of generating 2.8v with enough current to power a LED. Warning: Thionyl Chloride is EXTREMELY toxic and this experiment must be performed in a fumehood by an e ...more

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 l ...more

How To : Fix the Xbox 360 open tray error

In this video we learn how to fix the Xbox 360 open tray error. First, open the console up and find the laser power. There are two screws around this laser that need to be changed. The left one should be screwed up a slight amount until it's slightly lifted. Once it's lifted, ...more

How To : Make a laser pen from a DVD burner

In this Electronics video tutorial you will learn how to make a laser pen from a DVD burner. Take a DVD burner, remove all the screws from the bottom panel and remove the panel. Then remove the rest of the body cover as shown in the video. After this the laser will be revealed ...more

How To : Turn a 5MW laser into a 100MW laser

Tired of that dinky little 5MW laser? Turn the power up and convert your 5MW laser into a 100MW laser? A small amount of modification can produce a significantly stronger light coming out of your laser. You will need a small screwdriver (such as a jeweler's screwdriver), needl ...more

How To : Make a DIY Battery-Powered USB Charger

With portable devices being a necessity in modern everyday life, they may be subject to overuse, improper charging, or normal wear and tear. For those people who carry around their smartphone or iPod with them all of the time, how many times have you been out and about just to ...more

How To : Build your own burning blue laser torch

This mod will run you about $130, but you'll have your own laser torch at the end of it. You'll need a high end flashlight, a Aixiz module, an AR coated lens and a blue diode. Then assemble according to the instructions, and get a laser at the end of it!

How To : Take apart your PS3 gaming console

To take apart a PS3, you will need the following tools: Phillips-head screwdriverPliersTiny Phillips-head screwdriversTiny flat-head screwdrivers On the bottom, there is a sticker that says "if you remove this sticker, you will void the warranty". Take the sticker off.Undernea ...more

News : Mod Your Power Wheels Into WiFi Halo Warthogs

Tim Higgins brings Halo's warthog vehicles to reality with a live action game created with laser tag weaponry, game controllers, and kid-sized jeeps. Feeling ambitious? Tim posted a full rundown of the build over at Microsoft's Coding4Fun blog. Check out the interview below ...more

Making Electromagnetic Weapons : Directed Microwave Energy

Welcome to Microwave Energy—the next part of my Making Electromagnetic Weapons series. For the Electromagnetic Pulse Generator, check out the last three articles (One, Two and Three). I'm sure almost all of you have used a microwave at some point in your lives. As a child, I ...more

Link Roundup : 15 Guides To Pumpkin Carving

Halloween just isn't Halloween without Jack O'Lanterns. Below, anything and everything you need to know on the art of pumpkin carving. 1. Prepare a Pumpkin for Carving Serious Eats' video demonstration is for true novices: "This video is for you unlucky souls who never got t ...more

How To : Make a solar charging bag

Sometimes it's more than just inconvenient when your electronics lose power. Sometimes, losing power could be dangerous. Never worry about a dead cell phone again! Charge your portable electronics by harnessing the power of the sun. You Will Need *Solar-powered garden lights ...more

News : This DIY Passion Fruit Battery Can Power Lasers!

It's been proven over and over that you can make batteries out of fruits and vegetables such as lemons, potatoes, and even apples. Turns out, passion fruit is also acidic enough to power a battery, but Maui Makers member Ryan K decided to take it a step further by adding a las ...more

How To : Use Real Steam Power For... Robots?

First off, let me say this—using real steam power is dangerous, and heavy, and just generally not worth it when you have modern alternatives. Except, you know, if you're a Steampunk. Or this guy: Video: . The guy in the above video makes some awesome gadgets, which are unfortu ...more

How To : Hack a laser pointer into a burning laser

It's not just for annoying cats, anymore. You can upgrade your laser pointers and turn them into an actual burning laser! This tutorial by Kip Kay shows you how to mod a basic laser pointer into a higher powered laser.

How To : Make a rechargeable, solar-powered USB battery

An emergency battery charger for your mobile phone comes in handy, but it's not the ultimate solution; once it's dead it's useless (what a waste). If you want to really get off the metaphorical grid, you can follow the steps in this video to construct a more robust circuit tha ...more

How To : Build a 3D scanner from a $25 laser level

Systm is the Do It Yourself show designed for the common geek who wants to quickly and easily learn how to dive into the latest and hottest tech projects. We will help you avoid pitfalls and get your project up and running fast. Search Systm on WonderHowTo for more DIY episode ...more

How To : Turn a laser into a burning laser

This video tutorial from Shooting Eggs demonstrates a hack that will allow you to convert a cheap 5 mW green laser pen into a 100 mW monster. Watch out, don't burn your carpet! Check out this hacking how-to and learn how to build your own high-powered laser on the cheap.

How To : Make a Solar Death Ray with an Old Projection TV

In this article, I'll show you how to make an awesome "Death Ray" using the large magnifying lens from an old projection TV. The lens is called a Fresnel lens; a device that employs several ridges to focus light, rather than a complete curve. When sunlight passes through the ...more

How To : Set your default printer on a Mac

Thanks to Apple's awesome user interface, it is extraordinarily easy to set your default printer. Instead of guessing which printer your document printed to, be certain of where it is every time. Stop chasing that printed document around your home or office and set your Mac t ...more

News : World's First 3D Printed UAV Takes to the Skies

The use of unmanned aerial vehicles (UAVs) has been widely used by the military for surveillance and reconnaissance missions—even armed combat. But there are other beneficial applications of an unmanned aircraft, such as search and rescue operations, scientific exploration, lo ...more

How To : Build a Laser Trip Wire Alarm System

Building a DIY Alarm System: The Concept So, you want to protect your property, or maybe a room, car, or even your backyard. The concept of an alarm system is to notify the "alarm administrator" that there is an intruder entering the previously designated boundaries. The trig ...more

How To : Turn a pizza box into a solar oven

Save that last slice of pizza! You can reheat it in its own container, using the sun's power. Turn a pizza box into a solar oven. You Will Need * A large pizza box * A ruler * A black marker * A box cutter or utility knife * Heavy-duty aluminum foil * All-purpose glue * Sciss ...more

No SFX Necessary : 5 Real Life Iron Man Prototypes

How is it possible that Iron Man is not yet a reality? DVICE reports that super-powered exoskeletons are indeed within our grasp (if not quite as flashy as Hollywood SFX just yet). Real life exoskeletons fall into the realm of not-too-distant futuristic warfare. Below, five e ...more

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