tyguy993

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What Happens When You Pour Molten Aluminum into a Watermelon?

Over at The Backyard Scientist, they wanted to know what would happen if you poured molten aluminum into a watermelon. The results were surprising. And very cool.<p>I guess the aluminum flowed into the more watery, less dense cavities inside the melon where the water quickly cooled the metal before it …

Dental Care

Build an Adjustable Bottle Cutter for 30-Second Clean Cuts

One of the most popular videos we’ve ever shared on <i>Make:</i> (see below) is of Dan Rojas demonstrating how to cut a wine/beer bottle very cleanly using only a light score line and hot and cold water to stress the score and separate the glass. In that video, he uses a conventional glass cutting jig, …

Woodworking

Build an Ionic Thruster like NASA Uses for Space Propulsion

An ion thruster produces a flow of air even though it has no moving parts. A version of this seemingly impossible device is used on a larger scale to propel deep space probes for NASA. The advantage to this system over others is that you need only an electrical source to power the device and it has …

A Breath of Fresh Air: DIY Gel Air Fresheners

Turns out, vodka and gelatin are good for more than just jello shots. With a little help from your favorite essential oils, you can transform those common party staples into your own custom-scented DIY gel air fresheners!<p>Whether you’ve got curious kids in the house or a hot date coming over and a …

Sharpen Your Woodworking Skills with this Easy Bandsaw Box

Looking for a weekend project that’ll get you back into the wood shop? Transform a reclaimed wood block into a unique storage box—and hone your bandsaw skills while you’re at it—with this fun and versatile project!<p>Making a bandsaw box is a great starter project for learning how to expand your …

archiengineering.com

Easy Knockdown Occasional Table That Assembles In Seconds

Build a sturdy little table that assembles in seconds and folds flat for storage.<p>This sturdy table assembles in seconds without tools, and stores flat in a closet or under a bed. You can make it over a weekend from a ½”×4’×4′ sheet of finish-grade plywood.<p>The table shown is intended for children …

Fast Toy Wood Car

This Is The Biggest Amateur Rocket Ever Built

The largest amateur rocket ever built, at over 46′ tall, weighing in at 617 pounds, will attempt its first flight next weekend at the Thunda Down Under rocketry meet in Australia. This impressive-looking 1:1 scale replica of a V2 was created by the “rocket junkies” at the Rocket Victoria club. The …

Space Exploration

Fab Academy Adventures: 7 Press Fit Construction Kits

The Fab Academy program is a distributed educational model providing advanced digital fabrication instruction for students through an unique, hands-on curriculum and access to technological tools and resources.<p>In this series, Erin, aka RobotGrrl is going to be sharing her experiences with the …

Fab Lab

Reviews: Cameras, Wrenches, Pliers and More Tools

GoPro Hero 4-Series Cameras<p><b>$ varies : gopro.com</b><p>The newest breed of GoPro cameras have every feature ever asked of them, minus the one that always made them special.<p>Every camera is a compromise. Anyone who wants to capture the world around them wants a camera that is easy to use, produces stunning …

5 Basic Steps for Building Forts and Treehouses

Whether you called it a fort or treehouse I think most of us can remember a time when you simply wanted a place of your own. Maybe it was something to escape the stresses of elementary school or maybe a place high in a tree for launching of water balloons at just the right height. That’s right …

7 Fun and Easy DIY Spy Projects To Turn You Into 007

Maybe you’ve always dreamed of being a CIA operative. Or maybe you’re really into into 007. But whatever the reason, you’ve always had a thing for spies and those high-tech toys they have up their sleeves.<p>Well, now you don’t need all that formal training, not to mention all that danger. You can be …

Build The Best Snow Fort On The Block With This DIY Snow Brick Mold

Building walls, forts, igloos, and other favorite snow structures just got a whole lot easier and much more impressive. This weekend, take your personal winter wonderland to a whole new level and previously unseen heights with this DIY method for making perfectly-shaped stackable snow bricks for …

Bottoms Up: Build These Stylish Adjustable-Height Bar Stools

If you’ve got a bar, workshop, or breakfast nook in need of seating and you’re up for a serious weekend challenge, break out your power tools, because I’ve found the perfect project for you! If you’re ready to reach beyond beginner-level woodworking, now just might be the right time to try your …

Lock Picking 101: Build a Set of Progressive Locks

Lockpicking, in some ways, could be considered one of the earliest forms of “hacking.” Just like “real” hacking, it’s not easy to learn, and can be used for illicit purposes if practiced without discretion. If you do want to learn this art, one thing that could be very helpful is a set of …

Simple Box-Fan Food Dehydrator, a la Alton Brown

Jerky is the on-the-go snack that has fueled Native Americans, pioneers, and astronauts alike. And it’s easy to make at home. This method, popularized by Alton Brown, uses an ordinary box fan and air filters to dry the meat.<p>Step #1: Slice it.<p>NextPrev<p>Buy your desired cut of beef (sirloin is a good …

How It Is Made: 3D Printing Filament

plenty of testing stock<p>miscellaneous parts<p>ready to ship<p>extruder kits<p>packaged to stay dry<p>laser cut bits<p>other brands are available<p>Quadcopters scattered about<p>testing filament<p>another test<p>looks like filament spool holders<p>cutting parts<p>more quadcopters<p>pigment measuring station<p>raw pigment<p>glow pigment<p>this …

3D Printing

Orbotix’s Ollie Rolls into the Maker Shed

Orbotix’s popular Sphero rolling robot has a new friend. Ollie was launched last fall and we’re happy to now have it in the Shed.<p>You may be wondering what the differences are between Sphero and Ollie. Let’s take a closer look.<p>The first-of-it’s-kind Sphero trumped many of the Bluetooth-enabled …

Robotics

Voltera’s Circuit Printer Launches on Kickstarter, Smashes Goal in Minutes

The Voltera V-One circuit printer, one of our favorite finds at CES this year, just launched its crowdfunding campaign on Kickstarter — and hit $100,000 in 35 minutes.<p>The Voltera system provides multiple capabilities: It will print the traces for your prototype circuit board (at 8mil space and …

Printing

Amateur Chemistry: DIY Conductive Ink

Mix up a homemade batch using some basic chemistry skills<p>Thanks to recent scientific advances, you can buy conductive inks in the form of pens, paints, and even printer cartridges, but have you ever wondered if you could make your own?<p>You can, and following a simple process developed by the …

University of Illinois

Bathtub Science: DIY Bath Fizzies

I don’t know anyone — kid or grown-up — who doesn’t delight in watching a fun and foamy explosion of fizz. (You know, like those cool erupting volcanoes you made in science class back in the day.) Well, it turns out those chemistry lessons of years past have a whole lot in common with your favorite …

Can a $600 3D Printer Beat a $20,000 Machine?

The internet is such an incredible and beautiful place: Two strangers with amazing toys came together to give us a showdown that is sure to amuse and inform. In one corner, we have Scott Hanselman, armed with a $600 Printrbot simple metal he got two weeks ago. In the other corner, we have Brandon …

Time-lapse Photography

Pro Tip: You Can 3D Print Parts from McMaster-Carr

I don’t know about you but sometimes it feels like I can plan and measure all I want and then I order the parts I think I need and they’re not exactly right. This can be nerve-wracking, annoying, and expensive when you’re spec’ing high-priced parts.<p><i>Make:</i> pal Meredith Scheff-King discovered a …

Joule Thief Battery Charger: Bring Back the “Dead”

[youtube:http://youtu.be/I8W20uwtJ3Y]<p>A “Joule Thief” is a simple voltage booster circuit. It can increase the voltage of a power source by changing the constant low voltage signal into a series of rapid pulses at a higher voltage. You most commonly see this kind of circuit used to power LEDs with a …

Pulverize Your Old Keyboard to Make These Fridge Magnets

I always try to find ways to reuse the parts from my old electronics. I had a couple of old keyboards lying around, so I decided to use the keys to make alphabet refrigerator magnets.<p>Step #1: Remove the keyboard keys<p>NextPrev<p>Use a narrow screwdriver to pry the keys off the keyboard. In most cases …

Like Brain Teasers? This DIY Puzzle “Nails” It

I love brain teasers and wood-based puzzles and this is a good one that you can easily make yourself. Basically, all you need is a chunk of pine, a nail, and some boiling water (oh, and a saw and a drill).<p>[youtube:http://youtu.be/fEATei2wewY]<p>It’s called the “Tooth and Nail” puzzle, and it appears …

We Can’t Wait to Try Leatherman’s New Wearable

A new wearable popped up yesterday, called Tread, from Leatherman. A metal bracelet, modeled kind of like a watch band, with links that come apart and function as Allen wrenches, screwdrivers, wire strippers, and more of the features you expect from multitools. As makers, it tripped our triggers …

Wearable Tech

IKEA Hack Music Visualizer Table

With an IKEA “Lack” table (they’re only $10!) and some LED’s, and you can have the coolest centerpiece table around. This project is a music visualizer table, an idea that creator crt4041 based upon a tiny Arduino music visualizer project from Adafruit. When music is played near it, it lights …

Building a High Quality Slingshot with Rotating Bearings

Slingshots can be fun, and are usually very simple devices. Usually, a length of stretchy rubber is attached between a y-shaped structure, then pulled and released to launch whatever object you decided to put in the ammunition pouch. This slingshot build, by Eric Au of Metro Grade Goods, takes …