Spectrum analyzers are a nifty way to visualize music. But maker Platinum Kit decided the displays that come with graphic equalizers were too small, so he built a jumbo version with colorful LEDs placed behind acrylic blocks. He reversed the lows and highs, but it’s still super cool.
THE BEST Diy
Like many other makers, SKM loves to build things from cardboard. This time, he used what appears to be an off-the-shelf template to create a model of Iron Man’s iconic helmet, though this one is guaranteed to offer absolutely no level of protection to its wearer.
For no reason other than to see if he could do it, artist Nick Zammeti made a gigantic coloring pencil out of thousands of individual coloring pencils. He adhered the pencils together with resin, turned them on a lathe, then carved it into shape. Its giant lead means it can actually draw.
Colin Furze made an airsoft replica of the briefcase machine gun in Kingsman 2. It’s also remote-controlled, but the real trick was figuring out how to cock and trigger the gun with one switch. Believe it or not, there’s actually a lethal version of this setup from decades ago.
We’ve seen industrial machines that can bend wires into shapes, but thanks to 3D printing and low-cost controllers like Arduino, you can make your own desktop machine now. How to Mechatronics shows us exactly how. Grab the full instructions, models, code, and schematics here.
YouTube’s premiere mechanic ChrisFix shows us how to make a hidden kill switch for your vehicle. When switched on, it interrupts the flow of electricity to the vehicle’s fuel pump relay, preventing it from starting, even with a key. It takes a bit of fiddling, but it costs only $10 in parts.
The Q show off another one of their awesome low-budget builds, a robot arm that’s made primarily from cardboard and popsicle sticks, and controlled by plastic syringes filled with colored liquid. If there’s anyone we’d want to be stranded on a desert island with, it’s these guys.
Using not much more than cardboard, ball bearings, popsicle sticks, and glue, V. Idea created a working model of a manual transmission. While its not likely to drive a Corvette, its offers seven forward gears, and one reverse gear, just like the current generation of Chevy’s sports car.
Matt Giles shows off a really nifty way to dress up a room – instead of going with traditional floor tiles, he laid down 27,000 individual pennies (just $270 plus labor) for an amazingly cool look. It’s a time-consuming project, but with enough patience, anyone can do it.
There are lots of really cheap speakers out there, and most of them sound like garbage. YouTuber Jisaku kōbō shows us how a pair of $3 speakers can sound much, much better when placed into a pair of proper wooden enclosures. Of course, skilled labor is the real cost here.
Living Big in a Tiny House often features homes that were made with mobility and affordability in mind. But Marnie and Dan’s home came out of a desire to have a minimalist lifestyle. They made their new home in the backyard of their regular house, which they now rent out.
Bladesmith Jake’s Custom Knives takes an old pipe wrench and works his magic, transforming the rusty plumber’s tool into a beautiful and unique new knife, perfect for throwing at a bullseye. While this one isn’t for sale can buy other knives over at Jake’s Etsy shop.
Keith’s Test Garage has been making organizer trays for his collection of router and Dremel bits. He started out by drilling holes that fit the bits, then he thought of a much simpler method: intersecting dadoes. The grooves take only five minutes to make with a table saw.
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