Robinson Foundry shows how he made a double-threaded bolt using the lost PLA method he used to make that awesome bronze skull. The process involves dipping 3D-printed models in ceramic, firing then, then melting away the plastic with metal. The design was inspired by a bi-directional bolt machined by Oleg Pevtsov.
Artist Daniel de Bruin is an expert at making metal tracks for marble machines. He’s taught us how to make our own, and even made a room-sized marble track. Now, he’s downsized his efforts, creating the tiniest marble course we’ve ever seen, using a custom drive mechanism, 0.6mm wire, and a 5mm wide ball bearing.
A normal pool ball is made from polyester or phenolic resin, which makes them hard and durable. But the idea of playing billiards with metal balls intrigues us. My Mechanics rises to the challenge with this impressive stainless steel and brass 8-ball he made from scratch. We’d love to see a complete set of balls made this way.
Frustrated by missing shots on a regular pool table, The Q went ahead and built himself a special kind of pool table where the ball goes in the pocket virtually every time. The trick is its elliptical shape, which sets up the perfect bank shot at every angle. This video from Numberphile explains the geometry at work.
Good airflow is important for keeping electronic components cool, so most computers use fans to circulate air. But we’ve never seen a computer that cools itself by breathing. DIY Perks shows off a gigantic machine he built that quietly pumps air in and out using bellows.
Because of their size and weight, chainsaws typically require both hands for safe operation. Make It Extreme shows how it’s possible to engineer and construct a compact chainsaw small enough to be held with one hand, yet capable of sawing through thick branches and making very rough cuts of lumber.
Back in 2008, Bridge City Tool Works posted this video showing off a fun use for their precision Jointmaker Pro table saw. By cutting numerous alternating notches into a stick of lumber, it turns into the wooden equivalent of a wet noodle. Woodworker Stumpy Nubs posted a more recent video showing how the tool works.
RC aircraft enthusiast Troy McMillan spent countless hours planning, designing, 3D printing, and assembling a scale model of a jumbo jet. Here, he shares the time-consuming build process, its maiden flight, and tragic demise after a battery failure rendered his flight controller useless.
Woodworker John Heisz of I Build It recently added a CNC router to his shop. As he’s continued to build his CNC skills, he put the machine to the test by having it fabricate wooden parts to replace its own drag chain. The flexible, segmented cover is designed to keep the machine’s cables safe and tangle-free.
Athens, Greece artist Roman Parkhin of Banjo Show makes unique sculptures with a steampunk aesthetic. Watch as he turns an assortment of hardware, tubing, and vintage radio tubes into a funky accent light under a glass dome. At its center is a radiometer, a device which spins when exposed to the heat generated by a light.
Make It Extreme has built some pretty rad vehicles, but their Endobike prototype looks sketchier than most, seating its rider in a low position between its large front wheel and two smaller back wheels. It has no steering wheel, and instead steers by leaning. One commenter called it the “Faceplant Machine.”
Normally, if you want a Mercedes-AMG G63, you’re looking at a six-figure price tag. Not so if you’re King of Crafts, who fabricated a drivable replica of the rugged G-Wagon out of cardboard. It rides on a homemade steel tube frame and can hit speeds up to 25 mph. It’s even amphibious… sorta.
Yonex is one of the most respected brands in tennis, and their rackets are the choice of many pro players. Tennis Warehouse takes us inside the Japanese company’s warehouse for a look at their production process, which seamlessly blends a human and robotic workforce.
Clamps are readily available at your local hardware store, but if you’re industrious, you could always make your own. Pask Makes shows off a square clamp he made from steel, and walks through the process of building one with handheld tools, then ramping up production with professional workbench tools.
Ank Creative makes miniature cars out of plastic. We’ve seen the DeLorean they made from a cigarette lighter, now here’s another movie-inspired ride. This time we’ve got a recreation of the Batmobile from Tim Burton’s Batman, carved from black plastic scrounged from a speaker cabinet and a few other bits and bobs.
The Q has built more than their share of unusual bicycles over the years. But unlike their earlier approach to making wheel spokes disappear, this time they actually built a working hubless bike. The trick is that it redirects the chain to the outer edge of the wheel instead of its center.
Have some old closet doors lying around? Guitar builder Tim Sway shows us how he took the thin wood used to make hollow-core doors and used it to build a totally serviceable acoustic guitar. He laminated together strips from the edges of the door with epoxy to create the guitar’s neck and used the main panels for its body.
As we’ve seen before, Ross The Random has a knack for turning bits of hardware into small works of art. In this video, he shows us how he took an old copper nozzle from a MIG welder and transformed it into a badass ring based on the visage of Spider-Man’s terrifying nemesis Carnage.
Captain America’s shield possesses some impressive, but implausible physical characteristics. In addition to its near indestructibility and ability to absorb energy, it can bounce off of surfaces and come back to Cap. JLaservideo wanted to see what it would take to replicate the shield’s key features, including its ricochet.
The wider the tires on your bike, the more traction you’ll get on loose terrain like sand, mud, or gravel. But there are fat-tire bikes, and then there’s BigWR’s Bigfoot bike, which he rigged with the wheels and tires from an off-road truck. We’re guessing it requires quite a bit of leg strength to keep those wheels turning.
Electric scooters usually have tiny wheels, which makes them agile but not exactly grippy. The Q’s oversize scooter has a bit more contact patch thanks to its Formula One wheels, wrapped in slick Pirelli P-Zero tires. It’s powered by a 25kw brushless electric motor and has a battery pack under its riding deck.
A triple-decker crossbow seems like an odd idea, though we guess it could improve your chances of hitting your target. The video game Hood: Outlaws & Legends features a wrist-mounted version of such a device, and now, thanks to Black Beard Projects we have a working, real-world version of this unusual weapon.
Go inside of Italy’s Beta Utensili factory, where they take pieces of raw steel, heat them, hot roll, and machine hammer them into their rough shapes, before cutting them out, sand blasting, grinding, tumbling, and refining their openings before hardening and plating each piece into a finished combination wrench.
When you think about it, it’s pretty impressive how a tape measure can neatly coil up 15 or more feet of metal into a case you can clip onto your belt loop. Science Channel’s Machines: How They Work dissects the modern tape measure to show us its inner workings.
One of the most important parts of any workshop is having some way to store and organize tools. Builder Ben Tardif decided he wanted something that offered flexibility, so he built a wall storage system that uses French cleats for hanging and arranging custom bins and shelves that hold his most frequently used tools.