Backyard Rope Tow from Spare Parts
A few years ago, [Jeremy Makes Things] built a rope tow in his back yard so his son could ski after school. Since the lifts at the local hill closed …read more Continue reading Backyard Rope Tow from Spare Parts
Category Archives: motor
You’ve Got All Year To Print This Marble Machine Ornament For Your Christmas Tree
Most Christmas ornaments just hang there and look pretty. [Sean Hodgins] decided to whip up something altogether fancier and more mechanical. It’s a real working marble machine that hangs from …read more Continue reading You’ve Got All Year To Print This Marble Machine Ornament For Your Christmas Tree
Investigating Electromagnetic Magic in Obsolete Machines
Before the digital age, when transistors were expensive, unreliable, and/or nonexistent, engineers had to use other tricks to do things that we take for granted nowadays. Motor positioning, for example, …read more Continue reading Investigating Electromagnetic Magic in Obsolete Machines
Going Brushless: Salvaging A Dead Drill
Let’s face it—seeing a good tool go to waste is heartbreaking. So when his cordless drill’s motor gave up after some unfortunate exposure to the elements, [Chaz] wasn’t about to …read more Continue reading Going Brushless: Salvaging A Dead Drill
Turning a Lada Into An EV With 50 Cordless Drills, Because Why Not?
[Garage 54] is no stranger to vehicle-related projects of the “because why not?” variety, and their latest is using 50 cordless drills combined into a monstrous mega-motor to turn a …read more Continue reading Turning a Lada Into An EV With 50 Cordless Drills, Because Why Not?
Behold a Geared, Continuously Variable Transmission
When it comes to transmissions, a geared continuously-variable transmission (CVT) is a bit of a holy grail. CVTs allow smooth on-the-fly adjustment of gear ratios to maintain a target speed …read more Continue reading Behold a Geared, Continuously Variable Transmission
Electric Bike Uses No Electronics, Weird Motor
E-bikes combine a bicycle with a big lithium battery, a speed controller, and a motor. What you get from that combination is simple, efficient transportation. [Tom Stanton] wanted to build …read more Continue reading Electric Bike Uses No Electronics, Weird Motor
Chocolate-Coating Machine Mk. 2: the Merry-Go-Round
This holiday season, [Chaz] wanted to continue his family’s tradition of enrobing a little bit of everything in dark chocolate, and built an improved, rotating chocolate-coating machine. You may remember …read more Continue reading Chocolate-Coating Machine Mk. 2: the Merry-Go-Round
Small Volumetric Lamp Spins at 6000 RPM
Volumetric displays are simply cool. Throw some LEDs together, take advantage of persistence of vision, and you’ve really got something. [Nick Electronics] shows us how its done with his neat …read more Continue reading Small Volumetric Lamp Spins at 6000 RPM
A Wobble Disk Air Motor with One Moving Part
In general, the simpler a thing is, the better. That doesn’t appear to apply to engines, though, at least not how we’ve been building them. Pistons, cranks, valves, and seals, …read more Continue reading A Wobble Disk Air Motor with One Moving Part