Category Archives: motor

5 Kilowatts In A 3D Printed Jet Boat

Radio control projects used to be made of materials such as metal or wood, and involve lots of hand crafted parts. That’s still one way to go about things, but 3D printing has become a popular tool in recent years. [RCLifeOn] has been working on a 3D printed jet boat, …read more

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Posted in 3d printer, 3d Printer hacks, jet boat, motor, turbine | Leave a comment

Axiom, A 100+kW Motor Controller for Making Big Motors Move

We’ve seen a lot of motor driver boards for robots and the odd electric skateboard. What we haven’t see a lot of is one big enough to drop into an electric vehicle. 

The Axiom motor controller was a winner of the bootstrap contest and is a Finalist in the 2019 …read more

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Posted in 2019 Hackaday Prize, axiom, driver, ev, motor, The Hackaday Prize, vesc | Leave a comment

A (Mostly) 3D Printed Servo/Gear Reduction

This servo/gear reduction was assembled with almost all 3D-printed parts. Apart from a brushed 36 V DC-motor, a stainless steel shaft, and screws for holding the servo together, the only other non-printed part is the BTS7960B motor driver.

Some interesting stats about the plastic servo – its stall torque is …read more

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Posted in 2019 Hackaday Prize, 3d Printer hacks, Arduino Hacks, gear, Hackaday Prize, motor, servo | Leave a comment

(Mis)use This Part to Attach 3D Printed Stuff to a Shaft

Interfacing a shaft to a 3D printed gear doesn’t have to be tricky. [Tlalexander] demonstrated a solution that uses one half of a spider coupling (or jaw coupling) to create an effective modular attachment. The picture above (and this older link) shows everything you need to know: the bottom of …read more

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Posted in 3d printed, coupling, gear, gearbox, jaw coupling, motor, parts, robots hacks, shaft, spider coupling | Leave a comment

Spin Me Right Round, Baby: Generator Building Experiments for Mere Mortals

How many of you plan to build a wind-powered generator in the next year? Okay, both of you can put your hands down. Even if you don’t want to wind your coils manually, learning about the principles in an electric generator might spark your interest. There is a lot of …read more

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Posted in 3-phase, alternating current, alternative fuel, alternative power, current, dynamo, Educational, generation, generator, how-to, magnet, motor, power, three-phase, turbine, wind | Leave a comment

Deducing Stepper Motor Wiring

There are a lot of fun projects you can do with stepper motors salvaged from old printers or disk drives. However, it isn’t always clear how to connect to some strange motor with no markings or schematics. [Corvetteguy50] has a video showing his trick for working out the connections easily, …read more

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Posted in motor, robots hacks, stepper motor, wiring | Leave a comment

Trick Shot Bot Flings Balls into Wine Glass Every Time

We’ve heard of beer pong, but we’re not sure we’ve heard of wine pong. And certainly never wine pong automated with a ping pong ball throwing robot like this one.

There’s not a huge amount of detail available in the video below, and no build log per se. But …read more

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Posted in arduino, ballistic, beer pong, misc hacks, momentum, motor, ping pong, release | Leave a comment

Palm-Sized Gatling Gun Has 32 Mini Elastics With Your Name On Them

One thing 3D printers excel at is being able to easily create objects that would be daunting by other methods, something that also allows for rapid design iteration. That’s apparent in [Canino]’s palm-sized, gatling-style, motorized 32-elastic launcher.

The cannon has a rotary barrel driven by a small motor, and a clever sear design uses the rotation of the barrels like a worm gear. The rotating barrel has a spiral formation of hooks which anchor the stretched elastic bands. A small ramp rides that spiral gap, lifting ends of stretched bands one at a time as the assembly turns. This movement …read more

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Posted in 3d printed, continuous rotation, continuous rotation servo, elastic, elastic band, gatling, motor, servo, shooter, weapons hacks | Leave a comment

A Quartet of Drills Put The Spurs To This Electric Utility Vehicle

Low-slung body style. Four-wheel drive. All electric drivetrain. Turns on a dime. Neck-snapping acceleration. Leather seating surface. Is it the latest offering from Tesla? Nope; it’s a drill-powered electric utility vehicle, and it looks like a blast to drive.

Surprisingly, this isn’t a just-for-kicks kind of build. There’s actually a practical reason for the low form factor and long range of [Axel Borg]’s little vehicle. We’ll leave the back story to the second video below, but suffice it to say that this will be a smaller version of the crawler NASA used to roll rockets out to the launch pad, …read more

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Posted in drill, drive, misc hacks, motor, pwm, transport, transportation hacks, utility vehicle | Leave a comment

Brushless Motor Thrust Stand Provides Useful Data

When designing model aircraft of any shape or size, it’s useful to know the performance you can expect from the components chosen. For motors and propellers, this can be difficult. It’s always best to test them in combination. However, with the numbers of propeller and motor combinations possible, such data can be tough to come by. [Nikus] decided it would be easier to just do the testing in-house, and built a rig to do so.

The key component in this build is the strain gauge, which comes already laced up with an Arduino-compatible analog-digital converter module. Sourced for under $10 …read more

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Posted in adc, brushless motor, motor, static test, static testing, strain gauge, transportation hacks | Leave a comment