Category Archives: stepper

Rock ‘n Roll With 3D-Printed Tonewheels

What can you do with ferromagnetic PLA? [TheMixedSignal] used it to give new meaning to the term ‘musicians’ gear’. He’s made a proof of concept for a DIY tone generator, which is the same revolutionary system that made the Hammond organ sing.

Whereas the Hammond has one tonewheel per note, …read more

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Posted in arduino, Arduino Hacks, ferrous filament, karn evil 9, musical hacks, pickup winder, Proto-Pasta, stepper, tonewheel | Leave a comment

Wire Bender Aims to Take Circuit Sculptures To The Next Level

It doesn’t seem as though bending wire would be much of a chore, but when you’re making art from your circuits, it can be everything. Just the right angle in just the right place can make the difference between a circuit sculpture that draws gasps and one that’s only “Meh.” …read more

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Posted in anvil, art, bending, Circuit Sculpture, cnc, cnc hacks, mandrel, stepper, wire | Leave a comment

Syringe Pump Turns CNC Machine Into A Frosting Bot

“Amazing how with only the power of 3D-printing, two different computers, hundreds of dollars in CNC machinery, a lathe, and modern microcontroller magic, I can almost decorate a cupcake as well as a hyperactive ten-year-old.”  We can think of no better way to sum up [Justin]’s experiment in CNC frosting …read more

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Posted in bioprinting, cnc hacks, cooking hacks, dispenser, extruder, frosting, hydrogel, stepper, syringe pump | Leave a comment

What Can You Learn From an Eggbot?

An eggbot is probably the easiest introduction to CNC machines that you could possibly hope for, at least in terms of the physical build. But at the same time, an eggbot can let you get your hands dirty with all of the concepts, firmware, and the toolchain that you’d need …read more

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Posted in cnc, cnc hacks, easter, eggbot, grbl, grbl shield, Hackaday Columns, hardware, Holiday Hacks, Interest, machine, stepper, stepper motor | Leave a comment

Delta Bot Plucks Out Tunes on a Mandolin

Is there no occupation safe from the scourge of robotic replacement? First it was the automobile assemblers, then fast food workers, and now it’s the — mandolin players?

Probably not, unless [Clayton Darwin]’s mandolin playing pluck-bot has anything to say about it. The pick-wielding delta-ish robot can be seen in action in the video below, plucking out the iconic opening measures of that 70s prom-theme favorite, “Colour My World.” The robot consists of two stepper motors connected to a hinged wooden arm by two pushrods. We had to slow the video down to catch the motion, but it looks like …read more

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Posted in delta, kinematics, mandolin, musical hacks, pick, plectrum, robots hacks, stepper, string instrument | Leave a comment

Smooth Moves from Cheap Motors

Building an electric motor isn’t hard or technically challenging, but these motors have very little in the way of control. A stepper motor is usually employed in applications that need precision, but adding this feature to a motor adds complexity and therefore cost. There is a small $3 stepper motor available, but the downside to this motor is that it’s not exactly the Cadillac of motors, nor was it intended to be. With some coaxing, though, [T-Kuhn] was able to get a lot out of this small, cheap motor.

To test out the motors, [T-Kuhn] built a small robotic arm. …read more

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Posted in arm, cheap, controller, ESP32, inverse kinematics, motor, robot, robots hacks, stepper | Leave a comment

Bot Makes Etch A Sketch Art In One Continuous Line

Introduced in 1960 for the princely sum of $2.99 ($25.00 today), Etch A Sketch was to become a standard issue item for the Baby Boomers’ toy box. As enchanting as the toy seems, it’s hard to see why it had staying power: it was hard for young fingers to twirl the knobs, diagonal lines and smooth curves required a concert pianist’s fine motor control, and whatever drawings we managed to make were erased at the slightest jostle of the tablet.

Intent on righting these wrongs, [Sunny Balasubramanian] not only motorized an Etch A Sketch, but he’s also given it a …read more

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Posted in Canny, edge detection, etch a sketch, open cv, plotter, Raspberry Pi, stepper, toy hacks, X-Y | Leave a comment

Automated Turntable For 3D Scanning

Those just starting out in 3D printing often believe that their next major purchase after the printer will be a 3D scanner. If you’re going to get something that can print a three dimensional model, why not get something that can create said models from real-world objects? But the reality is that only a small percentage ever follow through with buying the scanner; primarily because they are notoriously expensive, but also because the scanned models often require a lot of cleanup work to be usable anyway.

While this project by [Travis Antoniello] won’t make it any easier to utilize scanned …read more

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Posted in easydriver, Photogrammetry, stepper, turntable | Leave a comment

Light Painting Animations Directly From Blender

Light painting: there’s something that never gets old about waving lights around in a long exposure photo. Whilst most light paintings are single shots, some artists painstakingly create frame-by-frame animations. This is pretty hard to do when moving a light around by hand: it’s mostly guesswork, as it’s difficult to see the results of your efforts until after the photo has been taken. But what if you could make the patterns really precise? What if you could model them in 3D?

[Josh Sheldon] has done just that, by creating a process which allows animations formed in Blender to be traced …read more

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Posted in automate, blender, defaultio, digital cameras hacks, Josh Sheldon, led, led hacks, light painting, stepper | Leave a comment

Hackaday Links: July 29, 2018

Another holy scroll for the Church of Robotron. PoC || GTFO is a semi-annual journal of hardware exploitation, and something you must read. About a year ago, No Starch Press released the first Bible of PoC || GTFO, and now it’s time for a new testament. PoC || GTFO Volume 2 is out now, covering Elegies of the Second Crypt War to Stones from the Ivory Tower, Only as Ballast. It’s still Bible-shaped, with a leatherette cover and gilt edges.

KiCad version 5 is out, and you know what that means: It’s time to start on version 6. To …read more

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Posted in Hackaday Columns, Hackaday links, KiCAD, mergers and acquisitions, nxp, PoC || GTFO, qualcomm, stepper, ustepper | Leave a comment