ukulele

10 Articles

Player Ukulele Pulls Your Strings

September 13, 2024 by 6 Comments

Automated musical instruments aren’t a new idea. From water chimes to player pianos, they’ve been around for a while. But we can’t remember the last time we saw a player ukulele. [Zeroshot] shows us one, though, and it uses an Arduino. You can see and hear it in the video below.

Honestly, with all the stepper motors, linear rails, and belts, we thought it looked like a 3D printer, at least up at the business end. [Zeroshot] thought it would be easier to build a robot than to actually learn to play the instrument. We aren’t sure we agree.

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closeup of an electric ukulele conversion of a toy guitar, showing the four strings and the pickups mounted inside the sound hole

A Kid’s Toy Guitar Turned Into An Electric Ukulele

December 15, 2022 by 8 Comments

With the holiday season fast approaching, there’s a good chance that some well-meaning friend or relative might buy a toy musical instrument for your children, safe in the knowledge that they’ll never have to listen to the results! The sound from these cheap toy guitars is pretty terrible, partly because they’re just too small to tune to a pleasing guitar tuning, so [joekutz] decided to see if one could be turned into an electric ukulele instead.

The first modification on the list was to reduce the string count from six to four, by notching out new positions on the nut and drilling the corresponding fixings on the bridge. One advantage of these cheap instruments is that it’s less of a risk to take tools to the bodywork!
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Don’t Fret Over The Ukulele

March 27, 2021 by 17 Comments

A ukulele is a great instrument to pick to learn to play music. It’s easy to hold, has a smaller number of strings than a guitar, is fretted unlike a violin, isn’t particularly expensive, and everything sounds happier when played on one. It’s not without its limited downsides, though. Like any stringed instrument some amount of muscle memory is needed to play it fluidly which can take time to develop, but for new musicians there’s a handy new 3D printed part that can make even this aspect of learning the ukulele easier too.

Called the Easy Fret, the tool clamps on to the neck of the ukulele and hosts a series of 3D printed “keys” that allow for complex chord shapes to be played with a single finger. In this configuration the chords C, F, G, and A minor can be played (although C probably shouldn’t be considered “complex” on a ukulele). It also makes extensive use of compliant mechanisms. For example, the beams that hit the chords use geometry to imitate a four-bar linkage. This improves the quality of the sound because the strings are pressed head-on rather than at an angle.

While this project is great for a beginner learning to play this instrument and figure out the theory behind it, its creator [Ryan Hammons] also hopes that it can be used by those with motor disabilities to be able to learn to play an instrument as well. And, if you have the 3D printer required to build this but don’t have an actual ukulele, with some strings and tuning pegs you can 3D print a working ukulele as well.

This Ukulele Does Chiptunes, And Not Just Because It’s Made Out Of A Game Boy

October 24, 2018 by 15 Comments

When you think about singer-songwriters, the name Bob Dylan might come to your mind. You might think about Jeff Buckley, you might think about Hank Williams, Springsteen, David Bowie, or Prince. You’d be wrong. The greatest singer-songwriter of all time is Tiny Tim, the guy who looks like Weird Al traveled in time and did a cameo in Baker-era Doctor Who. Tiny Tim had the voice of an angel, because Mammon and Belial were angels too, I guess. Tiny Tim is also the inspiration behind the current resurgence of the ukulele, the one thing keeping the stringed instrument industry alive today.

Even though Tiny Tim passed in 1996, he would have loved to see this project that brings the ukulele into the late 20th century. It’s a Game Boy, DMG-01, transformed into a playable musical instrument. It’s a functional uke, but it also has electronics to turn this into a chiptune machine.

The first goal of this project was to build a functional ukulele out of a Game Boy case. This was simple enough — the neck was 3D printed, the bridge was screwed in, and the case of the Game Boy was reinforced with some PCB material. So far, this is nothing new; you can get a model for a 3D printed ukulele on Thingiverse.

The second goal of this project was to make this ukulele into a chiptune machine. This means designing a pickup for the strings, and since these are nylon you’re not going to do a magnetic pickup on a ukulele. The first solution was an IR reflectance sensor, which worked but had too high of a power draw. The better solution was a standard flex pressure sensor, which worked well enough. This signal is distorted into a square wave that gives a surprisingly Game Boy-like sound. You can check out the video demo below.

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Strike A Chord With This LED Ukulele

May 28, 2018 by 10 Comments

You may laugh off the ukulele as a toy or joke instrument, and admittedly, their starting price tag and the quality that usually comes with such a price tag doesn’t help much to get a different opinion on that. But it also makes it the perfect instrument for your next project. After all, they’re easy to handle, portable, and cheap enough to use a drill and other tools on them without too much regret. Plus, a little knowledge to play can get you far, and [Elaine] can teach you the essential, “all the pop songs use it”, four chords with her Arduino powered LED Ukulele.

As first step, [Elaine] drilled holes in her ukulele’s fingerboard to place some LEDs at all the positions required to play the four chords C, G, Am, and F. Connected to an Arduino attached to the ukulele’s back, each chord will light up its associated LEDs to indicate the finger positions required to play the chord itself. Taking the teaching part a step further, her next step is to extend each LED with a second, light sensing one, and read back if the fingers are placed at the correct position.

[Elaine] has already plans to turn the ukulele into an interactive game next. And if four chords are eventually not enough for you anymore, have a look at another LED based project teaching to play any major, minor and major seventh chord on the ukulele.

Modified Uke Keeps The Beat With A Solenoid

December 2, 2017 by 13 Comments

A classic one-man band generally features a stringed instrument or two, a harmonica in a hands-free holder, and some kind of percussion, usually a bass drum worn like a backpack and maybe some cymbals between the knees. The musician might also knock or tap the sound-boards of stringed instruments percussively with their strumming hand, which is something classical and flamenco guitarists can pull off with surprising range.

The musician usually has to manipulate each instrument manually. When it comes to percussion, [JimRD] has another idea: keep the beat by pounding the soundboard with a solenoid. He built a simple Arduino-driven MOSFET circuit to deliver knocks of variable BPM to the sound-board of a ukulele. A 10kΩ pot controls the meter and beat frequency, and the sound is picked up by a mic on the bridge. So far, it does 3/4 and 4/4 time, but [JimRD] has made the code freely available for expansion. Somebody make it do 5/4, because we’d love to hear [JimRD]  play “Take Five“.

He didn’t do this to his good uke, mind you—it’s an old beater that he didn’t mind drilling and gluing. We were a bit skeptical at first, but the resonance sweetens the electromechanical knock of the solenoid slug. That, and [JimRD] has some pretty good chops. Ax your way past the break to give it a listen.

Got a cheap ukulele but don’t know how to play it? If you make flames shoot out from the headstock, that won’t matter as much. No ukes? Just print one.

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Mad Max Inspired Flamethrower Ukulele

June 7, 2015 by 21 Comments

The new Mad Max movie is getting a lot of buzz, and a few people are calling it a modern classic. There’s a flamethrower guitar in the movie, which means it’s time for cosplay accouterments. Our ‘ol buddy [Caleb] loves flamethrowers and poofers, so hacking together a Doof Warrior inspired flamethrowing ukulele was natural for him.

The fuel for this uke is a can of butane actuated with a caulking gun. This setup is actually pretty clever; by removing the locking tab on the caulking gun, butane is released when the gun’s trigger is squeezed, but stops when the trigger is released. The igniter is a simple grill igniter is used to light the gas.

[Caleb] is rather famous for his flamethrowing creations. His life-size fire-breathing piranha plant uses a similar setup to shoot fire.

Video below.

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