Sometimes, the best ideas are those that have time to ripen and develop over time, like a fine wine. Sure the ‘Eureka’ type of vision is flashier and makes better cinema, but not every product is the result of such moments of divine inspiration. In the case of Charlie Lesoine’s arpeggiator, the process from initial interest to functioning design took place over a period of six years. Lesoine described the journey in an interview with 3DPrint.com:
“It was designed slowly. I need time to step away and think about things. The design had to stew. I first had the desire to create an arpeggiator in late 2009 and worked very sporadically through dozens of different iterations until arriving at a design I really liked in 2013. Around this time the team came together and the project became a group effort. We first created a 3D model in Cinema 4D extracted from my Illustrator vectors which focused only on the appearance of the outer shell, and all subsequent designs for production were created in Solidworks.”
So what exactly was the result of all of this rumination and experimentation?
An arpeggiator is a synth instrument that takes the notes from an assigned chord and repeats them in a pattern, usually in an arpeggio, at a particular tempo set by the user. It can do this either in response to the user holding down the desired notes or it can be set to repeat those notes as if in a loop. Lesoine explained his interest in creating such a machine:
“It started because I wanted to be able to create, save, and chain melodies together in an immediate way. So I set out to devise a set of features I decided were useful for achieving this. The purpose of the interface is in enabling fast melodic improvisation by creating a looping sequence of notes in real time.”
If you are not a musician, this may sound like an odd desire, but for many musicians having this kind of simple way to generate beats and automatic accompaniment can be very helpful. The difficulty for Lesoine lay in the inability to locate a machine that suited his needs and met his specifications.
“I had a Casio keyboard which had an arpeggiator and drum beats built in when I was 3 years old, ever since I’ve been fascinated with musical instruments,” Lesoine explained. “As a musician this is something that I’ve always wanted: A simple, immediate way to play with and save a melody without diving through menus on a device or messing with a computer. I looked around and found that the instrument I envisioned wasn’t in any store, so I decided to make one.”
When he was ready to turn his design into a physical product, he turned first to Shapeways and then later to his own MBot 3D printer. It took about four hours to print the nine pieces needed to put together the arpeggiator and once the electronics were added, the fully assembled creation was ready to make music.
It has done more than that, however. This creation inspired Lesoine to start his own company called Tangible Instruments with a mission to create a family of instruments that follow a consistent, clean design aesthetic and user experience, each focused on a fundamental musical element like harmony, melody, and rhythm. With an emphasis on accessibility and high-quality user interface, this instrument clearly reflects the value added by the lengthy contemplation of a design problem.
Would a synth like this help you to make music? Join the conversation at the Tangible Instruments 3D Printed Arpeggio forum thread at 3DPB.com.
Subscribe to Our Email Newsletter
Stay up-to-date on all the latest news from the 3D printing industry and receive information and offers from third party vendors.
Print Services
Upload your 3D Models and get them printed quickly and efficiently.
You May Also Like
3D Printing News Briefs, November 5, 2026: Tungsten, Color Mixing, Prosthetic Socket, & More
We’re starting with business from Xact Metal, 3D Systems, and Freemelt, and moving on to materials from Snapmaker and hybrid manufacturing with Eplus3D. We’ll end with a custom prosthetic socket,...
3D Printing Financials: Protolabs Hits Record Q3 Revenue, 3D Printing Rebounds
In Q3 2025, Protolabs‘ 3D printing revenue fell by around 6 percent year-over-year (YOY), and in Q2 2026, it declined another 2.6 percent to $20.7 million. In Q3 2026, however,...
3D Printing Financials: Align Tops $1B in Q3, Will Launch 3D Printed Sports Guard
Align Technology (Nasdaq: ALGN) is expanding its use of direct 3D printing beyond orthodontic treatment with a new line of custom sports mouthguards, while reporting third-quarter 2026 revenue of $1...
3D Printing Financials: Medical Becomes the Driving Force Behind Materialise
Materialise (Euronext Brussels & Nasdaq: MTLS) is seeing continued growth in its medical 3D printing business and signs of a recovery in manufacturing, but that progress has not been enough...















































