Metal Binder Jetting
Automotive Polymers

It’s Called the Javalele: A 3D Printed Instrument Combines Coffee & Music

Share this Article

As anybody who has ever heard a ripping guitar solo knows, anything (including the air) can become an instrument. Instructables user John Granzow has gone one step further and made a substitute that can actually play. One of the traits that makes designers a ‘different’ sort of people is the ability to see connections between what others see as unrelated objects. When Graznow saw a bin full of discarded portafilters, he didn’t see espresso, he saw music.jj

The portafilters came from expired espresso machines and immediately called to mind the frame of a banjo for Lilliputians. As a result of this visual connection, Granzow “decided to make appendages to transform this transporter of coffee into a transmitter of the plucked string.” After all, music and coffee go together beautifully.

The next step was to create a soundboard wrapper for the instrument. He created a 3D model and has provided the STL file for those who have a portafilter of the same dimensions as the one he used. The soundboard is designed to snugly fit over the chamber that previously held the coffee grounds allowing it to act as a resonant chamber. The diminutive fret board for the neck was also created for 3D printing.

The muses of music were in Granzow’s corner when he approached the creation of the audio hook up as the 3.5 mm audio connector from Philmore fit like a dream into the coffee outlet in the portafilter. Since he had calculated the distance for the frets necessary to make the neck functional for playing, he was able to then take seven A4 dowel pins and press them into the depressions that had been left in the print.

FKB4JB9I5BLPOW8.LARGEOf course a Javalele doesn’t assemble itself and so the next step was the attach the piezo disc to the audio jack placed inside the portafilter. After testing to make sure the connection is clean, the piezo is glued into place directly behind the hole left in the soundboard. For the bridge of the instrument, Granzow has provided an STL file but has also noted that a wooden bridge could be used as well.

When breaking new ground, one of the designer’s best resources is the modification of existing parts to new uses. Granzow pulled some ¼ size violin pegs together so that the instrument could remain true to the notes (important both for actual playing and so as to not make enemies of all who hear it). The pegs were still too large to be immediately functional and had to be adapted by drilling new holes for the strings.

At long last, when the strings are attached and the instrument tuned, you are ready to pluck out a tiny version of “Hello Hawaii” or possibly “Stairway to Heaven,” depending on your ambitions. I don’t expect that this will replace any current instruments in any garage bands in the near future. However, given the movement to create lower-cost instruments out of recycled materials it provides a prototype for the addition of 3D printing to the toolkit of the ‘junk’ musician. So keep your eyes open the next time you are at a flea market or junk store…you could be right in front of the perfect frame for something even bigger.

Is the Javalele an instrument that might hit the right notes for you? Let us know if you might make your own over at the 3D Printed Javalele forum thread at 3DPB.com.

javalele

Share this Article


Recent News

3D Printing News Briefs, August 13, 2022: Natural Fibers, Robotic Gripper, & More

3D Printing News Unpeeled, Live with Joris Peels Friday 12th of August



Categories

3D Design

3D Printed Art

3D Printed Food

3D Printed Guns


You May Also Like

“We Have Limitless Opportunities to Fuel Growth” Says Randy Altschuler after Xometry’s Q2 Earnings

The last few years have been rough for the capital market. Between the Covid-related economic slowdown, inflation’s impact on stock returns, and an ongoing war in Ukraine, the stock market...

Metal 3D Printing Firm Velo3D Announces Impressive Q2 Earning

US financial markets appear to be in a state of limbo. For one thing, there are few clear opinions circulating concerning the question as to whether the American economy is,...

3D Printing News Unpeeled, Live with Joris Peels Thursday 11th of August

Today we’re going to discuss 3D printed sunglasses from Givenchy, 3D printing drone swarms, more sustainable 3D printing materials for buildings by ORNL, 3D printing earnings season and more.  

3D Printing News Unpeeled, Live with Joris Peels – Wednesday 10th of August

Today we’re going to discuss 3D printed razors, CERN and more in this live cast of the 3D Printing news.