A mechanical engineering scholar from Binghamton College in New York state has created a useful 3D printed acoustic guitar utilizing a desktop 3D printer from Prusa Analysis. The challenge started when scholar Timothy Tran discovered his dad’s previous guitar within the attic and determined that slightly than trash it or attempt to repair it, he’d observe the third path of constructing a brand new one.
“I noticed it broke and I mentioned, ‘I could make a brand new one for you,’” Tran defined. “I made a decision it might be an excellent factor to only strive.”
On this private challenge, Tran labored with William E. Schiesser, a lecturer on the college’s Faculty of Computing, who offered steering all through the guitar’s growth, serving to him by way of numerous trials and challenges, notably within the design stage. As an example, it took Tran a number of weeks to lock down the precise dimensions of his father’s previous guitar to make sure that the ultimate print can be a devoted copy.
As soon as the preliminary design was full, the following step was to create a 3D mannequin in Fusion 360 software program and put together it for 3D printing. On this preparation course of, Tran needed to subdivide the 3D mannequin into separate sections in order that they could possibly be printed on a compact desktop 3D printer. For instance, the fret board needed to be printed in two items, whereas the again is made up of six items and the entrance plate is 5 items assembled collectively. To facilitate meeting post-printing, Tran built-in particular connecting plates into the items in order that they could possibly be simply put collectively utilizing a press-fit technique.
“Placing it collectively was fairly straightforward. It solely took one or two days,” he defined. “It was extra simply ready for the glue to dry. The longest half was most likely simply ready for elements to print. Greater items may take six or seven hours to print.”
The acoustic guitar elements had been all 3D printed on a Prusa MK4 3D printer, a desktop machine from Prusa Analysis with a construct quantity of 250 x 210 x 220 mm. The corporate has since launched an up to date model of this 3D printer, the MK4S, which options upgrades like 360° cooling, a high-flow nozzle, and a brand new app for distant monitoring.
At this stage, Tran has efficiently created a playable acoustic guitar, nevertheless, there are nonetheless some components that require finessing. As an example, he says that the motion (i.e. the peak of the strings above the fret) is a bit too excessive and thus goes out of tune quicker than a standard acoustic guitar. It is a drawback Tran hopes to unravel in a second prototype.
“I’m simply making an attempt to determine a strategy to make the neck piece a bit extra uniform, and tips on how to get the motion decrease,” Tran elaborated. “Simply to get it to a extra playable really feel, as a result of proper now that is fairly robust to play. It doesn’t really feel that comfy.”
Wanting ahead, Tran and Schiesser hope that their 3D printed acoustic guitar will make the instrument extra accessible to these trying to play. The guitar, which makes use of only a spool and a half of filament and required strings and tuning pegs, prices within the vary of $25 to $30. In different phrases, they hope to make the design and print directions open-source in order that anybody can print it.
“If it had been to change into one thing actually profitable, I need it to be simply one thing that may be free entry for everybody,” Tran mentioned. “Rising up, we didn’t have that a lot cash … so if it’s simply one thing that’s straightforward and accessible for individuals who want it, I feel that’d be actually cool.”
The acoustic guitar is way from the primary 3D printed guitar ever made, however it’s value noting that the majority printed guitars we see are of the electrical selection. Professor Olaf Diegel has been a pioneer of 3D printed electrical guitars, having designed some really spectacular devices, together with a Beatles-inspired bass guitar and a 3D printed wooden guitar. Just lately, he launched his very personal customized 3D printed guitar store, ODD Guitars.