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arXiv · 2510.12823

Production and Manufacturing of 3D Printed Acoustic Guitars

Timothy Tran·William Schiesser
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Abstract

This research investigates the feasibility of producing affordable, functional acoustic guitars using 3D printing, with a focus on producing structural designs with proper tonal performance. Conducted in collaboration with William Schiesser, the study uses a classical guitar model, chosen for its lower string tension, to evaluate the tonal characteristics of a 3D-printed prototype made from polylactic acid (PLA). Due to the build plate size constraints of the Prusa Mark 4 printer, the guitar body was divided into multiple sections joined with press-fit tolerances and minimal cyanoacrylate adhesive. CAD modeling in Fusion 360 ensured dimensional accuracy in press-fit connections and the overall assembly. Following assembly, the guitar was strung with nylon strings and tested using Audacity software to compare recorded frequencies and notes with standard reference values. Results showed large deviations in lower string frequencies, likely caused by the material choice utilized in printing. Accurate pitches were reached with all strings despite frequency differences through tuning, demonstrating that PLA and modern manufacturing methods can produce affordable, playable acoustic guitars despite inevitable challenges. Further research may investigate alternative plastics for superior frequency matching. This approach holds significant potential for expanding access to quality instruments while reducing reliance on endangered tonewoods, thereby encouraging both sustainable instrument production and increased musical participation. This also creates opportunities for disadvantaged communities where access to musical instruments remains a challenge. Keywords: Luthiery, Stereolithography, 3D-Print, Guitar Making

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Timothy Tran, William Schiesser. 2025-10-10. Production and Manufacturing of 3D Printed Acoustic Guitars. https://arxiv.org/abs/2510.12823

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