InstrumentLIBRARY
4/4 Violin (Logic violin), a 3D-printed violin
Image: still from Logic LIU's YouTube video
Strings · Violin

4/4 Violin (Logic violin)

A full-size printed violin with a geared string tensioner and optional carbon rod

Designed by viu.logic, published on MakerWorld

Standard Digital File License No commercial use Build info 5/5

Licence verified on MakerWorld, 20 October 2026.

Get the files on MakerWorld ↗ Watch the video
Size
Full size (4/4)
Strings
4/4 strings at least 545 mm (A, D) and 530 mm (E, G)
Plates
Two required, one optional
Fit
Tight 0.2 mm clearances: calibrate flow first
Difficulty
Hard
On MakerWorld
5,478 likes · 4,755 downloads · 1,578 prints · 706 comments (as of 20 Oct 2026)

About the 4/4 Violin

One of the most-printed violins on MakerWorld, with well over a thousand makes. The designer's page is bilingual (Chinese and English). The instrument has gone through many versions. Recent ones add a redesigned geared string tensioner that works with most shop-bought 4/4 strings, an optional chin rest and shoulder rest, and a smoother fingerboard print.

Check your strings before buying. They must be at least 545 mm long for A and D and 530 mm for E and G, and older versions of the files need longer strings. The parts are designed to fit tightly, with most gaps only 0.2 mm, so the designer recommends a flow-rate calibration first. Only the first two print plates are needed. The third holds optional alternative orientations: a horizontally printed fingerboard if your bed adhesion is weak (it leaves a scaly texture that's worth sanding), and a neck printed at 45° for a smoother finish.

An 8 mm carbon-fibre rod is recommended for long-term durability (5.5 mm is an option). The videos show the designer's son and a friend playing it. An assembly PDF is on the MakerWorld page.

Licence note. MakerWorld Standard Digital File licence (personal use), so we don't rehost its photos.

What you'll need

Printed parts

  • Plates 1 and 2: body, neck, fingerboard, string tensioner, chin rest and shoulder rest
  • Optional plate 3: alternative fingerboard and neck orientations

Bought parts

  • 4/4 violin strings, long enough (A/D ≥ 545 mm, E/G ≥ 530 mm)
  • An 8 mm carbon-fibre rod (recommended; 5.5 mm optional)
  • A bow and rosin

Tools

  • A calibrated printer (flow rate)
  • Sandpaper

Build overview

Print settings

  • Calibration: Run a flow-rate calibration; fits are 0.2 mm
  • Fingerboard: Vertical (smoothest) or horizontal (easier adhesion, sand after)
  • Neck: 45° for the best surface, if bed adhesion allows

Videos

Play video: Introducing violin v7.31c (loads YouTube)
Introducing violin v7.31c, Logic LIU (the designer). Plays from youtube-nocookie.com after you click.
Play video: The 4th version being played (loads YouTube)
The 4th version being played, Logic LIU (the designer). Plays from youtube-nocookie.com after you click.

The videos don't load from YouTube until you press play. Video thumbnails are © their creators.

Version 7.1b violin demo (YouTube) by the designer

Photos

The MakerWorld licence (Standard Digital File License) doesn't allow rehosting, so the photos stay on MakerWorld. See them on MakerWorld ↗

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