Incomplete projects

Instruments 32

3D-printed 29

Woodwinds

• C Clarinet Remix ↗by Gubbledenut · Printables

  Concerns: Short print notes and one photo; no assembly or key-fitting guide, and no one has shown it played yet.

  Details page →
• 3DP minisax / xaphoon / pocketsax ↗by mldotjs · Thingiverse

  Concerns: The designer isn't sure the intonation is right and asks a sax player to test it; the only image is a screenshot.

  Details page →
• Gemshorn ↗by Untemperedsteel · Printables

  Concerns: New in August 2026; the designer calls it a starting point rather than a tuned scale, so you ream the finger holes and tune it by ear. No audio or video yet.

  Details page →

Strings

• WIP Electric Upright Bass ↗by Epiccraftful · Thingiverse

  Concerns: Designer marked it a work in progress in 2019; no pickup or end-pin, the rod holes are undersized, and no one has shown it played.

  Details page →
• Cybertwee Electric Baroque Lute (20 strings) ↗by Schreibmaschine · Printables

  Concerns: The designer's PLA test print bent too much to play well; a stiffer build hasn't been shown working yet.

  Details page →
• Stick Dulcimer version 1.1 ↗by Untemperedsteel · Printables

  Concerns: New in October 2026 with a thorough write-up, but no one has shown one built and played yet.

  Details page →
• Fretless Balalaika ↗by danya · Printables

  Concerns: An early school design; the neck joint needs heavy sanding, and there's no audio, video or report of how it plays.

  Details page →
• Playable 3D printable harp ↗by Grhmhome · Printables

  Concerns: The designer's demo video is no longer online, leaving one photo and a short description.

  Details page →
• Cigar Box Ukulele Remix ↗by mrpaine · Thingiverse

  Concerns: A remix that splits the neck of toolinc's Cigar Box Ukulele; no instructions and no photos of it built or played.

• The 3D-Printed Medieval Lute ↗by Natecus · MakerWorld

  Concerns: The designer pitches it for cosplay and display; the printed pegs slip, and there's no video or audio of it played.

  Details page →
• Neopolitan Mandolin ↗by Zippitybamba · Thingiverse

  Concerns: The designer concluded PLA is the wrong material: string tension bends the neck and lifts the strings well above the frets. The Steel String Mandolin in the main library is a working alternative.

  Details page →
• F-F-Fiddle ↗by OpenFabPDX · Printables

  Concerns: Superseded by the same designer's Modular Fiddle 4-String Violin V4; he now calls the F-F-Fiddle 'a mediocre violin at best'. We recommend the Modular Fiddle instead.

  Recommended instead: Modular Fiddle 4-String Violin V4

  Details page →

Brass

• Overly-Complicated Trumpet (fully 3D printed) ↗by GCV3D · Printables

  Concerns: The designer describes it as an ongoing project and is still working on bell designs for a better sound; the promised video hasn't appeared yet.

  Details page →
• Printable Trumpet Version 2 ↗by LtDan · Thingiverse

  Concerns: Updated to the designer's Version 2 (2015), but he says it still doesn't sound great, and there's no build guide; the main library has a better-tested printed trumpet.

  Details page →

Percussion

• Print in Place Kalimba ↗by Bradley Corl · Printables

  Concerns: The designer's first print cracked and the promised remake photos and video haven't appeared; the tines come from a bought kit.

  Details page →

Double reed

• Baroque oboe (modern pitch) ↗by Zawazawah · Thingiverse

  Concerns: Needs hand-made brass keys and baroque reeds; the designer doesn't say it plays, and there's no video or audio yet.

  Details page →
• 3D-Fagottini (FHNW fagottino project) ↗by FHNW · DaSCH repository

  Concerns: A research dataset of CT scans of six historical fagottini rather than a build project: no build, reed or key instructions, and no one has shown it played.

• A whole friggin' bassoon ↗by OprahsFavoriteDeathMetal · Thingiverse

  Concerns: 3D scans of four bassoon joints with the keys removed, shared as a first step toward designing replacement keys; not a playable instrument as it stands.

• 3D-Printed Membrane-Reed Crumhorn V1.2 ↗by Untemperedsteel · Printables

  Concerns: New in August 2026; the designer says it isn't tempered, so it won't play in tune with other instruments. No audio or video yet.

  Details page →

Lip-reed (brass family)

• SAM 230 Soprano Cornetto ↗by CrankyLinuxUser · Printables

  Concerns: A measured museum copy; no fingering or tuning notes and no video or audio of it played yet.

  Details page →
• DidgeriFar (Didgeridoo Shofar) Compatible with Trumpet Mouthpiece ↗by Poikilos · Printables

  Concerns: The notes cover gluing and painting but not the sound; no video or reports of it played yet.

  Details page →

Folk & world

• 3D Printed Karinding (Sundanese Jaw Harp) ↗by RK23 · Printables

  Concerns: The designer calls it an attempt; a very short description with no instructions, and no one has shown it working yet.

• "HarmonyTune" Nose Flute ↗by Cson · Printables

  Concerns: Similar to the Nose Flute - Nasenflöte in the main library, which is the tested design; this one has a short promotional description with no build notes, audio or video. We recommend that one instead.

  Recommended instead: Nose Flute - Nasenflöte

  Details page →
• Hurdy Gurdy - 3D Print/Wood Hybrid ↗by Marco Cammozzo · MyMiniFactory

  Concerns: Only the printed parts are provided; you design and build the wooden body yourself without plans, and no one has shared a finished build yet.

  Details page →

Novelty

• 3D Printed One Man Band Musical Instrument ↗by 3DSage · Cults3D

  Concerns: A small novelty kit that fits a 10-inch bed; the designer's own demo video says the sound isn't good.

  Details page →

Electronic

• Rebo-One - Arduino Nano ESP32 MIDI Keyboard ↗by Kevin McAleer · Printables

  Concerns: The designer marks it a work in progress, and it's a MIDI controller that needs a separate synth or computer to make sound.

Mechanical

• Robotic Tongue Drum Parts and Model ↗by Jeremy Cook · Printables

  Concerns: The files are mounts only; the build is in a separate article and needs an Arduino Opta and a bought steel tongue drum.

  Details page →
• Music Box with Hollow Cylinder ↗by gringer · Printables

  Concerns: A minor remix of the Parametric Music Box (hollow-ish cylinder, simpler pins); the designer says the included cylinder only demonstrates the mechanism and doesn't play a tune. We recommend the Parametric Music Box instead.

  Recommended instead: Parametric Music Box

  Details page →
• Music Box for 30-note Paper Punch Tape Movement ↗by clockfort · Thingiverse

  Concerns: A case for a bought 30-note movement; a two-sentence description, no assembly notes, and a render rather than a photo.

  Details page →

Other DIY 3

Electronic

• DIY VCO: analog synth oscillator series ↗by Moritz Klein (with Erica Synths) · YouTube

  Concerns: An excellent free course, but it builds one synth module (a breadboard oscillator) rather than a complete playable instrument.

  Details page →
• pico_test_synth ↗by todbot · GitHub

  Concerns: A test board for synth experiments, not a finished playable synth.

• Look Mum No Computer synth modules (8-step sequencer keyboard, CEM3340 VCO and others) ↗by Look Mum No Computer (Sam Battle) · lookmumnocomputer.com

  Concerns: Separate single modules, not one complete synth, so you'd piece one together yourself; some add-ons go to Patreon supporters first.

Accessories 17

3D-printed 15

Double reed

• Bassoon Reed Drying Rack ↗by Horhee · Printables

  Concerns: A very short description and no photo of it holding reeds; no one has reported printing it yet.

• Drying rack for Baroque Bassoon reeds ↗by RexConstenla · Thingiverse

  Concerns: The designer asks to hear from anyone who prints it, so it looks untested; a two-sentence description.

• Bassoon Reed Soaker ↗by InnRaum³ / Makerspace Ried · Printables

  Concerns: No description yet, and no one has reported printing it.

• Holder for double reeds (music-stand, magnetic) ↗by Panik · Printables

  Concerns: No description, so the magnet size and fit aren't stated; no one has reported printing it yet.

• Bassoon Hand Crutch ↗by Josh1297 · Thingiverse

  Concerns: The only image is a CAD render, the tube may need sanding to fit, and no one has reported printing it yet.

  Details page →
• Bassoon boot joint cap ↗by OprahsFavoriteDeathMetal · Thingiverse

  Concerns: The designer says he doesn't know whether it fits every bassoon or is safe to use.

  Details page →
• Bassoon sheet music holder mount ↗by Payerl · Thingiverse

  Concerns: A one-sentence description, made for one bassoon brand (Moennig); a render rather than a photo, and no reported prints.

• Oboe reed tip cutter (adjustable) ↗by rodjford · Cults3D

  Concerns: A good parts list, but the only image is a render and no one has shown it built or in use yet.

  Details page →

Woodwinds

• Slip on Clarinet Ligature ↗by JesseBosveld · Printables

  Concerns: Made for a Yamaha 2* mouthpiece, with no other description; no one has shown it holding a reed well yet.

Brass

• Trumpet valve-oil bottle cap (Víčko na olej na trubku) ↗by Jedla · Printables

  Concerns: Only a one-line summary in Czech, and no reported prints yet.

• Mundstück Alphorn (alphorn mouthpiece) ↗by flatisboring · Printables

  Concerns: No rim or cup measurements, sound sample or reported prints yet.

  Details page →

Strings

• Replacement Nerdy Gurdy crank ↗by Jakub · Printables

  Concerns: A very short description for a niche replacement part; no reported prints yet.

  Details page →

Percussion

• Ratcheting Drum Key ↗by Bryce Frank · Printables

  Concerns: A remix of a generic ratchet with a very short description; no evidence yet that it fits drum lugs well.

• HandPan wall mount ↗by Jeffey Lawler · Printables

  Concerns: No description yet, and nothing about the hardware or the weight it can hold.

General

• Metronome Engine (mechanical, working) ↗by brlaw (Brian Law) · Thingiverse

  Concerns: Built as a clock-pendulum test rig rather than a metronome: no tempo scale and about 2.5 minutes of run time. The designer says it could be adapted.

  Details page →

Other DIY 2

Strings

• pTuna ↗by make-42 · GitHub

  Concerns: Marked alpha by the designer; thin docs, no enclosure files and no video of it working yet.

General

• Arduino Metronome ↗by csurgay · Instructables

  Concerns: The posted code is cut off, and the author asks readers to request the full code by email.