Guide · 3D-printed records

CAN YOU 3D PRINT
A PLAYABLE RECORD?

Yes. A 3D printer can cut a real, stylus-readable groove — as long as you respect the physics. This guide covers groove geometry, resin vs PLA, layer height, and the playback quality you should actually expect.

The short answer

A record works because a spiral groove physically encodes a waveform, and a stylus reads that displacement back as sound. Nothing about that requires a pressing plant — it requires resolution. A 3D printer that can hold roughly 0.08mm layers and clean vertical walls can produce a disc that plays. What you lose is bandwidth: printed discs typically sit around 350Hz–4,868Hz depending on method, against vinyl's 20Hz–20kHz. Think early phonograph, not hi-fi.

How it's done

FROM WAVEFORM TO GROOVE

  1. 1

    Start from a mono, band-limited master

    Sum to mono, high-pass around 300Hz and low-pass around 5kHz, then apply gentle limiting. A 3D-printed groove cannot carry full-range stereo, so the master has to be prepared for the medium.

  2. 2

    Generate the groove geometry

    The waveform is converted into a lateral spiral cut: amplitude becomes horizontal groove displacement, time becomes the spiral path. Groove pitch, depth and land width must stay inside what your printer can resolve.

  3. 3

    Choose the material

    Resin (MSLA) resolves finer groove walls and gives cleaner playback. PLA on a well-tuned FDM printer works, but expect more surface noise. Avoid brittle or highly filled materials — the stylus applies point load to the groove wall.

  4. 4

    Print at a low layer height

    Layer height is the single biggest quality lever. Around 0.08mm on FDM is the practical floor for audible playback; resin printers can go finer. A typical disc takes roughly 4 hours at that setting.

  5. 5

    Post-process and play

    Clean and fully cure resin prints, deburr the groove entry, and let the disc flatten under light weight. Play at 45 or 33 RPM with a conical stylus and standard tracking force.

Materials

RESIN VS PLA

Resin (MSLA)

  • Finest groove walls and lowest surface noise
  • Best choice when playback clarity matters most
  • Needs full washing and curing before play
  • More brittle — handle the groove edge carefully

PLA (FDM)

  • Accessible, cheap, and forgiving to print
  • Audible layer noise unless tuned tightly
  • 0.08mm layer height is the practical floor
  • Tough enough for repeat plays and handling
3D model of a printable record disc with spiral groove geometryA 3D printer producing a playable record discMacro view of the printed groove walls on a 3D-printed record
What to expect

Frequency range

350Hz–4.9kHz

Print time

~4 hours

Playback speed

45 / 33 RPM

One more thing that has nothing to do with the printer: rights. Printing a recording you don't own is still copying it. Kräftsound handles this by binding every printable file to a licence token and an artist ID, so a print is authorised at the file level rather than by trust.

Skip the groove maths

Kräftsound turns a track into a print-ready 3MF disc file — groove geometry, printer profiles and licensing handled for you.

Join the waitlist