LEGO style Triple-Tone Chord Whistle
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A compact, one-piece brick-style whistle with three voices, a studded top and no supports.
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Other Toys & Games
- Licencja
- Creative Commons — Attribution — Noncommercial
A little brick with three voices
A compact, one-piece whistle with a brick-style studded top and three separate resonant chambers. Blow through the shared mouthpiece to play all three voices together.
The design was developed through repeated printed prototypes and spectrogram measurements, alongside a larger Duplo-style chord whistle. This version includes a wider air supply and a short final windway section for the highest voice, designed to help it speak more easily.
Sound and playing
The whistle produces a bright, chord-like sound. In prototype measurements, the three voices approached a major-chord frequency ratio at a steady playing pressure. Pitch and balance change with breath pressure, so very soft blowing may not start all three voices together.
Start gently and increase your breath until all three voices settle. Printed dimensions and the finish inside the windways affect the response; exact musical pitch is not specified.
Features
Overall dimensions: 23.8 × 47.8 × 8.2 mm.
Three separate resonant chambers and one shared mouthpiece.
Brick-style studded top and an integrated attachment hole.
Single-piece print with no assembly or moving parts.
Designed to print without supports.
Recommended print settings
Orientation: as supplied, flat underside on the bed and studs facing up.
Nozzle: 0.4 mm.
Layer height: 0.20 mm.
Walls: 3 perimeters.
Top and bottom: 5 solid layers each.
Infill: 10% gyroid.
Supports: off, including inside the air passages.
Brim: normally unnecessary with good bed adhesion.
Seam: place away from the mouthpiece and whistle windows where possible.
Scale: 100% to preserve the windway and stud dimensions.
Material and finishing
PLA is the recommended starting point for clean small details. PETG can also be tried with a well-tuned profile, but inspect the windways for stringing or sagging. Use dry filament and a calibrated flow setting.
Keep the air passages and all three whistle windows clear. Carefully remove loose strings without rounding the sound-producing edges. Check the fit with your bricks before printing a batch; printer calibration and material can change the fit.
Included file
brick_chord_whistle_soft.stl — complete whistle, ready to slice.
Not affiliated with or endorsed by the LEGO Group.