High D Tinwhistle Version 1.2

# High D Tinwhistle (13mm bore, printed fipple mouthpiece + body)

A fully 3D-printed high D tinwhistle -- the classic bright, traditional

session-key whistle -- scaled down from the same parametric design as

the G Alto and Low D whistles in this family. Multi-piece where needed

to fit standard print beds at this smaller scale.

## What this is

- Bore: 13mm ID

- Mechanism: fipple/duct whistle -- internal windway shapes and

aims the air jet across a labium edge, same principle as a

traditional tinwhistle or recorder.

- Construction: multi-piece design (mouthpiece + body sections)

joined with tenon/socket fits. All pieces confirmed to fit a

standard bed (Creality K1) with plenty of margin at this size.

- Scaled down from the Low D reference design rather than designed

from scratch -- most acoustic dimensions (hole positions, windway,

labium geometry) scale directly with bore size; a few things

(certain wall-thickness minimums, a tone-hole cutting margin) were

deliberately kept fixed rather than scaled down, after scaling one of

them too far caused thin/sliver geometry at this smaller size.

## Status

-Tenon joint is no longer loose, so no need for tape on the joint.

-Plays well, expected volume and tone from whistle.

Version 1.1: Added a pentatonic scale body piece 2.

Version 1.2 Enlarged the wind way in the mouthpiece, 22% and enlarged

the note holes in both Piece 2 versions, 20%

## Notes for anyone printing this

- This is the smallest whistle in the family -- tenon/socket

tolerances that work fine at Low D or Alto G scale can behave

differently at this size under real printer shrinkage. If a joint

is too tight, the fix is to increase the socket clearance (make

the socket bigger relative to the tenon), not decrease it.

- Print orientation matters for the windway/labium region -- get this

wrong and you'll fight sagging or rough internal surfaces that kill

the voicing.  Pay attention to the mouthpiece in printing, recommend a vertical

or 45 degree angle print.

- Any tuning adjustments after printing (undercutting the labium,

opening tone holes slightly) are normal for a first print and don't

indicate a design fault.

## Files

- Ready-to-slice STLs

## License

CC BY-NC-SA -- attribution required, non-commercial use only,

derivatives must stay open under the same terms.

## Credits

Design, testing, and all the physical building/iteration by me.

OpenSCAD source developed with the help of Claude (Anthropic).

The "low tech" tinwhistle guide: https://www.guidogonzato.it/whistle/