Windowsill Aeolian harp — 3D-printable model preview

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Windowsill Aeolian harp

Let the wind play an eerie chord on strings stretched over a sound box in an open window

The Aeolian harp was a Romantic-era wonder: a box of strings placed in a half-open sash window that the draught plays by itself. Wind passing over a string makes it vibrate in shimmering overtones, rising and falling with the gusts, a sound Coleridge wrote a poem about. String this sound box with fishing line over its two bridges, all tuned to one low note, and lay it across an open window. On a breezy day it sings a ghostly chord without anyone touching it.

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Size (Base A): 210 × 90 × 40 mm
Shape: Rectangular
Walls: 2.4 mm
Volume: 95.1 cm³
Est. weight (PLA): 118 g
Parts to print: 1
Category: Music & audio
Made by: Krypto
Built in: 58 steps

What’s in it

Rectangular, 210 × 90 × 40 mm, with 2.4 mm walls
2 dividers
7 holes in the floor and walls
One more base built on (Base B)
Base B: rectangular, 210 × 90 mm, 6 mm tall (stacked)

How to print it

Thread three to five fishing lines (0.3-0.8 mm) through the end holes, over the two bridges, and tie them off; tune them all to the same low note.

Prints as shown on its floor, no supports. Stacked parts are fused into one print.

Filament: at most about 118 g of PLA printed solid (roughly $2.36 at $20 per kg); normal infill uses less.

To get the files, open it in the generator and choose File › Download STL (one file per part) or Download 3MF (every part on one plate).

Questions

What size is the windowsill Aeolian harp model?

The windowsill Aeolian harp model measures 210 × 90 × 40 mm (width × depth × height). That is Base A; one more base is built on. You can change every size in the free SO3D.xyz generator before you download it.

Does it need supports?

No. Thread three to five fishing lines (0.3-0.8 mm) through the end holes, over the two bridges, and tie them off; tune them all to the same low note. Prints as shown on its floor, no supports. Stacked parts are fused into one print.

How much filament does it use?

At most about 118 g of PLA (95.1 cm³ printed solid), roughly $2.36 of filament at $20 per kg. Normal infill uses less.

Can I change it?

Yes. Open it in the SO3D.xyz generator (free, in your browser), change the size, walls, dividers, holes, text or anything else, then download it as STL or 3MF for your slicer.

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Make it fit your space

Change the size, walls, dividers, holes and labels of the windowsill Aeolian harp model in your browser, then download it for your printer. Free, no CAD needed.

Customize this model