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Exponential horn generator

12c7236044cf882fdeb26690776e3a38_display_large.JPG Exponential horn generator
horndemorect.stl Exponential horn generator
horndemorounded.stl Exponential horn generator
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Creation quality: 5.0/5 (1 vote)
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  • horndemorect.stl
  • horndemorounded.stl

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Publication date 2018-10-09 at 12:29
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Published to Thingiverse on: 2017-08-24 at 16:02
Design number 34138
arpruss

arpruss

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3D model description

This is an exponential horn library for OpenSCAD. I made it to amplify the sound from my son's watch alarm (fittings for that are here (https://www.thingiverse.com/thing:2500204)). You can use the library in your projects, or just generate horns with the demo Customizer here.

To generate a horn programmatically, do use <horn.scad>; and call horn(). You will also need my tubemesh (https://www.thingiverse.com/thing:2406760) library (it's bundled in the demo).

There are lots of optional arguments:

  • length=x: length of horn, from mouth to throat
  • throat=[w,h]: width and height of throat (narrow end)
  • mouth=[w,h]: width and height of mouth (wide end)
  • wallThickness=x: thickness of walls
  • numSections=n: number of strips to use (more is slower but better quality)
  • rectangular=b: set to false to do a round/elliptical horn (very slow); default: true
  • flangeLength=x: length of flange around mouth, for mounting mouth into something; set to 0 to omit flange
  • flangeFlare=x: how far the flange flares out

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