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This is a python script for use with FreeCAD, which is capable of generating various horn-like profiles, for experimenting in acoustics, or just for making a fancy funnel.
I tested a horn as a cellphone amplifier, with pretty decent results.
Put the script in your FreeCAD macro directory. Edit the call to Horn function at the bottom of the script to suit your needs. A mesh will be added to the freecad document, which can be exported to STL using the Mesh menu.
Parametric Acoustic Horns by thehans is licensed under the GNU - GPL license.
So what's this mean?
We're sure thehans would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!