A3 PDF plans... work in progress, yet!
Have fun!
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Created: 05-12-2014 [12:18]
Last updated: 24-03-2026 [22:45]
For attribution, please cite this page as:
Charters, T., "Tractrix paper horn for your cellphone": https://nexp.pt/tractrixpaperhorn.html (24-03-2026 [22:45])
(cc-by-sa) Tiago Charters - tiagocharters@nexp.pt
