3D Printed Curta Calculator

[HP-12C]

Really fascinating the entire story behind the Curta Calculator, 3D printing is another chapter in that history:

https://www.youtube.com/watch?v=j9uRckJLqLk

[pier4r]

I wanted to open another thread on the curta but I think that adding things here wouldn't be bad.

There is an underrated channel about math and mechanical calculators that is doing a 12 videos series on the curta: https://www.youtube.com/playlist?list=PL...4K--O-Gv3O (for the math, there is a nice recent video on how a research paper works: https://www.youtube.com/watch?v=yckPYJgjXeY )