DIY Mechanical Computer : Harmonic Analyzer
This machine is based on the device presented by engineerguy : • (1/4) Intro/History: Introducing a 100-yea...
This machine helps you to draw signals from basic sine waves ( sin(x) to sin(5x) ), using Fourier series principle, though infinite sine waves would have to be generated for such a perfect machine.
If you want to make your own :
The lasercut plans are available on Thingiverse : https://www.thingiverse.com/thing:391...
The assembly instructions are on Instructables : https://www.instructables.com/id/Harm...