Algodoo

Sorry, but this doesn't work very well at all. For example, I carved some bumps and ridges on the top surface of that brown block. The device did follow some of the bumps, but it got stuck many times, and this device doesn't actually create a sine wave. It copies the outline of the bumps and ridges that the user makes. Unless the user makes a perfect sine wave, the resulting curved line will not be a sine wave. It will just be a printed line that follows the shape of the surface that the user carved.

Here is a link that describes what a sine wave is: Sine Wave

Thank you for telling me! When I posted the scene, I had no idea what a sine wave was, so I guess you could call it a tracer

I did kinda state it was a little glitchy and inaccurate, too