One of my calculus students earned a perfect score on this week's exam! So I made a present to hand back with her test. I hope she likes the sine function.
The design is a remake of eduardoviruena's f(t)=sin t model on Thingiverse. I couldn't get that model to slice and print correctly, and the only part of it that would import into Tinkercad was the curve. So I remade the axes and also flattened the bottom and top of the curve.
STL file: http://www.geekhaus.com/makerhome/day53_sineremake.stl
Tinkercad link: https://tinkercad.com/things/coHU5yIqXyr-day-53-sine-remake
Thingiverse link: http://www.thingiverse.com/thing:168101
Settings: MakerWare "standard" in 6 minutes, on the glass.