Thread: Translating circular motion to linear motion

I am looking for the best (minimum energy lost) and most reliable way to translate a circular motion to linear motion.

Is it possible to utilize hydraulics physics to achieve the translation? How?

You can do it with cams, like in a car engine.
http://en.wikipedia.org/wiki/Camshaft

http://en.wikipedia.org/wiki/File:Sc...er_display.jpg

There's also a hydraulic version.

How about this one.
http://en.wikipedia.org/wiki/File:Topazwheel.jpg