Learn the basics of CNC

Nice site that has some good lessons on CNC basics, you can download the windows game, or run thru the website on it (not as nice looking).  Oh and its free.

Worth trying out and showing kids.

http://hackaday.com/2013/12/05/learncnc-game/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29

http://learn-cnc-game.sourceforge.net/lesson_browser/index.html?lesson=0&page=1

http://learncnc.org/