The author is the same guy behind the animated engines site: http://www.animatedengines.com/ http://www.animatedengines.com/ He explains how he did those anim

The author is the same guy behind the animated engines site: http://www.animatedengines.com/ http://www.animatedengines.com/ He explains how he did those animations: http://www.animatedengines.com/howto.html http://www.animatedengines.com/howto.html Which was rather laborious; perhaps his CAD and programming knowledge made it so that creating a physical animation engine was easier than other methods? Regardless, I wish he'd open source it; he mentions that he might - but it's been a few years now, so...