[wwalker3]

It looks like a big linear motor like in the video is probably $1000 to $2000 dollars. Angle sensors are pretty cheap (just a few bucks). Then you'd need an A/D-D/A board to control it with ($500 to $1000).

[hartror]

And a smart PHD student, which are pretty cheap I hear ;)

[sdfghjkjhg]

Although the 'smart' ones are something of an endangered species

[mkramlich]

don't worry, one day some smart PhD student will create a robot that's smart enough to replace smart PhD students