A friend that has a CNC shop was showing me his new machine yesterday.
Here is a Youtube video of one in action making a brake disk.
The parts barely get warm.
http://www.youtube.com/watch?NR=1&fe...&v=RQIJSsbvolc
Another video of one working.
http://www.youtube.com/watch?v=cmOmZ...e=results_main
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