Rerurn to Romy the Cat's Site

Too lazy to research it and, rather than mentally invent new technology, I keep thinking, "cutter heads", like the old, analog "lathes" that cut the metal masters.  This has to take some real force, perhaps analagous to a speaker coil, and I dimly recall that the cutter is not allowed to "fly off the handle" but it is somehow "controlled", coming and going, and according to signal strength, during the process.  I would not be surprised if someone reading here is prepared to illuminate this matter.  Or, someone who makes the rounds might put it to someone like Steve Hoffman and then get back, post a link, or...

Paul S

Rerurn to Romy the Cat's Site