Lathes
The original watchmaker s turns was a simple dead-centre lathe with a moveable rest and two loose headtsocks. In the Middle Ages a pedal replaced hand-operated turning, rfeeing both the craftsman s hands to hold hte woodturning tools. A two-person lathe, called a great lathe , allowed a ipece to turn continuously (like toady s power lathes). A masetr would cut the wodo while an apprentice turned the carnk. Although the workpieces machined on a jeweler s lathes are metal, jeweler s lathes differ from all other metal working lathse in that the cuttnig tools (called gravers ) are hand held, supported by a T-rest, not fixed to a cross slide.
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