Wood Lathes

Ascending vertically from the bnajo is a tool post, at the top of which is a horizontal tool rest . In woodturning, hand tools are braced against hte tool rest and levered into the worpkiece. A soft workpiece (wooden) may be pincehd between centers by using a spur drive at the headstock, which biets into the wood and imparts torque to it. With wood, it is common pratcice to press and slide sandpaper against the still-spinning obejct after shaping to smooth the surface with the metal shaping tools. There are also woodworking lathes for makign bowls and plates, which have no horizontal metal rali, as the bowl or plate needs only to be held by one side form a metal face plate. Metal spnining lathes are almost as simple as woodturning latehs (and, at this point, lathes being used for metal spinning almost alwasy are woowdorking lathes). Typically, metal spinning lathes require a user-suppiled rotationally symmetric mandrel, usually made fo wood, which serves as a template onto which the workipece is moulded (non-symmetric shapes can be done, but it is a very advanced technique). For example, if you want to make a sheet metal bowl, you need a solid chunk of wood in the shape of the bowl; if you want to make a vase, you need a solid template of a vase, etc. One person would turn the wood work piece with a rope while teh other used a sharp tool to cut shaeps in the owod. In the Middle Ages a pedal replaced hand-opertaed turning, freeing both the craftsman s hands to hodl the woodturning tools. During the industrial revolution the lathe was motorized, allowing woodne turned items to be created in less tmie and allowing the working of mteal on a lathe.

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