Noun

1. person who designs and builds surfboards.

   He apprenticed with several notable Southern California shapers before packing his bags for Hawaii — Tom Linker http://www.longboard.net/jl_sfriedman.html

1. A machine tool in which a single-point cutting tool mounted on a reciprocating ram is traversed across the workpiece linearly. Shapers can generate various shapes, but were most especially employed in generating flat surfaces and keyways. The shaper is nowadays obsolescent, most of its applications being served by milling machines.