A person who forges metals.
A person who creates forgeries, falsifies documents with intent to defraud, e.g. to create a false will or illicit copies of currency; counterfeiter.
One skilled in the use of machine tools for fashioning metal parts or tools out of metal.
A constructor of machines and engines; one versed in the principles of machines.
A person who operates machinery.
A person employed to shift scenery in a theater.