1) Artificer 2) Artisan 3) Craftsman 4) Journeyman 5) Mechanic 6) Shop mechanic 7) Shop teacher, usually 8) Toolmaker 1) Latheman 2) Worker 
A machinist is a person who uses machine tools to make or modify parts, primarily metal parts, a process known as machining. This is accomplished by using machine tools to cut away excess material much as a woodcarver cuts away excess wood to produce his work. In addition to metal, the parts may be made of many other kinds of materials, such as pl...
• (n.) A constrictor of machines and engines; one versed in the principles of machines. • (n.) A person employed to shift scenery in a theater. • (n.) One skilled in the use of machine tools.
Ma·chin'ist noun [ Confer French machiniste .] 1. A constrictor of machines and engines; one versed in the principles of machines. 2. One skilled in the use of machine tools. 3. A person employed to shift scenery in a theater. 
[n] - a craftsman skilled in operating machine tools
A person who is skilled in the operation of machine tools. He must be able to plan his own procedure and have knowledge of heat-treating principles.
mechanic noun a craftsman skilled in operating machine tools