Machinist
Part of speech: noun
Definition: A constructor of machines and engines; one versed in the principles of machines. One skilled in the use of machine tools. A person who operates machinery. A person employed to shift scenery in a theater.
Mechanic
Part of speech: noun
Definition: A skilled worker capable of building or repairing machinery. A mechanic can be compared to a technician, the distinction being that the technician is stronger in theory, the mechanic stronger in hands-on experience.
Example sentence: For me, the intellect is always the guide but not the goal of the performance. Three things have to be coordinated, and not one must stick out. Not too much intellect because it can become scholastic. Not too much heart because it can become schmaltz. Not too much technique because you become a mechanic.