Originally Posted by Spunky

A Millwright is a little more complex than a construction worker.
What is a Millwright?

Derived from the trade of carpentry, a millwright originally was a specialized carpenter who was trained as a carpenter and as well had working knowledge of gear ratios, driveshaft speeds, and other equations. The "mill" in millwright refers to the genesis of the trade in flour mills.

A millwright today is someone who maintains or constructs industrial machinery such as that which would be related to assembly lines, also pumps, valves, printing presses, etc. Millwrights are usually responsible for the unassembled equipment when it arrives at the job site. Using hoisting and moving equipment they position the pieces that need to be assembled. Their job requires a thorough knowledge of the load bearing capabilities of the equipment they use as well as an understanding of blueprints and technical instructions.