Wiktionary(1.50 / 4 votes)Rate this definition: 1  dilemma(Noun) A circumstance in which a choice must be made between two or more alternatives that seem equally undesirable. 2  dilemma(Noun) (disputed) A difficult circumstance or problem.
The lathe is an ancient tool, dating at least to ancient Egypt and known to be used in Assyria and ancient Greece. The lathe was very important to the Industrial Revolution. It is known as the mother of machine tools, as it was the first machine tool that lead to the invention of other machine tools.
Thejaws are adjusted to the diameter of the workpiece and thenlocked in place.A lathe faceplate, Figure 7-23, is a flat, round plate thatthreads to the headstock spindle of the lathe. The faceplate isused for irregularly shaped workplaces that cannot besuccessfully held by chucks or mounted between centers.