"You're looking at the machine as a collection of geometric shapes," Sarah said, flipping to Chapter 3 on Fatigue. "Faires wants you to see the soul of the material."
“Design is the deliberate choice of dimensions and materials to create a machine that will perform a given function without failure.” – V.M. Faires design of machine elements faires pdf
They applied the "Faires method." They calculated the modifying factors: the surface finish factor, the size factor, the reliability factor. It was tedious, granular work. It wasn't the instant gratification of a 3D render. It was the blacksmith's work of forging the numbers by hand. "You're looking at the machine as a collection
They spent the next two hours with the PDF version open on a tablet next to the physical book. They navigated the complex tables for Soderberg lines and Gerber parabolas—graphs that looked like abstract art but represented the boundary between life and death for a rotating shaft. It was tedious, granular work