Keywords integrated: tolerance stack-up analysis, James D. Meadows, worst case analysis, statistical tolerance analysis, GD&T, RSS method, design for manufacturing, Six Sigma, process capability, assembly variation.
If you own only one reference on tolerance analysis, ensure it is the current edition of "Tolerance Stack-Up Analysis" by James D. Meadows. Your scrap rate will drop, your assembly line will run smoother, and your CFO will thank you. tolerance stack-up analysis by james d. meadows
Take a dimensioned drawing with true position callouts. Convert that position callout (Diameter at MMC) into a linear tolerance (Radius at RFS). Meadows’ book provides the $0.5 \times \textTolerance$ conversion rule. Keywords integrated: tolerance stack-up analysis, James D
Put the book aside. Take a simple assembly (a pen or a stapler). Manually calculate a 1D linear stack-up using Worst-Case and RSS. Compare the results. The variance will shock you. Meadows
Software tools are excellent for calculation speed, but they are terrible at strategy. Meadows teaches you what to ask the software . Most engineers blindly accept the software’s output without checking the input assumptions. Meadows trains your intuition.