Bill Tandler is the president and chief technical officer of Multi Metrics Inc. (Menlo Park, CA). For more information, call (650) 328-0200 or visit www.multimetrics.com.
What is GD&T? GD&T, namely “Geometric Dimensioning & Tolerancing,” is a symbolic language with which to 1) research, 2) refine and 3) ultimately “encode” the functions of each feature of a machine part by specifying permissible limits of imperfection.
