Formatting constraints prevent us from formatting this article in a way that might make it easier for the reader to understand. If you have problems understanding the web version of this article, ... [Read More]
We have been urged to interrupt our deliberations on GD&T encoding and decoding with a review of the many terms we’ve been bandying about. Try them on, play with them, share them, try to ... [Read More]
Encoding the mating flange:
In Workshop No. 7, we used Smart GD&T processes to encode the operation, assembly, and other functions of a flange. In this workshop, we take a deeper look ... [Read More]
T
he actual purpose of GD&T:
It’s common to think that the primary purpose of GD&T is to unambiguously communicate design intent to manufacturing and inspection. In ... [Read More]
What’s a datum reference frame?
As discussed in workshop No. 5, datum reference frames (DRF) are coordinate systems, and preferably—at least to start with—Cartesian coordinate systems. ... [Read More]
As we know, GD&T is a symbolic language with which to specify permissible limits of imperfection in manufactured parts, namely limits that maximize the parts’ operability, assemblability, and ... [Read More]
Back in the 1940, when Stanley Parker, Mr. GD&T, decided it was time to create a set of tolerancing tools that realistically dealt with reality, two objectives were near the top of his ... [Read More]
Our original plan for workshop No. 3 was to discuss what are generally referred to as material condition modifiers, namely the encircled letters “M,” “L,” and “S” which sometimes follow ... [Read More]
Continuing with our analysis of the Greatest Design Tool ever, our objective in this article is to take a detailed look at the structure and contents of feature control frames to demonstrate ... [Read More]
What is GD&T, anyway? The Greatest Design Tool ever, or a whole bunch of Gol-Derned Trouble? Actually, geometric dimensioning and tolerancing is both, and worth every penny.
Only with ... [Read More]
