GD&T Specialists

170 East Main St., D-137

Hendersonville, TN 37075

(615) 924-3600


If your company doesn’t have time to wait for your staff to be trained, you can hire the world’s leading expert to design, dimension and tolerance your gages and fixtures for you And, as a side benefit, your incomplete and/or incorrect product drawings will be corrected and completed to expedite the process of properly designing gages and fixtures to inspect your parts.

Manufacturing offshore?

Learn to design gages to assure that your parts function

 . . . no matter where they are produced and, possibly, save $$millions in accepted non-functional or rejected functional parts.

No matter where in the world your company’s products are being manufactured, the most reliable way to assure that your parts will function and mate with other parts in your assemblies is with gages.

UNRELIABLE VERIFICATION OF FUNCTIONALITY:  Coordinate Measuring Machines take a sampling of points on the surface of part features and then run them through algorithms to smooth the data.  This smoothing program filters out the highest points that are most likely to hang up in assembly conditions.  Variables data collectors, such as CMM’s, are great for Statistical Process Control, but cannot be relied on for proof that parts will assemble or function.

FOOL-PROOF ASSEMBLABILITY VERIFICATION: GD&T Gages are three-dimensional representations of the mating parts, but less forgiving than the assembly in that they utilize all of the applicable tolerances to decide the sizes of the gauging elements.  If the part fits the GD&T gage, you can rest easy that the part will fit the assembly.  But that is only true if the GD&T gages (and the parts they represent) have been designed, dimensioned and toleranced correctly.


‘NEW’ GAGING STANDARD: James D. Meadows is the chairman and founder of the world’s only nationally and internationally recognized standard on the dimensioning and tolerancing of GD&T gages and fixtures. ASME Y14.43 training, which includes Dimensioning and Tolerancing Principles for GD&T Gages and Fixtures explains the extensive rules and principles and how to properly utilize them. This ASME Y14.43 training has only been in written form and available to the public through the ASME Y14.43 training standard since 2003. It was revised, updated and re-issued as Y14.43-2011. So, unless your GD&T gage and fixture designers have been trained since then per this standard (or tried to study it on their own), there is no way they could possibly be designing, dimensioning and tolerancing your gages 100% correctly. James D. Meadows, the world’s leading expert on GD&T gages and fixtures, can teach your employees the rules and principles needed with our ASME Y14.43 training.


The farther away your products are being manufactured, the less control you have, and the more important it is that any parts you ‘BUY’ pass a functional gage that replicates the worst possible mating conditions.  Only in this way can you be certain that anything you ‘buy’ will actually work.  Properly designed GD&T gages and fixtures can get this control back for you.  If the parts don’t fit the functional GD&T gages and fixtures, don’t buy them!   The bottom line is that incorrectly designed GD&T gages could accept non-functional parts or reject fully functional parts . . . costing your company $$ millions!

1997 - James D. Meadows & Assoc., ALL RIGHTS RESERVED

Site Designed & Maintained by VIRTUAL GOLDMINE