• 1-888-TEC-EASE
  • Outside USA: 1-716-785-6015

Your Source for GD&T Training and Materials

  • Ray Wheeler
  • Senior GD&T Professional
  • Technical Coach
  • E-mail Ray

Ray has over 30 years' experience in manufacturing, design engineering and training. He holds a MS degree in Engineering Technology with undergraduate degrees in both Mechanical Engineering Technology and Industrial Arts Education. He has worked in several different industries including aerospace, gas turbine engines / packages (aircraft and industrial), excimer laser systems and environmental controls. This diverse experience allows him to bring practical examples to the classroom. In addition to instruction, Ray has expertise in areas including product design, design for producibility, 3D model based definition and dimensional management. Ray is a certified Lean Practitioner, Senior Level Certified GD&T Professional and has a Six Sigma Black Belt Certification. His ASME affiliations are listed below. Couple all his experience with a great sense of humor and you have a class you won't forget.

ASME Affiliations:


  • "I've learned more in just a few hours with the Tec-Ease GD&T Hierarchy Coach than in 12 weeks taking a similar on-line program. I look forward to the time I get to spend viewing the presentations and taking the interactive quizzes. Here at FOX the Tec-Ease GD&T Hierarchy Coach is rated "best in class".
    - Marvin D.
  • "Thank you for all that you do. Your "Tips" are INVALUABLE -- I frequently refer to the archive for advice when I run across a sticky tolerancing puzzle."
    - Barbara P.
  • "I must say that I think you are the best GDT trainer/vendor of the many available. I have purchased your GDT charts, aids, and "The GDT Hierarchy" and found them to be clear and well illustrated."
    - Michael W.
  • "I absolutely love this course! (The GD&T Hierarchy Coach) I can go as slow as I want and go back and review slides if I need to. This is the way to go. I don't interrupt others learning, yet I get to fully understand before I move on."
    - Gwen M.
  • "Things are going well with our project. In less than a year we will be shipping a clinically significant, quality changing product to China from a US manufacturer. Cost competitive with great clinical outcome. I love the approach. I appreciate your help on this project. We have had a lot of feedback from our supply base saying great use of datum's and design for manufacturability."
    - Dave D.