Production / Manufacturing Engineer Having had an understanding of GDand T, I thought that Mark's presentation was excellent as I didn't realize how little I knew. His enthusiasm kept not only myself but the entire group engaged during the training, and fostered many after class conversations. His knowledge of the subject was well reflected in his ability to relate real world application of the daily subject, obviously there was much consideration given to his wide selection of practical 3D examples. I look forward to taking an advanced training session. - Harry Marks