Robert McIvor, Principal Metallurgist at Metcom Technologies, Inc., and Consulting Metallurgist – Comminution, at Corem, has devoted his career to the design and optimization of grinding circuits. Robert learned slurry pump and mill application engineering (under Fred Bond) at Allis-Chalmers. Subsequently, working with hydrocyclones at Linatex, he discovered the “Functional Performance Equation” for ball milling circuits and went on to develop it through Ph.D. studies at McGill University. Using all these experiences, he partnered with milling operations to develop a training program with all the steps to measure and increase the efficiency of plant grinding circuits. This training, certified by The Engineering Institute of Canada and provided online in multiple languages, has been studied by over a thousand metallurgists worldwide. Robert was awarded the Art MacPherson Medal for “Significant Contributions to Comminution Technology” by CIMM, was co-recipient of the CEEC writing Medal for Operations Improvement, and named a Fellow of AIME.