During his association with the University of Melbourne, Jack encountered Kenneth H. Hunt who had joined the university afterDr. Jack Raymond Phillips July 18, 1923–January 11, 2009 the war as a senior lecturer. Hunt was working on problems of mechanism and geometry of motion. They came to realize that they were working on similar problems of geometrically composing spatial force and velocity systems. Thus began a long and productive collaboration. It continued despite Jack's move to the University of Western Australia, and subsequently to the University of Sydney, and Ken's move to become the founding Dean of Engineering at the new Monash University. It was not always a smooth relationship. The two men were very different in their backgrounds, personalities, and interests outside the technical sphere. Jack's work and his students were always his primary focus, whether at the university or at home. Ken grew up in relatively privileged circumstances in England and had an M.A. from Oxford. He was an accomplished musician, and remained deeply involved in the musical community throughout his life. Like Jack, he had served in the army during the war. Ken Hunt became an accomplished administrator, and very much part of the establishment, whereas Jack's rebellious streak never left him, and probably contributed to his prickly relationship with the leadership of his department, and the university administration during the latter part of his career at the University of Sydney. Thus, it is not surprising that there was often friction between Jack and Ken. They did share a mutual respect for each other's work and a deep interest in similar technical problems.