Mechanical Technologist (Retired). Thirty years experience in engineering research, testing and design (fluids and ocean technology). Career involvement in 3Dprinting in the mid ninety's and early 2000's when it was known as rapid prototyping. Experience with FDM (Stratasys) and LOM (Helisys). Was enjoyable part of my early career; so much so I have taken it up as a hobby now.