Machine Shop Personnel Steve Patterson Manager, Journeyman Machinist Steve offers his experience in fabricating, welding, and precision machining as well as knowledge of Autocad and Gibbscam. Materials often used are aluminum, steel and stainless steel, and other exotic metals. Scott Spangler Senior Machinist Scott has been a machinist with Physics and Astronomy since 1985. Scott offers top skills in fabricating, welding, and precision machining.