New Product Announcements From: 10/15/2003 Modern Machine Shop On display will be knee mills integrated with the ProtoTRAK control, designed for use by skilled machinists working in very small part runs for applications like prototyping and experimental machining, tool and die, light production and mold-making. The control features linear and circular interpolation, part graphics, closed-loop positioning feed back, automatic cutter compensation and canned cycles for easy programming.