Paul Dosier Associates, Inc. (1967-2001) made the first CNC circuit board routers. PDA machines are of rugged industrial construction and many are still running every day.
They created the market and developed the design of all the components. Spindles, idlers, tool holders, brush housings,
vacuum manifolds, vacuum shutoff valves, lead screws, ball bushings, thrust bearings, servo motors, and servo amplifiers
were developed by PDA.