1. A CNC drill press drills four 10.0 mm diameter holes at four locations on a flat aluminum plate in a production work cycle. Although the plate is only 12 mm thick, the drill must travel a full 20 mm vertically at each hole location to allow for clearance above the plate and breakthrough of the drill on the underside of the plate. Time to retract the drill from each hole is one-half the feeding time. Cutting speed = 0.5 m/sec and feed = 0.10 mm/rev. Coordinates of the hole locations are hole 1 at x = 25 mm, y = 25 mm; hole 2 at x = 25 mm, y = 150 mm; hole 3 at x = 150 mm, y = 150 mm; and hole 4 at x = 150 mm, y = 25 mm. The drill starts out at point (0,0) and returns to the same position after the work cycle is completed. The travel rate of the table in moving from one coordinate position to another is 600 mm/min. Owing to acceleration and deceleration and the time required for the control system to achieve final positioning, a time loss of 3 sec is experienced at each