Question A cam-operated drilling system is required to produce a though-hole on workpieces that move along a conveyor system. The cam operating sequence 1-2-3-4 is illustrated below: Workpiece Drilling machine Cam and follower system Stage 1 Drilling Stage 2 Dwell Stage 3 Retraction Stage 4 Change of workpiece Devise the cam-follower sequence by explicitly stating the four-stage configuration. Constant velocity motion is only allowed in Stage 3. Then, construct the follower displacement diagram and draw the cam profile, either manually or using CAD tool. Suggest an improvement to the cam-operated drilling system.