4. For the cam displacement below with maximum rise of 25 mm, design a disk cam with knife edge follower graphically. Assume that the cam rotates in clockwise direction. Let the minimum diameter of the prime circle be 60mm. There is an offset of 10 mm between the cam and follower axis. Show your construction clearly and label your diagram. (You must use ruler and compass for the graphical construction). [15 points] Cam Angle (degrees) 030 60 90 135 180 210 240 270 315 360 Displacement -5 0 15 20 20 20 20 15 5 -5 -5 -5 (mm) 5. For the cam displacement below with maximum rise of 25 mm, design a disk cam with roller follower graphically. Assume that the cam rotates in anti-clockwise direction. Let the minimum diameter of the prime circle be 60mm. There is an offset of 10 mm between the cam and follower axis. The diameter of the roller is 20 mm. Show your construction clearly Name: SBU Id: and label your diagram. (You must use ruler and compass for the graphical construction). [15 points] Cam Angle 0 30 60 90 1 135 180 210 240 270 315 360 (degrees) Displacement 0 5 20 20 25 25 25 20 15 5 0 0 (mm)