Lab 7 Serene Han [shufengh] 1.3. The motion of the head is much smoother when the RawCam viewer is not on. 4.2. The gripper's height above the ground will not remain constant because of the segments of the arm are discrete and cause the motion to be jerky. 4.3. The trajectory still falls rather heavy, due to gravity, but it is also smoother and retracts itself back to the correct height.