Tham khảo tài liệu 'lego mindstorms - robotics invention system-2 projects part 14', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Robot 10 RIS Turtle Turtle Step 16 Add another layer of beams and a sensor. This touch sensor will be used to detect the position of the gear shifter. 311 Robot 10 RIS Turtle Turtle Step 17 This next sequence of steps shows how the gear shifter is assembled. Follow them very carefully Add two pulleys to drive the shifter. 312 Robot 10 RIS Turtle Turtle Step 19 Add two blue belts. Turtle Step 20 Place one cam on the pulleys. Note that the axle must be flush with the. The second cam added in the next step cannot have the axle through its center or the axle used for the crank will not fit. Turtle Step 21 Place the next cam on the pulleys. Note that the orientation of these cams is very important The points must be facing opposite directions .
