Tham khảo tài liệu 'mcgraw-hill build a remote controlled robot part 8', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Arms and Subsystems 73 FIGURE 5-6. Holes in the left arm for the drink dispenser. FIGURE 5-7. Bolt head clearance cutouts. 74 Chapter Five again with that on the frame bolt it in place using a 1-inch X 1 4-inch-diameter bolt nut and lockwasher set. Do the same with the mounting hole on the lower arm only stack three washers between the arm and the framework so the arm sits straight along the framework. You can access the head of the screw through the 3 8-inch holes drilled on the sides of the arm. Now you can replace the upper section of the arm being sure to align the small cutout section on the piece with the head of the bolt holding the elbow to the framework. Figure 5-8 shows how the arms are mounted to the framework. The last component that completes Questor s arms are his hands. The hands are simply two auto drink holders mounted to the end-caps on the front of Questor s arms. The top of the drink holder is removed and the rest is screwed to the end-cap with a 1 8-inch screw. Figure 5-9 shows a completed hand. After you have made the hands set them aside they will be attached to the robot s arms later during the robot s final assembly. You are now ready to build Questor s drink dispenser and install it in the robot s left hand. FIGURE 5-8. Arm mounting. Arms and Subsystems 75 FIGURE 5-9. Completed hand. DRINK DISPENSER Figure 5-10 shows the parts layout for Questor s drink dispenser. The dispenser s base on which all of the components are mounted consists of a 9 1 2- X 9 1 2-inch piece of 1 8-inch plywood. The unit when completed is mounted in Questor s upper framework hence the 9 1 2- X 9 1 2-inch base. As you can see by the previous figure many parts for the dispenser must be modified or fabricated before they are mounted the first of these is the 12-volt pump itself. The pump listed in parts list your pump could be different has two large input output spouts that have to be removed so that the remaining parts of the spout can accept the narrower tubing .
