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Lego Mindstorms Robot

Lego Mindstorms Robot. [ DESIGN CHALLENGE ]. Tracey Zhang. LEGO MINDSTORMS STATMENT.

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Lego Mindstorms Robot

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  1. Lego Mindstorms Robot [DESIGNCHALLENGE] Tracey Zhang

  2. LEGO MINDSTORMS STATMENT The design challenge my group experimented with is the Lego Mindstorms robot. Our goal is to use this design challenge to further learn about the use of electricity, data sensors, and programming through building a robot that can gather and collect data from sensors. The Lego Mindstorms we created is the Alpha Rex, which has the ability to move its legs and arms and employs the use of the light and sound sensors.

  3. PROCEDURE Using the instruction manual given, our group constructed the Alpha Rex robot. • Begin constructing the right leg of the robot by attaching two black and two blue pieces to the gray holder shown in Figure 1. • Follow the directions to build the right leg until it looks like the picture shown in Figure 2. Figure 2 shows the completed right leg of the robot. Figure 1 shows the first step in order to begin building the Lego Mindstorms robot.

  4. PROCEDURE continued • Begin building the left leg following the given directions, which should be the same as the directions given for the right leg. The result should look like the picture shown in Figure 3. • Join the two legs together, following the instructions given and add the motors, allowing the legs to move. The final result should look like the Figure 4. Figure 3 shows the end result of the left leg. Figure 4 shows adding the left leg to the right leg, as well as the motors being added on.

  5. PROCEDURE continued • Begin building the body of the robot by joining a rod with a stopper, shown in Figure 5. • Following all instructions, the body, attached to the two completed legs should look like Figure 6. Figure 6 shows the body of the robot attached to the legs with all three motors currently in place. Figure 5 shows the first step in building the body of the Mindstorms robot.

  6. PROCEDURE continued • Add in the “head” of the robot if preferred to allow the robot to have the ultra-sonic sensor. Follow the instructions given. • Add in the two “arms” which also contain a sound and a touch sensor. Follow the instructions given. • On the backside, add the light sensor using the given instructions. • Finally, add in all the wires, making sure they are in the correct positions. Figure 7 shows the finished product.

  7. FIGURE 7 shows the finished robot with all sensors and wires attached.

  8. DIAGRAM-THE FRONT Ultra-sonic sensor NXT Body Touch sensor Sound sensor 35 cm wires

  9. DIAGRAM-THE BACK Ultra-sonic sensor Gears turning the head 35 cm wires Gears moving the arms Light sensor Sound sensor 20 cm wire 50 cm wires Gears moving the legs Motors

  10. BRIEF EXPLANATION(see word doc for a more detailed explanation) In this picture, the gears clearly show a transfer of energy. The kinetic energy derived from the motor is turning and being transferred to a gear, which in turn is being transferred to another gear, effectively moving the legs.

  11. Brief Explanation The two motors located on the leg in this picture illustrate the conversion of energy from electrical to kinetic as the motors begin moving, causing the legs to move.

  12. Brief Explanation The two sensors are used to gain measurements from the robot’s own environment and allow it to react accordingly. A difference in sound or touch in the cases of these two sensors, create a voltage difference. This difference is detected by the robot’s microchip and allows the robot to react.

  13. Pictures of You, Pictures of Me (: Emily and I working to have our robot to walk.

  14. My group programming the Alpha Rex with the program allowing it to react to music.

  15. In this picture, I am about to start the robot on its walking program.

  16. THE END!! (: LOOK AT THE OTHER WORD DOC FOR THE REFLECTION

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