Page 142 - Robot Design Handbook ROBOCON Malaysia 2019
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The design of Shagai throwing mechanism based on the catapult physics using Festo

               Pneumatic Servo  which  pre-set the rotation degree of angle for the  Shagai  to  have the
               consistence flipping rate and land on the ground with the same surface of the Shagai [1].





















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               Figure 3: Initial Position with θ1=30 0            Figure 4: End Position with θ2=90

               Gerege Passing Mechanism









                                        Figure 5: Shows the pneumatic gripper

                       Festo pneumatic gripper is used to hold the Gerege and release with the combination

               of roller limit switch. A roller limit switch is mounted on the bottom of the pneumatic

               gripper. When passing the Gerege to the MR2, the MR1 moves along the game field wall
               with the Gerege slides into the MR2’s Gerege holder and trigger the roller limit switch to

               give signal to the micro-controller to send a command and rapidly release the Gerege into
               the holder.


               2.0.2 The MR2 Mechanical Design

                       The diagram below (Figure 6) shows the overall design of the top mechanism of the
               autonomous robot.














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