Saturday, March 6, 2010

"Walking" Robot - Week 2 [Solid Works]

Making parts of our "Rabbit Robot" in Solid Works was not much of a challenge. We easily drew the parts using straight lines and "spline" method. Here are some picture of the parts in solid works.



The above are the body pieces where the motor will be placed. We will need two of the piece on the top picture which will tightly fit into the rectangular holes of the piece on the bottom picture, creating two walls around the motor.




The top picture is the linking piece between the back legs to the motor so that the back legs and the body take turns in motion. We also created two types of front legs. One is called "jumping leg (bottom left picture)" and the other is just a regular front leg (bottom right picture). Jumping legs will make the machine "hop" just like rabbits do. But, it is only to be used if the regular leg works.



The back legs of the rabbit, however, was a bit of challenge because we wanted the leg to balance in the air; we needed to find out their center of masses in order to do so. Thankfully, the Solid Works had a system that would find us the exact position of the center of mass in a piece only if we knew the density of the material. We measured the density to be approximately 0.05 lb/in³, and was able to get the hole in the right position.

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