“So basically, I tried to do it with the big motors, and it didn’t work — it didn’t fit — and so I tried to do it another way with the large motors, so then I had the idea of these two small motors, and I checked to see if I could put it anywhere else . . .
It goes in circles because it’s not even support on both sides.”
(student response to the minimalist robot challenge)
This buggy uses a medium motor to drive the front wheels, and a medium motor to steer the rear wheels. The rear-wheel steering concept did not work well in practice. It was easy to program the rear axle to turn and then return to where it had started, but the friction of the tires would prevent this from happening.
“It’s a house rotating around so you never get bored looking at the same view from the same window.” Will cables get twisted? “I can prevent that by making it rotate one way and then the other.”
Co-teacher who made this was inspired by power outage in Puerto Rico to bring a story about technological need to robotics classes. 4th grader said “I am turning the axle clockwise. The bucket goes all around and comes back to where it started, over and over. It moves the buckets to pick up and deliver water.”
Another student said, “I think it’s fun, it’s awesome, you learn more things about how things go in Amazon when they move around the box. it makes it easier to move things quicker and easier. it uses also technology. but still it’s easy to use, back and forth, and it goes where you want.”
“This is one of the towers in twister towers, a make believe game that we play.”