Stan’s Obligatory Blog

Happy Thanksgiving

3/8/2016

ME72 2016

Filed under: — stan @ 6:29 pm

Today was the ME72 contest at Caltech. This is the engineering class where the students get a box of junk and have to use it to make one or more machines to compete in a contest. I’ve been going to see this for as long as long as I’ve been at the USGS office at Caltech, and it’s always great fun. This year’s contest was the Tridroid Cup, where each team was supposed to build three robots to compete as a team to score points by putting small soccer balls through goals at the far end of the playing field. The two floor-level goals were worth one point, and the single raised goal was worth three points.

All the teams get the same junk to start with, but they all come up with different approaches to the problem. Most of them had machines with sort of a scoop on the front to be able to push the balls through the floor-level goals. The Caltech Armored Division team’s machines were very fast and manouverable, and they were able to score lots of points by just pushing lots of balls through the goals. But then one of them got stuck trying to drive over the divider down the middle of the field, which was a limitation of their low-to-the floor design.

Today’s contest was special in that it was the first time in 20 years of coming to see these things that I saw one of the machines catch fire during a match. Their machine was just driving across the floor when a small circuit board on it just suddenly caught fire. They smothered the fire with a wadded-up T-shirt, and the match continued.

In the end, it came down to the Blitzkrieg Bots against TBD. The TBD team had machines that could pick up several balls at a time and fling them through the high goal. At three points for each ball, they won lots of matches by just parking their machine in front of the goal and shooting balls through it. But the Bots had a low-slung ball-pusher machine, and a tall machine that they used to block the balls being flung at the high goal, and in the end, that divided strategy worked, and they were the winners. And the whole thing was very entertaining to watch.

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