The Vexmen of Brandywine Robotics

Category Archives: Robot Design

Cool Starfish Robot

A friend forwarded this link to me. It is a Jellyfish-like robot made by some researchers at Harvard that moves around through pneumatics curling each arm. Apparently, it can fit in a space under 2cm! How many Vex robots can do that? (It’s kind of cheating since the tubes are sticking out the other end. They don’t show that part squuezing through.)

While it does not exactly look competition legal to use elastic polymers in Vex, can you imagine a gripper using this design? You could grasp pretty flexibly around your scoring object at will with more slop in your alignment. The pneumatics would move each of the starfish arms independently to get a good solid hold of the game…

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What’s Your Robot Drive Style?

Now that everyone’s started building, we have quite a few different designs going for drive styles on the robots.

This will take a few posts to describe everything, so today we’ll talk about two wheel drive versus four wheel drive on a regular square robot then go into tank and arcade style drives.

The motors turn the wheels which move the robot. Where you put those motors have some effects on the drive style of the robot. We’ll go over different wheel and motor configurations and how you can have the joysticks drive these robots in different ways. Once we go over the square robot designs, we’ll cover the holonomic and U shapes some teams have going on.

Four Wheel…

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