This unit teaches students about manipulators and accumulators that can be used on a VEX robot. These are mechanisms that help the robot interact with the environment. It will also introduce the concept of gear reduction as it applies to manipulators so that the students can design a robot arm that can hold up a certain weight at a given distance.
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This lesson will teach students about the different types of lifting mechanisms and accumulators. It will also explain how a gear reduction can be applied to increase the output torque of your motor.
In this lesson, students will learn how the provided motor specs for the 393 motor are limited by power draw. Students will then combine this knowledge to calculate the appropriate gear reduction necessary to lift an arm given motor limitations.
Students will apply the concepts learned in the previous two lessons to create a robot with an arm that can lift a heavy object.
Quiz on the unit