Cover image
    Activity

    Build a Mechanical Claw

    Strawbees Team

    Make a three-finger claw to grasp objects by pulling a single straw. Each finger of this mechanical claw is a four-bar linkage. This allows the machine to be handled by pushing and pulling a straw through a connector to open and close the 3 fingers of the claw around objects.

    Engineering Design
    Forces
    Simple Machines
    8-14+
    25:00

    Overview and Objectives

    00:06

    Overview

    Make a three-finger claw to grasp objects by pulling a single straw. Each finger of this mechanical claw is a four-bar linkage. This allows the machine to be handled by pushing and pulling a straw through a connector to open and close the 3 fingers of the claw around objects.