Cover image
    Activity

    Make an Umbrella

    Strawbees Team

    The springy nature of the plastic joints pop the umbrella open. Pull the middle of the internal structure to control the 5 stretchers. The stretchers connect to the friction joints that push the 5 ribs connected to the top. The 5 joints are flat enough for easy collapse of the umbrella to store for another rainy day.

    Engineering Design
    Forces
    8-14+
    25:00

    Overview and Objectives

    00:05

    Overview

    The springy nature of the plastic joints pop the umbrella open. Pull the middle of the internal structure to control the 5 stretchers. The stretchers connect to the friction joints that push the 5 ribs connected to the top. The 5 joints are flat enough for easy collapse of the umbrella to store for another rainy day.