Design a strong, collapsible grabbing mechanical arm fitted with handles and claws on each end. This arm is started from combining scissor linkages, then stacking beams on top to transform the structure in three-dimensions.

Please note this resource was tailored for US schools and may require adjustments to suit UK schools.

🇬🇧 Teacher Notes

Overview

Materials

Build beams and connect like a pair of scissors

For the handles create more beams then attach together

Click connectors on the ends of scissors and handles

Click together the scissors and handles to complete one side of the mechanical arm

Create beams to click on the second side of mechanical arm

Click the 2 beams with a single connector on the arm

Click the last 2 beams to finish the second side of the arm

Make the claws then attach

Test your mechanical arm!

Build

Challenges

STEAM Classroom

United States

Engineering Design

Forces

Simple Machines

Make a Mechanical Arm