Build a Card Grabber with Linkages
Learn how to make a grabber using card and linkages. Follow the step-by-step instructions to assemble the grabber and create a functional tool for gripping objects. Stay safe throughout the process with adult supervision and proper handling of materials. Explore additional images for reference and get inspired by a pupil project based on the Hungry Crocodile story.
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Presentation Transcript
How to make a grabber Learn about linkages and make a grabber out of card
Stay safe Whether you are a scientist researching a new medicine or an engineer solving climate change, safety always comes first. An adult must always be around and supervising when doing this activity. You are responsible for: ensuring that any equipment used for this activity is in good working condition behaving sensibly and following any safety instructions so as not to hurt or injure yourself or others Please note that in the absence of any negligence or other breach of duty by us, this activity is carried out at your own risk. It is important to take extra care at the stages marked with this symbol:
You Will Need: grippers Long linkage 2 handles 2 long linkages 2 grippers 7 metal joiners metal joiner handle
Assembling the Grabber Metal fastener Gripper 1) Cut the pieces out of card 2) Make the holes 3) Use the metal fasteners to connect the linkages
The Assembled Grabber Move the handles together and it will grow longer and grab with its end
Example of a Pupil Project Developing this Activity A grabber inspired by the Hungry Crocodile story.
Additional Images for Reference Single hole punch Fasteners
