7:37We Built a Precision 3D Printed Catapult with Bearings & SpringsMacshay Creations568 viewsView & Download
3:143D Printed Catapult — How It Works, Print Setup & Assembly GuideMacshay Creations1.3K viewsView & Download
4:50Pyramid Catapult - Easy and Powerful DIY STEM Project for KidsSTEM Inventions648.0K viewsView & Download