How Do You Build A Cardboard Geodesic Dome?
The geodesic dome uses two different-sized triangles. Painting the cardboard triangles with water-based paint and sealing all joints with duct tape makes your cardboard dome rain proof. This cardboard geodesic dome is about 15 feet across and can hold about 20 children. Cut the first triangle with each side equal to 1.545 meters. These are straight triangles with no connector flaps. This is triangle AAA. Use this triangle as the template and make 10 AAA triangles. Cut the second triangle as an isosceles triangle, with two sides being 1.365 meters and the third side as 1.545 meters. This is triangle ABB. Use this triangle as a template and make 30 ABB triangles. Score all ABB triangles with a 3-cm flap along each edge, which will be used to connect the triangles together. Bend the flaps outward, and each bend must be true, so practice on scrap before attempting this. Use four cardboard rivets at each joint. You will need at least 400 rivets. Place five ABB triangles on the floor in a pe