Sun Dome Solar

By · Thursday, September 4th, 2008

Sun Dome Solar
What should I use to form planets with concrete for my Eagle Project Model Solar System?

I am doing a project in Eagle, making a model Concrete solar system, and need to make hemispheres for planets, which are then put on the main disk of concrete for the model. I've been thinking in what used to form the planets: bowls, spoons, etc but I do not know of something that will work. The bowls have flat tops, and I need dome forms. The planet smaller would be about 1.5 centimeters in diameter, 0.75 inches tall, and bigger, the sun would be 12 inches in diameter and 6 inches high. Once again, I can not imagine what to use as molds for the hemispheres of the planets and the Sun Thanks! (A hemisphere is half of a sphere – a short ball in half – for anyone who does not know)

Use the balls instead of bowls. Their average smaller sphere can be freely and mostly more than baseballs, bowling balls of basketball. You can freeze your ball buried halfway into a bucket of sand. Cut out a circle of diameter of the ball of tar paper (Asphalt) placed this template on the ball to form their hemisphere / mold hump. Established with a layer of concrete, following the instructions on the link below for hollow spheres. You may just want to put the eggs in a plastic bag to protect the surface of the ball for easy removal.

Sun-Dome Passive Solar Daylight Harvesting

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