This week I decided to move forward with the roller coaster ring design. I changed the size of the track and made it a solid shape. Then I remade the carts so they had more detail. I ended up having to backtrack on some of the details that were preventing structural stability, such as having a hollow place where the rider's feet would go.
I got a lot of positive feedback about my coaster design, and I chose to move forward with it because of that, and I found it was the most unique and not-so-ring-like of all my designs. I would like to choose steel for my ring because I think it looks the best with the coaster, but the plastic has a bit less yellow and red, so I am going to have to decide if I think my model can be printed in steel.
Here are the final renders for my model in steel:
Here is my model passing all the tests on Shapeways:
I love the clean and minimalist look of this deisgn!
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