Hover Craft Inspired Spin Top
by idea_beans, published
I had this idea of making a hover craft that could be propelled by balloons, but that idea didn't work because balloons weren't powerful enough to keep the propellers going. The whole thing ended up spinning on the table rather than hovering in the air, which led me to turn it into a spin top that would keep on going and going if you pump air towards either the propellers themselves, or into the opening duct in the centre of the thing. It'll speed up and keep spinning until you want it to stop!
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I've uploaded 3 different files here.
Spin top.stl - printing everything in one go. The propellers will have supports underneath, which will need to be removed and then re-attached to make them spin. The 5 caps are to be glued to the spigots to hold the propellers in place. The ball is to be glued to block the hole at the bottom of the object.
Spin top (body).stl - the main body only.
Spin top (propellers and bits only).stl - the propellers and small parts are separated from the main body so there's not as much supports required as in the whole set.