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How to make a lathe for foam plastic balls

Hi my dear friends! These days I wanted to buy a few foam plastic balls in the shop for creativity to show you a few nice ideas of what can be made with such balls. I was very surprised by the price of one ball, because a medium ball of a fist size costs 3-4 dollars. I think that it’s too high price as for a small foam plastic ball. So let’s try to make a hand made ball of a bigger size.

In order to make a foam plastic ball we need stationary knife, emery paper, polypropylene pipe. The diameter of the ball will depend on the pipe’s diameter. The bigger its diameter is – the bigger ball we will get. Then, we need a borer with a cutting disk. It’s not a problem, if you have got no borer, it may be substituted with a hacksaw. Also, we need foam plastic, which you may take from old packages, as it’s often used as the sealer. For instance, you may buy a foam plastic sheet of any size and density in a tool store. If you have got a thin foam plastic sheet, you may stick together a few sheets with a hot-melt glue, like a sandwich.

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First, we have to cut a polypropylene pipe. I’m going to draw the contour with marker for you to see how I cut it. We need to cut out the upper part with borer. We don’t need a top part any more.

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Then, stick an emery paper in this semicircle.

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Well guys, a lathe for foam plastic balls is ready. Let’s try to make one ball. Put the lathe on foam plastic, draw the line around.

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Then, cut two circles with stationary knife. Stick these pieces together. Now we can start forming foam plastic. Polish foam plastic this way: move it to the left and to the right, turn it a bit, and do the same till this side becomes flawless.

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Then, turn foam plastic this way: to the left and to the right, turn it a bit, and do it again. That’s all, guys. Foam plastic ball is ready.

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It took approximately half an hour to make it. Thanks a lot for your attention. Bye-bye everyone.

Do you know?
The main compound of foam polystyrene is monomer styrene, which is present in many food products, including strawberry, nuts and green beans.

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