Sphere Puzzle

by joachim67 Jan 31, 2015
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you need to put all the pieces into ONE file PLEASE

While the design is quite intriguing, I have found it impossible to assemble. I can put together rings or slices, but trying to get 4 pieces in a 2 x 2 pattern together I find the 4th piece unable to mesh with the others. I cant even get 2 pieces to fit in with the North or South Poles

Feels like one of those things that fits together but is not possible to assemble.

I think the problem lays partly in that the connecting lugs are tapered but that would throw the rest of the sphere out of whack...

Spoilerwarning - Don't read if you want to figure it out for yourself.
Yes, the pieces are tapered. But the trick is to always consider the tapering. For the last piece of a 2 x 2 pattern you'll have to twist it so that the lugs always come from the top into the corresponding recesses (is that the right word?). This also means that to build the complete ball the first piece is the one with recesses only and the last piece is the one with lugs only.

That said, if your pieces fit too tightly then you should increase the gap parameters (Either in the customizer or in the openscad file). Without gaps this is really impossible to assemble.