Please tell me which are made of crosspieces, the central part of the cubes? What material and how to do it? These parts are different from all the color and material, and we see that they are not made by casting in molds, but as something different. Thank you!

I think it depends on the type of cube, but they can be made from ABS (the same plastic as the outer pieces). But sometimes they are also made from nylon, the same material that Shapeways uses for WSF.

The central cross-shelf industry cubes is different in color from the other parts of the same cube. Central cross yellow, and you can see that it is made not by injection molding, but rather cut from any is material. But no on an industrial scale details will not be cut. It is very interesting to know the technology of producing the part. This is not about 3D printers, namely the serially produced cubes.

I was not suggesting that the core was made by 3D printing, just that it may be made from nylon. I think that nylon has better mechanical properties than ABS for the core.

Thank you, Gus