My technical wording is bad. But, let me put the picture as clear as possible.

My idea is that if we can make magentic flux or field lines in a desired shape, we can use those field lines to align magnetic particles to create a shape. Lets say a cube. The field lines are in the shape of a cube and in such an environment, if we release iron granular particles, they might get arranged in 3D. If this is possible, we can make a new way of 3D printing.

Let me know if this is possible.

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