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 This Printable Self Assembling Lamp is an interesting concept. It starts out as a flat sheet and folds up into a box with an overhead light. The light turns on using a touch sensitive area. This is what Ikea needs to implement. 🙂
“The thing that comes out of the printer (it’s a rather special sort of printer) is a flat multi-layer sandwich of shape-memory polymers (they take care of the actual folding, triggered by heat), thin layers of copper, layers of paper and foam for structure, and double-sided tape to keep it all stuck together.”