Impossible Nail - Had you guessed how this impossible object was made?

More OskarPuzzle at https://www.youtube.com/OskarPuzzle?s.... Print it yourself at https://oskarvandeventer.nl/Print-It-.... Buy at https://i.materialise.com/en/shop/ite... or at https://www.shapeways.com/product/XHK.... Impossible Nail is a new view on a classic puzzle. The classic puzzle is a wooden puzzle that has a nail embedded in it. The question is: how did it get there. The combination of hot stream and a vise can explain the wooden version. Of course, the 3D-printed version has all parts just printed in place.

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