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It's not hollow or enclosed structures that are a problem. It's structures that are hollow and enclosed. Think about it. The machine lays down a thin layer of powder, and then a laser fuses some of that powder together to make a shape. Then, it repeats the process for the next layer. If you try to build, for example, a hollow ball, the ball gets created in ...


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Whilst this is not a definitive answer, if you watch the video on their website, LENS 450 Systems, it is the bed that moves in the X and Y axes - the head remains static. The bed also appears to move in the Z axis, after each layer (as there is noticeable bed wobble). However, the head is on an armature so it could be that which moves - it is not entirely ...


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