Perhaps someone can clarify this...
How does the MetalicaRap produce hollow parts?
My understanding is that any hollow parts would be produced filled with metal powder. That metal powder would then have to be removed through some sort of hole when the printing is complete.
This would prevent the construction of, for example, a completely hollow sealed sphere. However, any internal geometry is possible, so long as the powder can escape after printing right?
In any case, it seems probable that any hollow cavity would require some sort of opening, to prevent the part imploding when removed from the vacuum if nothing else.
Is my understanding correct?
