Whats the difference between a solid, semi-hollow and hollow shape?
Hollow, semi-hollow and solid are the three general categories of extruded shapes. A shape is described as hollow if a completely enclosed void exists anywhere in its cross-section. In a semi-hollow shape, a void is only partially enclosed. (Your extruder can give you guidance, but by definition, for a shape to be semi-hollow, the area of the partially enclosed void must be substantially greater than the square of the gap’s width.) A solid shape is one which is neither hollow nor semi-hollow.
