A Cris-Cross Contour-then-frame technique i developed for faster rapid prototyping using open source tools.
Faster Rapid Prototyping & 3D printing + Minimum material used.
* Wire frames thickness 1.5mm
* Contour resolution is determent by amount of X-Y slices - in this Skull example, only 35 slices were used.
* To make it a bit more stronger add slicing on the Z axis as well.