Skin thickness as opposed to perimeter thickness ?

Adding extra perimeters is basically a 2D function, works in parallel with top and bottom layers to fix the thickness of vertical or horizontal faces respectively. However, working in 3D with curved and angled faces, is there a way to specify a minimum skin thickness (ie amount of material measured perpendicularly to the face) ? I suppose automatic extra perimeters would help with this but that does seem to work in my implementation of 0.9.7

r/Andrew

I do not understand why we have to even think in perimeters and top/bottom layers. It is only relavant if we only printed objects with vertical and horizontal surfaces. What we want is a minimum shell / skin thickness that applied to the surface regardless of shape and angles.

Perimeters IS the number of "layers" perpendicular to the face. If you have 2 perimeters, the printer will go around the perimeter twice, one bead inside the other. I don't know about slic3r, but skeinforge has a skin plugin; I assume slic3r has something similar. This allows you to have multiple vertical perimeters (i.e. one on top of the other) within the same space as a normal layer. This makes it look from the outside that you sliced/printed at twice the resolution, but you don't have to wait twice as long for the print to complete.