I can't seem to thicken the boundary surface. I have knitted the two surfaces together and when I thicken it there is an opening where the two meet and it wont close. I have tried fill surface, offsetting it which failed, and re-doing the boundary surfaces. I'm running out of options. It must be this shape, and this size because it is the cover to another piece I am making. I cant sacrifice the geometry.
SolidworksParts And Features