Simplify3D User Forum

Is it possible to have a vase with one outer shell and one inner shell connected only by bottom layer and do it in vase/spiral mode? I tried it and it worked quite ok except for making a hole where it jumped from shell to shell. Is there a setting to advance this jumping round it all so not to have this or isn't it yet possible?

Nope. Spiral vase mode only supports a single shell. It wouldn't work if you had 2 shells.