This might apply to molds but here is my problem. If I wantto support a complex part in an area that has many differentsurfaces how can I do this. If I sketch a area under the surfaceand try to extrude up to it I can't pick the body and if I pick asurface I can only get one. I would like to extrude to surface andbe able to pick more than one surface. Another option might be if Icould do a subtract from one to the other but I'm not sure how ifpossible to do this.
SolidworksParts And Features