I am trying to build a part that will be 3D printed and will be a charging dock for an apple watch. My issue is that I'm trying to create the part which will hold the watch itself, but I can't get solidworks to shell out only that part. I  have a SLDPRT file attached that shouws what solidworks is doing and I think it's pretty obvious what I want done. I don't want the base(with the hole through it) to be hollowed out. only the bit coming out of the base. How can I accomplish this?