Hi guys. I am in need of some help with cura. When I wanted to print this faucet, the base is like a donut shaped and the middle is meant to be hollow. However, when I sliced it, the whole this becomes a solid. I tried poking the filled part but I think it is a solid and cannot be removed. This is not supports as I did not Rick the supports button. Pls help as soon as possible I want to continue printing well. Thanks for your help.