Im here to help you, my friend. Yes. Im from Brazil. And my Spanish is horrible too. We speak Portuguese here. ;-) Its a tavern from an old friend. The "Gruta da On" (or "Jaguars Cavern")is the place where I drink my beer and eat the delicious "feijoada" every saturday. You must taste this, man! I use the site to keep my files. Well, boolean is very easy. First, I create a feather in vertex modeler.