hello, i'm learning maya through lynda .com video's and in one off this video's you get to create a robot and when i get to the part where i want to create a mouth with the boolean tool, instead off inserting the mouth my revolve disappears and only the mouth remains :headbang: the mouth is a loft made out off two rectancular curves and the body where i want to create a mouth in is a revolve, then i place the mouth inside the body (it still sticks out off the body), deselect all, click onn the boolean tool,click the body,enter,click mouth,enter what am i doing wrong?