Well I have started on my first major project, weather or not I finish is another thing, everything is going as well as can be expected and I would like to share the first stage of my tank, I am starting to think it may be a lil ambisious of myself as I havnt done anything like this before. And I am dreading the tracks! My first problem however is where I have circled in red, I have created a polly base and I want to cut out this type of shape, what is the best way doing this? any other c and c's are most welcome