Hey guys.. I'm already into the thought process of building a dual Tempest sub.. So, I thought since it'll be a while until I actually build it, I'd see if I could model it up in CAD.. I've figured out most of the basics.. Enough to suit my needs, anyway, except one thing.. I am trying to do the cutouts for driver mounting using the circle command, but rather than seeing it as a cutout of the main panel, it still sees it as being a solid object circle.. How do I tell cad that it's a cutout, rather than just a circle shaped piece of material? I'm using AutoCAD 2004, by the way.. I imagine the technique would be the same as in previous versions though..