I am trying to limit my exposure to airbourne dust since I have a basement shop. I now spend more time in the shop than I ever have. I have replaced my cheapo Delta dust collector with the Grizzly G0548 cannister collector. This is a huge step in the right direction, but I need a downdraft table. Since Im out of floor space, I want to build a downdraft box that I can hook to my collector and when I dont need it, move it out of the way. I am just going to sit it on the bench, so it just needs to be a simple box with a 4" DC connection. Has anybody built one and can show me some pics and give me some pointers? I realize its not a complicated project.