I am interested on building a Downdraft Sanding Cabinet utilizing a Squirrel Cage Blower assembly and filtration. I would like to make the cabinet mobile, so I can easily roll it out of the way when it is not in use. I thought this would also be a good way to filter the shop air of the fine dust that I produce, mostly when sanding on the lathe. One of my 'bestest" SMC Buddies has generously offered a swap of a Squirrel Cage Blower unit for some things I have, and I think this will be a nice addition to my shop. I know I saw plans somewhere for a unit like this, but I cannot for the life of me remember where. Does anyone know of plans available? Or, better yet, has anyone built a unit like this, and if so, what are the things that work great for you, or what would you do different if you were building one today? Any information, such as hole size for the top, baffles, and the like would be greatly appreciated. Thanks in advance for any and all ideas, advice or suggestions!