Built this yesterday as a proto-type to collect the miserable dust I get covered with sanding a bowl. I was not sure if it would work well so I slapped it together from a heavy cardboard box and some scrap wood. 4 inch hose in the top back of the box. Holy cow it works way better than I had hoped for.
I have it kind of tight fitting to the bowl about 20 percent of the diameter of the bowl is within the box with a cut out in the box to clear the chuck . At this point it is working so well I am not even going to try to make something a little more substantial. The wood brackets are attached to the box with hot melt , box ix also reinforced with hot melt .
For what it is worth......
mike calabrese
dust collection.jpg