I am building a combo work bench/downdraft table. I have some questions. I am working off of the design that rockler sells as a kit. (20" x 40").
I was going to just use two 20" square house fans in a blowers stead. I have had some success with a ceiling air filter made with a house fan and some furnace filter. Please keep in mind, I am not looking to suck the hair off my body, just catch some of the dust.
1) The Rockler motor looks to have some cool impeller of some kind. Is this impeller something like what a vacuum has? Are they sold?
2) could a fan blowing from above, down onto the table help?
3) What is a good material for the surface? (I was going to drill out perfed melamine)
4) I have a 1.5 horse vacuum nearby, I can do better with some fans, can't I?