Vacuum Opinion

[Aerojunkie]

You answered your own question, Becker pump. It's designed for vacuum. It's lower cfm, but with good cutting strategies you won't have a problem with parts moving.

Thanks JMCS, I was leaning that way. I guess I was getting hung up on the specs and thought the blackbox might work better in some way.

[knight_toolworks]

I have cut years with 200 cfms and at most 8" finally built a black box that is super quiet only 76 db's for around 700 total its to about 82 with all 4 motors running. l. but of course the motors won't last more than a year or so and maybe twice that with a brush change. I was going to buy a couple whole house vacs that would give the same spec's for 2000 but I had 8 hours f cutting so I redesigned my setup with a lot of baffles and got it nice and quiet.
http://www.talkshopbot.com/forum/sho...ack-box-design