I did some searching around and re-reading of Bill Pentz's design and I was wondering. If you took a 14-15" impeller and the blower box of his design and ran that straight down into a 6" version of the Thien baffle like someone just posted.
Couple that with maybe a 3HP motor (perhaps a little small) and output to a wynnenv Cartridge Filter we're moving some serious air.
I might have a cheaper source for a decent size Impeller for cheaper than the Jet. Grizzly's 14 1/2" impeller for their G0671 model can be shipped for $79, add 89 for the filter and a surplus motor and you have a serious dust collector for about the price of the HF 2HP when its not on sale.
Couple that with maybe a 3HP motor (perhaps a little small) and output to a wynnenv Cartridge Filter we're moving some serious air.
I might have a cheaper source for a decent size Impeller for cheaper than the Jet. Grizzly's 14 1/2" impeller for their G0671 model can be shipped for $79, add 89 for the filter and a surplus motor and you have a serious dust collector for about the price of the HF 2HP when its not on sale.