"J. Clarke" wrote in message
...
Dave Jackson wrote:

I wonder what kind of improvement this thing is over just using the trash
can with the plastic lid for the two stage, like this:
http://www.woodcraft.com/family.aspx...&FamilyID=4310

Probably a considerable improvement. A true cyclone gets just about
everything except the super-fines.

The vendor claimed that you could run a thickness planer with no bag... and
that little dust would make it to the filter bags for other uses. Claims
that sound similar to other cyclone vendor's claims!

As concerns the design. I looked at the inside of the unit and it doesn't
look fundamentally different than the inside of a Oneida cyclone. There is
an inlet coming into the side of the cylinder near the top and an outlet
tube exiting the top that extends down into the cylinder. The drop opening
has a flange that is supposed to be fastened to the trash can's top and
sealed with silicone (obviously a hole has to be cut in the top!).

John