Robatoy wrote:

So, I'm told that a cyclone is the way to go. What do we know about
those things?

About six years ago I daisy-chained two 55 gallon barrels with Lee
Valley clear separator tops to a HF dust collector. This setup is
dedicated to my ShopBot. I normally empty a barrel when it's somewhere
between 1/2 to 2/3 full.

The first barrel traps nearly all of the course/medium stuff and some of
the fine dust. The second has trapped everything not trapped by the
first barrel.

The bag on the dust collector has never needed emptying.

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/