Hi All,
Seeing Snowy and Pedr's posts forces me to finally stop and mention Bill Pentz's hard working efforts to help guys like us save our lungs.
http://billpentz.com/woodworking/Cyclone/index.cfm
I'm pretty sure he has details on how to build your own cyclone as big as you need and with the blower on the top so only 'fines' travel thru the blower.
I haven't tried building one yet
but its on my list of things to do before I need it so I won't
die early.
If you use his info then he sounds like a bloke worthy of a donation.
And I'm not related to the chap in any way.
Regards
Alex