On Wed, 25 Apr 2007 21:19:41 -0700, cc wrote:

A different question...new DC (yes, HF based on many reviews), new
hosing, cartridge filter on top, etc....

Not getting much suction, regardless of what point..does the
cartridge need to get some dust coating on it (like a felt bag)
before it really pulls? Am looking for someone who has experience
with this model personally, although opinions are always
welcome..thanks all..

If you read http://billpentz.com/woodworking/cyclone/Index.cfm, it
says no 14A/110 motor can produce 1200 CFM. Best case scenario is
around 600 CFM BEFORE any ducting. After 4" dia. hose and filters,
this will drop to 300 CFM at nozzle end. This matches Wynn
Environmental's test of the HF collector with their filters
(http://www.wynnenv.com/9e300bl_conversion.htm). Their measurement
after a bit of use is 330 CFM at 3800 FPM. (This is the benefit of a
cyclone separator, it keeps the filter from getting clogged.)

BTW, Bill's research recommends 800 CFM and 4000 FPM *AT THE TOOL* as
the bare minimum to be safe. Opinions here vary on how overboard this
is (from completely to not at all), but advertising a 15A/110 motor
dust collector at 1200 CFM ? Caveat emptor!

--
Steve Hall [ digitect dancingpaper com ]