I found that the solution was not at all effective. In fact the downdraft
table I built was loaded into the back of the pickup today while I was
giving the shop a major cleaning and will be left at the landfill the next
time I'm out in that direction. Far more effective for me has been a direct
connection from my DC to my 5" and 6" Bosch sanders, both of which have
perforated pads and fairly effective dust pickup. And in just the last few
days I've been able to trump that by connecting the brand new Fein Turbo III
vac with HEPA filter. The DC worked pretty well but drawing through the
required small hose was a real drag on its efficiency -- but the Fein seems
to suck several times more air through the same size hose. And it has the
advantage of being able to switch on and off with the sander, a trick my DC
never learned. I suspect that if one were to build a big dedicated sanding
table with a really powerful blower like the squirrel cage unit from a home
furnace and several layers of good filters and more open area than pegboard
can provide downdraft might be effective but the halfway solution just
didn't work for me.
My downdraft concoction: (sp) sits idle in the corner of the shop.
It is 24 x 48 with 1/4 inch holes every square inch - all
connected to a central DC via a 4 inch hose.
I get just as good results (if not better & with less set-up
effort) with my PC 333 ROS by simply sticking the
PC accessory hose into a nearby DC hose & open a blast
gate. Gets 95+% IMHO.
Sanded some oak doors today & was thinking how great this
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