A while ago, I upgraded from the (much maligned here on the wreck)
BT-3000 to a Unisaw. In most aspects, I'm happy with the new saw but
dust collection is a disaster. With the BT-3000, a shopvac stuck on
the back caught 99% of the dust.
I've got a 650 CFM dust collector connected to the collection port on
the back of the Unisaw, which does almost no good. Looking at the
cabinet of the saw, it's easy to see why; there's so many huge holes
in the cabinet for air leaks.
I've taken off the factory guard, so I can seal up the annular slot in
the back where the guard mounting bar used to stick out of. Various
other small bolt holes will be easy to seal up too. The big problem
is the annular slot in the front where the blade elevating shaft comes
out. I can't seal that without disabling the blade tilt mechanism.
I'm willing to invest in a better dust collector (I'm leaning towards
the 2 HP woodsucker cyclone, http://www.woodsucker.com /), but I
suspect there's not much point if I can't figure out how to
significantly improve the airflow in the cabinet. How have other
people dealt with this problem?