When I use a zero-clearance insert on my table saw, I lose almost all dust collection capability — the sawdust doesn’t make it throught the slot; it all comes straight back at me. I’m wondering if you can recommend a modification to my Delta Uniguard, or an alternative approach. Thanks!
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Replies
What brand, though I suppose it is a Delta, and model of saw do you have, and what type of dust collection are you using?
John White
John WW,
Thanks for your interest. My saw is a Delta 10" tilting arbor table saw, model 36-755. It has been referred to as a cabinet saw -- I think of it as basically a contractor model saw on what looks like a Unisaw base (it's no Unisaw, but it's OK). I've equipped it with a Delta Unifence and Uniguard. My dust collection system is a 4" connection to a Grizzly 2 hp machine. It does a pretty good job as long as I don't use a zero-clearance insert.
I'll appreciate hearing from you.
Best regards,
Steve Bowes
Steve,
In theory, any sawdust generated by the blade as it is cutting the board should be swept downward into the cabinet by the motion of the leading edge of the blade. This should happen with either a regular insert or a zero clearance insert.
If you are getting a lot of sawdust thrown into the air, it may be because the trailing edge of the saw blade is dragging against the sides of the kerf and taking off additional wood and throwing it upward as the rear teeth exit the top surface of the stock. The fix for this is to align the rip fence and the miter slot to be exactly parallel to the blade so that the rising blade at the rear of the cut is centered and doesn't rub against the side of the kerf.
There are several after market blade guards that have dust collection built into the clear plastic blade covers. Penn State, Excalibur, Biesemeyer, and HTC all make guards that have built in dust pick up. If you do a Google search for the brand name of each followed by the words "table saw guard" you will find sites selling them, often times with user reviews. If you have trouble tracking any of them down, let me know and I'll see if I can get you more information.
John
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