Dust collection for table saws

It seems logical that dust collection on a cabinet type table saw would be better than a 3/4 cab or open back type.
Is it possible to collect at least halfway well without closing the back of a 3/4 type?
Dust collection is pretty newfangled to me. I've been sucking sawdust for 20 years.
Is there any good write up of the general topic of dust collection anywhere? I don't seem to see to much in catalogs and I'd like to get some sense of what I need to do prior to getting started.
Thanks guys.
RonT
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I have a Delta contractors saw, and the $159 on sale Horrible Frieght dust collector. I made a "hopper" that fits the bottem opening of the saw, connected to the collector and it does fairly well. An overhead guard/collector would help. Greg
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I have a 2 hp DC. I have a typical Jet contractors saw. I have a plastic insert in the bottom of the saw. The only dust that gets away is that that comes off above the table. I don't think additional enclosure of the "box" would avail me anything. A DC hose to some kind of blade guard might be worth the effort and it's on my list of "things to do".
bob g.
Ron Truitt wrote:

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I have made a wood pyramid, much like an inverted hip & ridge roof and hung it under the table saw blade. My saw is a direct drive unit and there is no belt to have an opening to worry about in the back, As the blade cuts and the saw dust falls from the underside of the saw, it falls into this inverted collector and the DC rushes it off to the separator can. Because the DC pulls air in from all the leaking spots in the table saw's box, it also pulls in air around the blade which includes the dust around the blade. Very little dust anywhere.
-- Woody
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In my book "Controlling Dust in the Workshop" by Rick Peters, he has a specific design for the blade guard on a table saw. I don't think I can post that picture on alt.binaries.pictures.woodworking but it *may* be alright for me to scan the picture and email to you. If you wish me to do that, please let me know via email.
Dick Snyder
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Go to www.billpentz.com, and click on his dust collecting pages. They are comprehensive, and you will learn everythign there is to learn about it.
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