Journeyman Wood Butcher
Join Date: Feb 2008
Location: Central Illinois
Tburritt: welcome aboard...sounds like you may be able to make some decent contributions, yourself.
As for the D/C question, I agree with bigred on this one...beg, borrow or steal that Nagyszalanczy book. Read it, and you will have a fundamental understanding. I've been through my copy twice now.
I am in the process of constructing a 28x30 stand-alone shop on my property. I have decided to go with a 2hp Grizzly cyclone D/C. My plennum will all be PVC. Here is another can of worms that could be opened up...static electricity and fire cause and origin. As a professional fireman and having well-researched the topic of D/Cs, fires, etc...I will say that my system will be PVC. Others will raise their hackels at the notion, but that's OK. Sheet metal plennum is a sound choice, as well. The Nagyszalanczy book covers the topic, ad nauseum. Bottom line is you have to make your own choice based on the facts you discover. Let no one here or anywhere else make your decision for you.
One of the other good things about the book, and this forum (to a lesser degree) is that you'll get the basics, but you still have to do your own thinking. For instance, avoid 90's, T's and short radii elbows in designing your D/C system. Instead, use three 30's, use an in-line with 30, or use a large-radius 90 when needed...these factors reduce air flow turbulence and debris in the plennum flows easier. That's just one example, of which there are many in the book.
Good luck, and let us know how it goes. Pictures would be great, too....