I got a book on bandsaws, and actually read it. (That second part was critical... and not something I'm used to doing, even while I routinely do the first part.)
The book's recommendations on blades is lock step consistent with Steve and Bill's recommendations. The first project I'd like to do with my new to me bandsaw that I recently rebuilt is some resawing of 6" wide redwood. I bought a 1/2" wide 3 tpi blade for the 14" Delta I have. Cheap blade from Harbor Freight, something like $11. I'm going to try it this afternoon. If I come back tomorrow typing like this... ajfinv alsizyu ekm liuzv slk waols... then you'll know something went wrong, and maybe I should have sought a better blade from Iturra or someone like that.
I wanted an even wider blade, but the book talked about the dilemma between the need for more blade tension with wider blades, vs the ability of smaller saws to mechanically provide the required tension. Based on the marks on the blade tensioner screw casting, combined with the width of the tires on the 14" diameter wheels, it appeared to me that the maximum width of blade I could mount on the Delta would have been 3/4", which would have called for about 20,000 psi of tension. So by choosing one step below maximum, or 1/2", that can live with 15,000 psi of tension, I might be operating more within the limits of the machine. This is all freshman talk, coming from me, so keep that in mind.
With an 18" saw (cast iron frame? cast iron wheels? or steel frame? cast aluminum wheels?) I imagine that the Laguna could handle a 1" just fine, or even a 1 1/4" blade at the limit. For resawing, the book (as well as common sense) suggests that wider blades, with more tension, will wander less than skinny blades that can't handle as much tension as the wide blades. The book also suggests that ideally, around 6 teeth should be in the material at any given time. More than 6 teeth inside the material can clog, fewer than 6 teeth inside the material can catch. A 3 tpi blade will end up putting 8 teeth in the 2x6 I want to resaw, but I couldn't readily find a 2 tpi 1/2" blade, and I'd rather have a little bit smoother finish and saw slower.
While at Harbor Freight, I picked up the green colored AccuLink ling belt for the band saw. Niiice. I did some research on this belt. It is actually made in the EEC (European Economic Community), in Italy specifically, not China. It was formerly made in the USA by Jason Industrial, that is part of the Megadyne Group. Some production processes and material coatings were improved, according to the rep at Jason Industrial I called, when the belt production was moved to Italy. The ability to adjust the linkage in the AccuLink belt is reportedly much easier than the red colored Fenner Power Twist belts sold at Rockler, which require pliers to separate, whereas the Acculinks can be done by hand.
As it happened, and for the interest of any Delta 14" owners with a wood only version of one of the most common bandsaw designs sold in America, the Acculink belt fit perfectly on my bandsaw straight out of the box with zero link changes. (1725 rpm motor, open stand mounted below frame).
For curve work, obviously a skinnier blade with more teeth and smaller gullets is called for. My saw came with a 1/4" wide blade and too many teeth for me to count. I set it aside for future needs, and am looking forward to my first foray into resawing over the next day or two.