Your blades should last for ever , if you're just cutting wood. I cut
aluminum & sometimes brass , & they last a long time.
Make sure the teeth are pointing down. And the guides are not too far
forward dulling your blades. Good luck.
Depends a *lot* on the wood you're cutting. Blades won't last long, if you cut
a lot of hard maple or purpleheart.
Doug Miller (alphageek-at-milmac-dot-com)
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When I first got my bandsaw, I was surprised at how short the life of
the blade is. I don't have a table saw, so the band saw is the main
saw in my shop, so it gets a lot of use.
Keep in mind that any of the following can ruin the blade instantly:
* Overheating the blade, especially when resawing. If you see or
smell smoke, then there is a good chance you toasted the blade.
* Having the blade come off the wheels and run against the guard.
* Using standard steel blocks (as opposed to cool blocks) and having
the teeth hit the blocks.
I would say heat is the #1 killer.
I switched to using bi-metal blades. They cost about 3x as much as
carbon steel blades, but are supposed to last 10x. I don't know
exactly how long they last because I haven't worn one out yet, but
they last a really, really long time compared to carbon steel blades.
You can get Lenox bi-metal blades from carbide.com.
Yes they can be sharpened, a previous poster does it the same way as I
do with a dremel and chain saw grindstone. I only do the blades that
have 6 teeth or less, finer blades are harder to grind and too many
teeth too sharpen. First I'm wondering why your blades are dulling
quickly. Have you tried a different manufactuer of bandsaw blades?
Other posts are informative as too why your blades may dull early. If
you are assured that your blade is installed correctly and the saw is
tuned up you may be using the wrong blade for the job. Sometimes I
have to change bandsaw blades several times a day to match the type of
sawing I do. If you are resawing or thick material you need to put a
blade on with few teeth, more width, skip tooth variety.I generally
resaw with a 3/4" 3 tooth blade. Your saw if I am not mistaken takes
up to 1/2" wide blades, maybe 3/4" but 1/2" is probably best on a 14"
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