Just in case there is some misunderstanding, it is blade lead - as in
to guide or direct in a course; not lead - as in a dense malleable
Blade lead refers to the direction that a particular blade wants to
track, depending on the saw's setup and the set of the teeth. Every
blade can differ.
For instance, when re-sawing, if the stock is not fed into the blade
at the angle that the blade wants it to be, it will not cut a straight
line, no matter how you force it. You only end up with score marks
and frustration. Feeding at what _appears_ to be parallel with the
blade is not enough. You have to check the lead of the blade and
compensate for its tendency to cut towards one direction or another.
When cutting curves, the same principles apply, only the pivot point
of the stock is altered to match the feed preference of the blade.
This really crude, exaggerated graphic might help:
If you're not being facetious, blade lead and guide blocks are pretty
basic bandsaw concepts. Before you do anything else with your bandsaw,
I'd strongly recommend that get a bandsaw book or 2 - I like "The
Bandsaw Handbook" by Duginske, though there are several other bandsaw
books out by Duginske and others. Check your local library or
(Amazon.com product link shortened)60974307/ref=pd_bbs_1/002-9120848-0525634?ie=UTF8&s=books
(that's http://tinyurl.com/yg9tfq if the link is too long)
Very informative, good background on bandsaws, how to set them up, tune
them to reduce vibration, what can be done with various types and
thickness of blades, etc.
Use your BS... make sure that you have a good quality, sharp blade and take your
time... You have more experience than I do, so you already know that, but what
the hell, it's a news group.. *g*
Do the best cut you can, then clamp the pieces together and sand them all at
once.. if the shape changes a bit, it will at least be a uniform design
improvement, not a screw-up, right?
In my experience, most marks from the BS are from too aggressive a set on the
blade, and not following the curve smoothly... every little wiggle of the stock
is going to leave marks..
Think about how we hold stuff on a TS compared to a BS... hard against the
fence, feather boards, etc... BS stuff is more ART than precision, I guess.. lol
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