Question About Setting Bandsaw Teeth

[LUV2MILL]

Ok so I spent all this time building a blade grinder, I sharpen two blades take them out to the saw to test  them and I'm really seriously relieved because they are cutting really well

Nice flat cuts, smooth finish-on Hickory that came from a decent wood lot-It's all good right.

So I lift off a board about halfway through cutting this log and about a third of the way along the cut it's all jagged and from there the blade rises about 1/8". So I'm studying the face of the cut and there it is metal :'(

So when I'm examining the blade It doesn't appear to have any broken teeth but some have to be really offset bad to be leaving such a ragged cut.

So now my question. I've looked at a lot of setters but I don't see how any of them are addressing teeth that are too far out, they are all just making sure the teeth are set enough. What do I do to address teeth that are over set?

[Andre]

There are some setting machines that also down-set.
Did quick search of the forum
https://forestryforum.com/board/index.php/topic,34476.msg497116.html#msg497116

https://forestryforum.com/board/index.php/topic,72809.msg1101951.html#msg1101951

Have to go, dad's B-day

[LUV2MILL]

Thanks Andre

[Ox]

I've hammered them flat, bent them back with a crescent wrench or vise grips or pushed them back with the setter itself.  I prefer the wrench.  Any of these work fine unless you end up with a blade that hit a backstop and ended up looking like a peeled banana.  Half of those teeth broke off when trying to straighten them.  I still saved it for garbage or questionable trees.

[kelLOGg]

To unset a few teeth I use an idea I got from a fellow FFer.
Bob



 

[Ga Mtn Man]

In previous threads on this subject pictures have been posted of a homemade hand-held device consisting of some rollers mounted to a piece of bar stock.  Perhaps someone can find and re-post the pic  ???.

[pineywoods]

The problem with setters that will "un-set" an overset tooth is they don't do the raker teeth, which normally have zero set. Sawing into metal will frequently bend some raker teeth as well as cutters. I make a habit (learned the hard way) of taking a hammer and anvil to the rakers of blades that are damaged before setting and sharpening..

[Chuck White]

Good point Piney!  ;)

If I notice a tooth that's way out of whack and severly damaged, it will become a raker too.   

[Ox]

 :D  Yeah, I have a couple blades that have missing teeth, more rakers than normal, even half teeth.  Good for garbage logs.  It always amazes me how ratty and beat up a blade can be but still produce a halfway decent cut.  One blade I have has about a foot and a half of no teeth at all.  It still cuts pretty good!

On these nasty blades I have to watch carefully when sharpening because the claw will come back and try to get another tooth and it'll either hang up or miss and the wheel will come down and in a blink of an eye I'll lose another tooth in a huge shower of sparks. :-\

[Ga Mtn Man]

Here's a link to a recent FF thread on down-setting a blade:

https://forestryforum.com/board/index.php/topic,79823.msg1212956.html#msg1212956