crooked cutter

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ben14826

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So when the saw is cutting crooked how do you know which side is sharper? Say the saw is pulling to the left, like this ---> ). Which side of the chain is sharpest? Im not including burred bar edges, bent bars, etc, just the chain itself.
 
The side it cuts towards is blunt. If you remove material from under one side of an object it will pivot round.

The sharp side is obviously removing more material than the less sharp, so will descend faster.
 
So when the saw is cutting crooked how do you know which side is sharper? Say the saw is pulling to the left, like this ---> ). Which side of the chain is sharpest? Im not including burred bar edges, bent bars, etc, just the chain itself.

Just a sidenote, it could also be the angles that are different on each side (happens quite often for unexperienced filers), or the length of the cutters (happens not-so-often).
 
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Also check that the bar hasn't worn unevenly...

If one rail on the bar has worn down more than the other the chain will sit (and cut) crooked. If the chain is sharp and even then the bar may need dressing.

Cheers

Ian
 
Hey thanx guys. I wasn't really posting because I have this problem, I was asking because it was something I was curious about after receiving conflicting reports, So I thought I would reassure my assumptions with you guys. A couple people told me that if it was cutting left that the left was dull and a couple said it was the right that was dull. When I sat there trying to think logically a couple ideas made it hard to get a good grasp on the answer. First I thought well if it pulls left the left must be sharp and it's "pulling" it that way. Secondly I thought well maybe if the right was sharpest it would eat faster and tend to bow the opposite way. I'm quite sure that it is as BigFeller says, that if the right side cutters are sharp, the saw will pull to the left, creating a kerf like this---> ). I know that a lot of other things cause crooked cuts like all of the rest of you explained and hopefully that can be helpful to others who have trouble with cutting crooked. Back when I sucked at filing and taking care of my bars, this info still wouldn't have helped much because I don't think I would have been able to remedy the problem anyways. LOL, try to remember back when you first started hand sharpening your saw chain. It's like anything else it takes a lot of practice to get good at it. Especially when you have to learn by trial and error. I was cutting all day today and couldn't help but smile when I notice that my chain is a semi chisel sharpened all the way down to the marks on the teeth and yet after a sharpening it will spit out curly ribbons of seasoned hard maple at a feverish pace. That's when you know that years of practice has paid off!
 

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