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Author Topic: i cannot get a good edge on my chainsaw  (Read 1737 times)

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Offline startinghandle

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i cannot get a good edge on my chainsaw
« on: November 18, 2017, 07:27:05 PM »
it may sound silly but I cannot get a good edge on my chainsaw..  I get a good sharp tip but not a good cutting edge, the file is new and correct size as I took chain to the store to make sure of size and I have used 2 different guides and just a file on its own. I am occasional chainsaw user perhaps that is the problem  thanks in advance

Offline thecfarm

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Re: i cannot get a good edge on my chainsaw
« Reply #1 on: November 18, 2017, 08:54:05 PM »
Been sharpening long?  ;D
Plenty of youtubes to help you. Just have to figure out which ones knows and which ones think they know. ::)
I got upset with myself because I was having a hard time. I took a hard wood log and started sawing and sharpening. By the time I got done,there was not much left of the chain or the log. BUT I got it.  ;D  I can hand file a saw now,35 years later.
Mark the chain so you know where you started. A saw should draw itself into the wood. Not a good thing to do,but should be able to hold just the rear handle and the saw should draw itself into the wood. Do you put the bar into a vice? You want it at a good filing height.
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Offline pinefeller

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Re: i cannot get a good edge on my chainsaw
« Reply #2 on: November 18, 2017, 09:40:01 PM »
analyze a new chain and copy it. the side of the chain severs the fibers and the top peels them away. the bump before the tooth controls the depth of cut. put a straight edge on the top of the chain, the cutter should be roughly .030 above the bump (depth gauge)
for those who say "it cannot be done!" please do so quietly so as not to disturb those who are doing it.

Online HolmenTree

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Re: i cannot get a good edge on my chainsaw
« Reply #3 on: November 19, 2017, 12:03:42 AM »
it may sound silly but I cannot get a good edge on my chainsaw..  I get a good sharp tip but not a good cutting edge, the file is new and correct size as I took chain to the store to make sure of size and I have used 2 different guides and just a file on its own. I am occasional chainsaw user perhaps that is the problem  thanks in advance
Welcome to the Forum.
Sounds like you're holding your file handle too high while you're  making your filing strokes. With this error you'd get a inward concave cutting edge on the top plate.
Just hold the file level to the b/c.
Making a living with a saw since age 16.

Offline John Mc

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Re: i cannot get a good edge on my chainsaw
« Reply #4 on: November 19, 2017, 08:37:33 AM »
Close up pictures of a couple of your sharpened cutters from various angles would help us diagnose the issue.
If the only tool you have is a hammer, you tend to see every problem as a nail.   - Abraham Maslow

Offline kenskip1

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Re: i cannot get a good edge on my chainsaw
« Reply #5 on: November 20, 2017, 06:09:55 PM »
Can you tell if the chain is sharp just from looking at it?You bet your azimuth.A sharp chain will have almost a dull finish.A dull chain will have a shiny or reflect light.Why? Look at a file. A new one has a dull tone to it or will not reflect light, however a dull file will have the edges worn and will reflect light. Hope this helps, Ken
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Offline startinghandle

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Re: i cannot get a good edge on my chainsaw
« Reply #6 on: December 01, 2017, 03:10:43 PM »
I have tried to send photos but no success
but I have got a better edge and I did this by holding the chain  firm with one hand  and not applying so much pressure on the file

Offline Al_Smith

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Re: i cannot get a good edge on my chainsaw
« Reply #7 on: December 01, 2017, 03:55:43 PM »
Well yes if the chain is rocking it the bar slot it will throw you off .You should have the chain fairly tight to file .

Offline BobbyG

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Re: i cannot get a good edge on my chainsaw
« Reply #8 on: December 30, 2017, 06:56:16 AM »
it may sound silly but I cannot get a good edge on my chainsaw..  I get a good sharp tip but not a good cutting edge,

How do you know the tooth isn't sharp?

If you've sharpened it AND filed the rakers to achieve the proper chip depth you should be fine.

Offline Gearbox

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Re: i cannot get a good edge on my chainsaw
« Reply #9 on: December 30, 2017, 09:55:34 AM »
Do not drag the file on the back stroke . File on the teeth on the opposite side of the bar from where you stand.
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Offline Weekend_Sawyer

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Re: i cannot get a good edge on my chainsaw
« Reply #10 on: January 02, 2018, 10:54:44 AM »
Do not drag the file on the back stroke . File on the teeth on the opposite side of the bar from where you stand.

Before I learned how to sharpen correctly I used to do 2 things wrong.
I would file in twards the engine instead of away and I would file like I was using a handsaw.
Now I just give it 2 good strokes per tooth and move on.

Jon
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Offline customcutter01

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Re: i cannot get a good edge on my chainsaw
« Reply #11 on: January 02, 2018, 12:36:18 PM »
As was mentioned earlier, only sharpen when pushing the file away from the power head.  Do not drag the file back toward you on the tooth.  Also try to maintain the same angle with every stroke.  Most common mistake most people make when trying to sharpen a knife is "rocking" the blade, never having the same angle as they stroke the stone.  As mentioned earlier lots of you tube video's to help you.  You should be cutting long wood chips, not making sawdust with a sharp chain.

You may also find that if you are not cutting straight cuts that you are sharpening one side of the chain more than the other.  That's due to being right or left handed and favoring that side more than the other.
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