Trx250r180
Saw polisher
Here is a round chain sample done on the usg grinder angles are 40-20-20 ,felt pretty sharp to the touch ,chunk of .404 ,i need to do a whole chain this way see how it does against the square .
Greenthorn attempts at hand filing square ground / Critics welcomed
- Thread starter Greenthorn
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Gypo Logger
Timber Baron
Here's some pics when I was a young grinder.
Trx250r180
Saw polisher
Why do you move the outer corner inward ?In the first pic ,last one looks kinda grabby for me .
Gypo Logger
Timber Baron
Are you meaning the stoning? It so, it keeps all cutters in perfect allignment. A stock chain has working corners of varying widths, meaning some cutters stick out farther than others.
Trx250r180
Saw polisher
Sounds like witchcraft to me .
Gypo Logger
Timber Baron
Voodooism
Beavers with ADD... Oh and dibs on the truck!
SierraWoodsman
ArboristSite Guru
Try this clip macro lens kit for your phone. It's cheap and should give you significantly better close-up pictures with the macro lens.
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Josh B.
I'd rather be in the woods than on this computer
Newb Question: what is gained by flat filing vs round filing? Ive always used round files and I'd like to hear the pro's n cons. 
bikemike
loud pipes save lives
Has anyoneever tried the square file on a semi chiz chain. If one of you square file guru's can do 1 cutter just for craps n giggles of if I'd like to se how bad they would look
Square file is 10-15% faster than full chisel, which is 10-15% faster than semi chisel. So square is 20-30% faster than semi chisel, it does make a difference.
The advantage of square file it that it matches the full chisel tooth profile. IMO, there would be no benefit to using a square file in a semi chisel chain.
You can find this info (and lots of other good info) on the Madsen's chainsaw website.
The advantage of square file it that it matches the full chisel tooth profile. IMO, there would be no benefit to using a square file in a semi chisel chain.
You can find this info (and lots of other good info) on the Madsen's chainsaw website.
bikemike
loud pipes save lives
I understand stand that I just wanted to se how ugly or crude a semi would look filed as a square file. I have never done square file work it has crossed my mind to try but I'd rather just hit it with the grinder
You have to get a file that is intended for square file, it is really a 6 sided file, the angles follow a full chisel tooth.
You can convert round to square, but they sell square (Stihl is RSL) The L stands for square (yea I know, it is a German thing).
I always start out with square, and try to maintain the factory angles. Works well in Hardwood, they use steeper angles for softwood & racing.
You can convert round to square, but they sell square (Stihl is RSL) The L stands for square (yea I know, it is a German thing).
I always start out with square, and try to maintain the factory angles. Works well in Hardwood, they use steeper angles for softwood & racing.
bikemike
loud pipes save lives
Do they have a wheel that can perform a square grind? If so how the they work or is it not worth the money
Warped5
WingNut
They do make wheels .... but they only work on a square grinder.
IIRC, the only one currently made is by Simington.
SierraWoodsman
ArboristSite Guru
I took these pictures a while back when I was trying to learn if it was possible to sharpen semi-chisel with my square grinder. The picture below is what you would get if you left the square grind profile on the wheel trying to sharpen semi-chisel.
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SierraWoodsman
ArboristSite Guru
If you radius the corner of the wheel you can do a decent job sharpening semi chisel using a square grinder and end up with a profile similar to this.
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Sent from my iPhone using Tapatalk
SierraWoodsman
ArboristSite Guru
I didn't try it on the saw with the first picture so I can't speak to performance as it was in the first picture. I did try it once I radiused the square corner off and can honestly say it was the fastest semi-chisel I had ever run. Probably mostly due to the fact that the chain was near "its end of life", they always cut like crazy when they're at this point.
Please forgive the derail.
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Please forgive the derail.
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bikemike
loud pipes save lives
Thanks that's what I wanted to se.I took these pictures a while back when I was trying to learn if it was possible to sharpen semi-chisel with my square grinder. The picture below is what you would get if you left the square grind profile on the wheel trying to sharpen semi-chisel.
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