I'm looking at the Timberline Sharpener to maintain my saw chain. Available sharpening angles are 25, 30 and 35 degrees. Does anyone have an answer, or opinion, as to what angle to grind and why? Thanks.
I never had good luck with the round chisel chains. The sharp didn't seem to last long and for some reason it's easy for me to get them out of balance. I've always had good maintenance life from the full chisel, even though as you say, most of my work is dirty work. The wood is normally okay, but I need to fell so close to the earth that there a guy really has to pay attention not to ding on a rock on the other side. And sometimes the trees grow around the rocks and you find one part way into the cut.use full chisel in clean wood, semi chisel in dirty and cruddy wood. Full chisel is 10% faster cutting, but the chisel points dull faster, especially in grit and dirty wood. Full chisel square filed results in the sharpest and fastest cutting chains, but that is for racing or where you want about a 10% faster cutting chain than round filed full chisel chain.
wkpoor might have some info as to how race chains are filed, that is if he's willing to share.
I use a square file for square chain but some use the goofy file. I had an Eric Copsey chain here for a few years and it was done with a square file. You can tell because the corner is nice and crisp. Here again not everyone does them exactly the same. I suspect no 2 race chains are alike. Only thing they share in common s the very small tooth.Real race chains are done with a goffy file....Not square ground. Not to metion the time it takes to do the ribets. (Proven race chain can cost you 1000's of dollar bills)
I use a square file for square chain but some use the goofy file. I had an Eric Copsey chain here for a few years and it was done with a square file. You can tell because the corner is nice and crisp. Here again not everyone does them exactly the same. I suspect no 2 race chains are alike. Only thing they share in common s the very small tooth.
I meant I had an Eric Copsey race chain, not work chain and it was square filed.Like I said a proven race chain is worth 1000's. Can be worth more than the saw its self. The rest is just a good work chain.
I'm looking at the Timberline Sharpener to maintain my saw chain. Available sharpening angles are 25, 30 and 35 degrees. Does anyone have an answer, or opinion, as to what angle to grind and why? Thanks.
I never had good luck with the round chisel chains. The sharp didn't seem to last long and for some reason it's easy for me to get them out of balance. I've always had good maintenance life from the full chisel, even though as you say, most of my work is dirty work. The wood is normally okay, but I need to fell so close to the earth that there a guy really has to pay attention not to ding on a rock on the other side. And sometimes the trees grow around the rocks and you find one part way into the cut.
And maybe that would change once I get a timberline sharpener, taking the difference between left and right handed sharpening out of the picture. But I think I'll keep with the full chisel. Try to solve one problem at a time
I never liked my Husky 346 until I went to full chisel. OEM was the round one.
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