These are great videos! I spent some time in smaller blowdowns last weekend. I used only a 23" Corona hand saw to practice "reading the bind". Really interesting. One aspen flew up to nearly vertical! All went well. I think I'll be out with a power saw in another week. Lots to think about. Thanks for helping me be safe.
Nice video guys. Just one question. What keeps the bar from kickback when you made the cut from top to bottom. Why did it not kickback when the upper tip was in the wood? I'm still learning so please forgive me being naive. Thanks.
This is something I've wondered about, seen, and used myself, so here's my hypothesis: Kickback occurs when chain cutter(s) engage material on the tip of the bar, creating force upwards, and in the case where there's nothing above the bar making it spring upwards with a large amount of force. In this case, the bar is locked into a kerf, so it's unable to spring unrestricted upwards. So long as only 1-2 cutters are momentarily engaging on the bar's tip, the bar is able to remove fiber safely with upward force restricted, and reverse force balanced by weight of saw and sawyer. "Boring" is a similar technique, which applies rotational twist to the powerhead, and stabilizes the bar in the kerf! I'm not sure if he was doing that here though. I know the comment is 7 years old, but thought it might help someone, and it's fun to think through an answer
These are great videos! I spent some time in smaller blowdowns last weekend. I used only a 23" Corona hand saw to practice "reading the bind". Really interesting. One aspen flew up to nearly vertical! All went well. I think I'll be out with a power saw in another week. Lots to think about. Thanks for helping me be safe.
i have been studying these too. WAY different cutting when the tree is on the ground. courtesy of sandy i have been busy
Nice video guys. Just one question. What keeps the bar from kickback when you made the cut from top to bottom. Why did it not kickback when the upper tip was in the wood? I'm still learning so please forgive me being naive. Thanks.
This is something I've wondered about, seen, and used myself, so here's my hypothesis: Kickback occurs when chain cutter(s) engage material on the tip of the bar, creating force upwards, and in the case where there's nothing above the bar making it spring upwards with a large amount of force.
In this case, the bar is locked into a kerf, so it's unable to spring unrestricted upwards. So long as only 1-2 cutters are momentarily engaging on the bar's tip, the bar is able to remove fiber safely with upward force restricted, and reverse force balanced by weight of saw and sawyer. "Boring" is a similar technique, which applies rotational twist to the powerhead, and stabilizes the bar in the kerf! I'm not sure if he was doing that here though.
I know the comment is 7 years old, but thought it might help someone, and it's fun to think through an answer