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Post by mohs on Mar 4, 2013 12:53:44 GMT -5
your exactly right James ! and I must admit looking back there were a few saws I munched uneven set or tooth structure UUUGGHH! mostly though I was in line  swagging a tooth was another way to achieve kerf |
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Post by bobby1 on Mar 4, 2013 14:42:58 GMT -5
Years ago my brother took me on a tour of a Weyerhauser (sp) saw mill in Klamath Falls, Oregon where he worked at the time. I got to see the saw blade shop where they sharpened the band saws. The blades were about 18" wide and they made a loop about 18' high. They had a grinder that ground notches between the teeth and a hand operated device that smashed the tips of the teeth to spread them so they cut a swage path through the logs. They could refurbish one in about an hour and could swap it out with a dull one in about 1 minute. They kept sharpening the blades until they were ground down to about a 8" width.
Quite an operation!
Bob
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Post by mohs on Mar 4, 2013 15:34:48 GMT -5
O yeah Bob
a saw mill is an incredible operation
Especially the person who drives the log train
through the re-saw.
Basically the log is on chain driven train
and a operator drives this train
through the band resaw, rip cutting the log.
Severing a plank, the driver then flips the log over
and rides the log back through the saw
to severe another plank.
He got complete control of how thick to cut the timber.
Once the driver of the train noticed that the
re-saw was scoring the cut planks.
He stopped the operation,
put a big red lock on the electrical box.
Then journeyman & I manually rolled that blade,
checking every tooth, using a side gauge,
looking for that misaligned tooth.
Found it, straitened it, and the all clear alarm was sounded.
Operation resumed and happy to report that the planks
were then cutting score free.
Tellya though... that is a scary things to do.
Rolling that 18' blade on the saw wheels.
Even if you know the electricity is killed !
Ed
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jamesp
Cave Dweller 
Member since October 2012
Posts: 36,611
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Post by jamesp on Mar 4, 2013 15:41:11 GMT -5
Amazing.
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Post by Pat on Mar 4, 2013 17:59:52 GMT -5
I will never look at a saw blade in the same way again. Thanks for the education.
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Post by mohs on Mar 4, 2013 23:20:34 GMT -5
A saw blade is wonder of human ingenuity
I’ve looked into the evolution of the saw
from the time of the Egyptians.
I do believe they were the first known group
to put some sort of set in a toothed blade
The modern circular saw revolutionized things.
Heck it was even featured in the movie E.T.
Remember the kid made some sort of rotating gizmo
with an umbrella? He used a Skill saw blade with a finger
(or pawl) to index the teeth that turned the umbrella?
Or something like that.
It was my past saw filing/grinding experience
that made me feel like rocks would be my thing.
grind on
Ed
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Post by Pat on Mar 5, 2013 13:57:02 GMT -5
I've always loved rocks, but it was clay sculpture that got me into stone carving and making wax models. Neat how one thing leads to another.
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Post by Pat on Nov 27, 2015 17:04:30 GMT -5
UPDATE: I gave it to stoner. It's been a while. He was happy! |
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,723 
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Post by Fossilman on Nov 27, 2015 17:25:39 GMT -5
My hand saw is a cross cut carpenters saw, it is still used a lot-I sharpen it myself (when needed)...
Still cuts great after all these years...
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Post by mohs on Nov 27, 2015 18:59:03 GMT -5
The Wood-Cutter
Once upon a time there was a very strong wood-cutter. He asked for a job from a timber merchant and he got it. The pay was very good and so were the work conditions and for that reason the wood-cutter was determined to do his very best. His boss gave him an axe and showed him the area in the forest where he was to work.
The first day the wood-cutter cut down 18 trees. His boss was extremely impressed and said, “Well done. Keep it up. You are our best wood-cutter yet.” Motivated by his boss’s words, the wood-cutter tried even harder the next day, but he only cut down 15 trees. The third day he tried even harder but only cut down 10 trees.
Day after day the woodcutter cut down fewer and fewer trees. His boss came to him and told him that if he did not chop down more trees each day he would lose his job. The wood-cutter needed the job, so he tried harder and harder. He worked during his lunch breaks and tea breaks, but still he could not cut down enough trees. “I must be losing my strength” the wood-cutter thought to himself. He worked over-time, but still it was not enough.
Eventually his boss came to him and told him he was fired. The wood-cutter was really upset, but he knew that he had worked as hard as he could and just did not have enough time to chop more trees. He sadly handed his axe back.
The boss took one look at the axe and asked, “When was the last time you sharpened your axe?”
“Sharpen my axe?” the wood-cutter replied. “I have never sharpened my axe. I have been too busy trying to cut down enough trees.”
Moral of the story:
Don’t get so busy that you don’t take time to sharpen your axe.
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Post by mohs on Nov 27, 2015 19:00:10 GMT -5
I really enjoyed saw blade manufacturing.  The blade displayed is what I used to help make. Each one of those carbide tips (that 18” blade 100 tooth TCB) I brazed on & then ground the top, sides, face for proper kerf to the body of the blade. Back in the day that was all done manually. Then the company got a CNC automatic machine. Let the good times roll! If any of the woodworker on here what to buy the best blade in the business I highly recommend Cherokee Saw & Tool www.cherokeesawtool.com/Saw.html |
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