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What do these blade marks mean?

Started by squarpeg, June 20, 2021, 05:27:26 PM

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squarpeg

June 20, 2021, 05:27:26 PM
I was sawing away and all of a sudden the cut looked like pic. What is cause?

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Chuck White

#1
June 20, 2021, 05:46:01 PM
It means that you have at least one tooth that is set to much!
~Chuck~  Cooks Cat Claw sharpener and single tooth setter.  2018 Chevy Silverado and 2021 Subaru Ascent.
With basic mechanical skills and the ability to read you can maintain a Woodmizer  LT40!

Crossroads

#2
June 20, 2021, 05:50:43 PM
Good chance you hit a rock in the bark and bent a tooth if it came on suddenly. 
With the right fulcrum and enough leverage, you can move the world!

2017 LT40 wide, BMS250 and BMT250,036 stihl, 2001 Dodge 3500 5.9 Cummins, l8000 Ford dump truck, hr16 Terex excavator, Valley je 2x24 edger, Gehl ctl65 skid steer, JD350c dozer

terrifictimbersllc

#3
June 20, 2021, 06:21:07 PM
Often you can go back to the place in your sawing where the cut changed from smooth to rough, and see the reason for it (nail for example). A pebble in the bark can do it too but that is harder to prove what it was. 

You need to post that picture by loading it into your FF photo gallery and putting a link to it from there. Otherwise if that link goes down or you remove that picture then this thread becomes meaningless. 
DJ Hoover, Terrific Timbers LLC,  Mystic CT Woodmizer Million Board Foot Club member. 2019 LT70 Super Wide 55 Yanmar,  LogRite fetching arch, WM BMS250 sharpener/BMT250 setter.  2001 F350 7.3L PSD 6 spd manual ZF 4x4 Crew Cab Long Bed

Jeff

#4
June 20, 2021, 07:16:58 PM
Like now. 
Just call me the midget doctor.
Forestry Forum Founder and Chief Cook and Bottle Washer.

Commercial circle sawmill sawyer in a past life for 25yrs.
Ezekiel 22:30

firefighter ontheside

#6
June 20, 2021, 09:43:53 PM
Definitely at least one tooth out of correct set.  Every time that tooth or teeth come around they leave that mark.  
Woodmizer LT15
Kubota Grand L4200
Stihl 025, MS261 and MS362
2017 F350 Diesel 4WD
Kawasaki Mule 4010
1998 Dodge 3500 Flatbed

btulloh

#7
June 20, 2021, 09:52:27 PM
Well good job getting the picture in your gallery. Can be a bit of a learning curve for some, but it pays off because the pictures will always be in the post. Not true on many forums. 

Chuck White pointed out the issue.  You may or may not find what you hit, but if look over the blade you'll find a tooth or two with the heavy set. There may be some other visible dame to the the tooth, but for sure it's going to be set way more than the others. Just part of the sawing experience. None of us are ever through learning. 
HM126

squarpeg

#8
June 20, 2021, 10:02:38 PM
Ok thank you guys. Now I know.

moodnacreek

#9
June 21, 2021, 08:02:27 AM
Bend out a few more to make drying sticks.

YellowHammer

#10
June 21, 2021, 08:39:12 AM
Yep, you hit something.  No big deal, it happens.  
YellowHammerisms:

Take steps to save steps.

If it won't roll, its not a log; it's still a tree.  Sawmills cut logs, not trees.

Kiln drying wood: When the cookies are burned, they're burned, and you can't fix them.

Sawing is fun for the first couple million boards.

Be smarter than the sawdust

backwoodsdave

#11
June 21, 2021, 10:52:42 AM
Some people pay extra for saw marks in their lumber, just had a buddy of mine cut some for a lady who wanted that very look, some extra set in a couple of teeth and your good to go.

moodnacreek

#12
June 21, 2021, 01:03:05 PM
The man I just got a sawmill from says historically correct up and down sawn beams can be reproduced with a small band by bending a few teeth out and raising one end of the cant.
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