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Author Topic: Dry White Pine with waves  (Read 672 times)

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Offline Dave989

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Dry White Pine with waves
« on: April 15, 2017, 11:15:52 am »
Hello there,
I have a Woodmizer LT 40.  I was cutting white pine yesterday for a costumer with a new blade, bimetal 7 degree turbo.  The one White pine log that is about a year from when it was cut, kept getting waves in it where the knots were.  Now I have had this issue before, but never this bad.  I kept milling slower and slower, it didn't seem to make a difference. The costumer was not happy at all, nor was I.  Any ideas as to why this was happening? 
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Offline Kbeitz

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Re: Dry White Pine with waves
« Reply #1 on: April 15, 2017, 11:23:33 am »
Jack up the pressure a tad...
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Offline Sawmill Man

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Re: Dry White Pine with waves
« Reply #2 on: April 15, 2017, 12:12:24 pm »
If you are sure blade is sharp and tensioned correctly and drive belt is tight try increasing set.
"I could have sworn I went over that one with the metal detector".

Offline WV Sawmiller

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Re: Dry White Pine with waves
« Reply #3 on: April 15, 2017, 12:43:50 pm »
Dave,

   I'd try a 4 degree blade. I run them a lot in pine and spruce to prevent getting wave at the knots. The 7 & 10 degree blades will cut good in the soft wood till they hit the harder knot then they want to jump over (at least that has been my experience with my mill). Good luck.
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Offline Dave Shepard

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Re: Dry White Pine with waves
« Reply #4 on: April 15, 2017, 02:10:16 pm »
Belt tension is critical under these conditions.
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Offline ladylake

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Re: Dry White Pine with waves
« Reply #5 on: April 15, 2017, 04:12:56 pm »


 Dry pine like to build up gum on the blade fast, check that.  Steve
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Offline Sixacresand

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Re: Dry White Pine with waves
« Reply #6 on: April 15, 2017, 08:37:44 pm »
Even with new 4 d blades I had drizzle diesel on the blade to get decent boards from dry or pitchy pine.  Also, as mentioned on FF many times, Start the CUT on the top end of the log.
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Offline Ga Mtn Man

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Re: Dry White Pine with waves
« Reply #7 on: April 16, 2017, 08:58:42 am »
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Offline Sixacresand

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Re: Dry White Pine with waves
« Reply #8 on: April 16, 2017, 01:22:37 pm »
WM LT-40 and some stuff to get logs to the mill.

"I ain't as good as I once was
But I'm as good once as I ever was"
And My saw milling skills are improving.

Offline Brad_bb

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Re: Dry White Pine with waves
« Reply #9 on: April 16, 2017, 09:53:56 pm »
Assuming your tension is at the factory setting, and you have a sharp blade....1)slow down and give it time to cut through the harder knot, and 2) read this  http://www.forestryforum.com/board/index.php/topic,95719.0.html   
See if turning the log end for solves it.  Let us know.
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Online Peter Drouin

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Re: Dry White Pine with waves
« Reply #10 on: April 17, 2017, 05:55:56 am »
Cutting to slow, Next time give her some the T, 7s have to eat as fast as you can.
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