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Author Topic: Sawing sequence 90 or 180?  (Read 1428 times)

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Offline Kwill

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Sawing sequence 90 or 180?
« on: February 12, 2019, 10:02:44 PM »
My question is after you make your first cut do you flip the log 90 or 180?. Ive seen both in videos. On my homemade mill so far while sawing cedar i always flipped them 90. Mostly ive been making  8x8 5x5 4x4 and some 2x4 and 2x6 2x8. On the reccomendation from magicman when i start back milling im going to center the log on the mill. Ive added a jack to be able to do this. I guess certain logs or lumber needed from the log would make the sequence of cutting different. Just wondering what others do?
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Offline WV Sawmiller

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Re: Sawing sequence 90 or 180?
« Reply #1 on: February 12, 2019, 10:11:23 PM »
   I normally flip 180 to get to the width of boards I want so I have 2 sides that are free of bark and no longer need edging once I get below the bark. I will occasionally still flip 90 degrees and saw so I only have to edge on one side or if there is a knot or limb stub or such that needs to be trimmed for the cant to lay flat. In fact that is what I did on the last ash log I sawed 2 days ago. This also helps if the log/cant is pushing the limits of what I can saw.

   Usually I start with any serious heart check in a vertical position so that after I trim the first cut then flip 180 when I flip the cant the next time I will end up sawing parallel to the check and less damage to the boards.
Howard Green
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Dad always said "You can shear a sheep a bunch of times but you can only skin him once"

Offline Kwill

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Re: Sawing sequence 90 or 180?
« Reply #2 on: February 12, 2019, 10:14:07 PM »
Yeah my thought was if im sawing boards id flip 90 so i didnt have to edge 2 sides.
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Offline WV Sawmiller

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Re: Sawing sequence 90 or 180?
« Reply #3 on: February 12, 2019, 10:26:29 PM »
Kwill,

  I flip 180 so I don't have to edge at all on most of my boards. I only have to edge 1-2 flitches off each cut. I normally saw my final cant down to about 3.5"- 4" then stand the flitches up against the cant for extra rigidity, edge them then I resume sawing the cant down to the bed.
Howard Green
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Dad always said "You can shear a sheep a bunch of times but you can only skin him once"

Offline Larry

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Re: Sawing sequence 90 or 180?
« Reply #4 on: February 12, 2019, 10:28:32 PM »
I let the log tell me.  I thought for a long time 180 was the only way to go but finally realized it depends on what the log looks like.

I would guess now I rotate 90 a little over half of the time.
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Offline Magicman

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Re: Sawing sequence 90 or 180?
« Reply #5 on: February 12, 2019, 10:32:29 PM »
I try to never say never nor always.  My answer is it depends upon the log and the cut list.  Smaller logs tend to be 180° whereas the larger ones tend to be 90°, but even that is not always. 

I guess that I said all of that and didn't say anything.  ::)
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Offline Crossroads

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Re: Sawing sequence 90 or 180?
« Reply #6 on: February 12, 2019, 10:42:24 PM »
Most of the time I rotate 90, in my opinion it’s more efficient because by the time I’ve rotated 270° I’m ready to make boards on smaller logs. On logs over 32” when I’ve rotated 180 with the wide head I can cut a flitch down to 18 1/4” drop to 12 1/8” drop to 6” then flip all 3 cants up and burry 2 tail gunners in 2x6’s 
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Offline Kwill

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Re: Sawing sequence 90 or 180?
« Reply #7 on: February 12, 2019, 10:42:37 PM »
Kwill,

  I flip 180 so I don't have to edge at all on most of my boards. I only have to edge 1-2 flitches off each cut. I normally saw my final cant down to about 3.5"- 4" then stand the flitches up against the cant for extra rigidity, edge them then I resume sawing the cant down to the bed.
Ok so you make your first cut then flip 180  with the cut square side down then make a cut then flip 90 and start cutting boards?
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Offline WV Sawmiller

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Re: Sawing sequence 90 or 180?
« Reply #8 on: February 12, 2019, 10:55:28 PM »
   Yes but I usually get a flitch or two on that 3rd and even the final face. The go on the loader arms till I get low on the cant then I edge them and finish off the cant. This is normal but as others mention above I will vary this in some cases as the log dictates.
Howard Green
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Dad always said "You can shear a sheep a bunch of times but you can only skin him once"

Offline Southside

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Re: Sawing sequence 90 or 180?
« Reply #9 on: February 12, 2019, 10:56:35 PM »
I find that on larger logs if I flip 180 I get square cants much more frequently - say 20" + or ones with sweep and other issues. Smaller than 20" and nice and straight 90 is faster and stays square, plus it gives you two views of what the inside looks like at the same time.  
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Offline OffGrid973

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Re: Sawing sequence 90 or 180?
« Reply #10 on: February 12, 2019, 11:07:04 PM »
Sometimes it depends how much saw dust is in the eyes, nose and ears...but for slabs I stick to 180, for final boards do 90, 90, 90 until I realize there was some bark on a bunk at some point causing not to be square and start all over again, LOL.
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Offline Sixacresand

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Re: Sawing sequence 90 or 180?
« Reply #11 on: February 12, 2019, 11:17:20 PM »
I usually flip 180.   After I make the 90, I check  the outside face and bunk with a square.  If needed, I can make adjustments by using the two way clamp

Offline Kwill

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Re: Sawing sequence 90 or 180?
« Reply #12 on: February 12, 2019, 11:28:44 PM »
I mill cedars so some logs have quite a but of taper. So when i started milling i would do the 90 90 90 and ge the log as square as i could then start cutting it into what i needed. Is worked ok but i felt i could get a few more boards but with the taper they would be short ones. I done a few upgrades to the mill while being stuck in the shop with all the rain. Im hoping to saw the next couple days. I need to make several 12ft 2x6  and another 8x8. Thanks for the ideas
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Offline Woodpecker52

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Re: Sawing sequence 90 or 180?
« Reply #13 on: February 12, 2019, 11:34:42 PM »
I usually cut 1st face turn 180 cut for my desired  width, turn 90 cut then turn 180 for cant.  what few boards under bark I edge at the end.   I am only cutting 4/4 boards right now. Is this wrong or can I do it a better way?
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Offline Percy

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Re: Sawing sequence 90 or 180?
« Reply #14 on: February 12, 2019, 11:46:51 PM »
I find that on larger logs if I flip 180 I get square cants much more frequently - say 20" + or ones with sweep and other issues. Smaller than 20" and nice and straight 90 is faster and stays square, plus it gives you two views of what the inside looks like at the same time.  
With that super 70 revved up, you could turn 720 faster than most of us turning 90...... I have the envy bad .   ;D
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Offline Southside

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Re: Sawing sequence 90 or 180?
« Reply #15 on: February 12, 2019, 11:53:18 PM »
I find that on larger logs if I flip 180 I get square cants much more frequently - say 20" + or ones with sweep and other issues. Smaller than 20" and nice and straight 90 is faster and stays square, plus it gives you two views of what the inside looks like at the same time.  
With that super 70 revved up, you could turn 720 faster than most of us turning 90...... I have the envy bad .   ;D
Yea - but when you throw a log over the back stops and it lands 15' past the mill you loose all that time you saved to begin with when you have to fish said log back out of the wall.   :o
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Offline Chuck White

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Re: Sawing sequence 90 or 180?
« Reply #16 on: February 13, 2019, 06:35:38 AM »
Most times I make a couple of cuts, then flip 180° and saw down until I get the width of boards I want!

On really big logs I usually flip 90°, taking a few cuts off of each side as it's rotated on the mill!
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Offline 47sawdust

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Re: Sawing sequence 90 or 180?
« Reply #17 on: February 13, 2019, 07:20:15 AM »
When I'm lazy it's 180.If the logs are dirty,it's 90 so I am cutting into fresh wood.As others have mentioned it makes edging easier as well.Actually 90 is really 270 as I turn the log into the backstops then check to see the my opening face is square to the bed.
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Offline WDH

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Re: Sawing sequence 90 or 180?
« Reply #18 on: February 13, 2019, 07:54:27 AM »
Turning 180 relieves more stress in a log. 
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Re: Sawing sequence 90 or 180?
« Reply #19 on: February 13, 2019, 10:02:57 AM »
I saw for myself and maximum yield. I will place log how I want it on the bed then take a thin slab off the top trying to get it straight / flat. after I am happy with a flat face I will roll it 90 degrees and do it again till I have a nice flat face maybe leave a little wane depending. Then flip it another 90 and take the slab then make all my boards. this makes a 3 sided cant.

This leaves me with 1 live edge on everything. So I can either use them with the live edge or trim it off and get maximum board width for the length I need.

This does minimize my firewood for the year though. Since I burn wood for heat it means I need to cut more :)

alot of times any board with wane gets cut into stickers. I have found you can never have to many stickers.


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