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Couple sweet gum videos

Started by CCC4, October 02, 2013, 06:34:11 PM

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CCC4

Cut some tall sweet gum yesterday. I only have 2 of the 3 videos uploaded. This timber was really tall and was VERY wind swept. Thanks for watching!  popcorn_smiley

http://www.youtube.com/watch?v=L72Ox5Rb1NM&feature=c4-overview&list=UU_NjqCPS3PCA_PGz4NCZuLA

http://www.youtube.com/watch?v=VV21xMEETgQ&list=UU_NjqCPS3PCA_PGz4NCZuLA

John Vander

Into the 2nd video (2min.51sec.), the stump shows very little hinge. Improper hinge with such a shallow (and too deep) scarf...lucky that tree didn't smack you upside the head! The moment the tree passed the 20degree vertical fall line, crown mass sets in. Lack of proper hinge wood causes hinge to snap prematurely, crown mass spins the tree around and the butt end of the tree wacks the faller like a giant baseball bat.
Tree and saw accidents nullify years of forestry experience.

CCC4

Thanks! I will try and work on that.  ;)

beenthere

Looked to me like, with the rot involved, and the lean of the tree as well as no appreciable top, that felling that tree was pretty well calculated.

If a large canopy and lower limbs, then John has a point. And I do like some hinge for control and anti-kickback off the stump.
south central Wisconsin
It may be that my sole purpose in life is simply to serve as a warning to others

CCC4

Thanks beenthere! Much appreciated.

The "said" tree was actually sound, the stump was so odd shaped and weigthed funny...I dang near cut it off at my waist to get above that bulbus stump. Sweet gum pulls fiber something fierce. Being as that most of our sweet gum is in hollows, I have to fall alot of them uphill or out of creeks...well I'm never in a good escape position in some of the deep creek banks...I have tried leaving a hinge and have seen fiber pull over 8" out of the log, mainly comes right out of the heart.

I found that "IF" I must leave a hinge due to possible skipping back over the stump...a 2" "box hinge" is where it's at. I try to "jump" all sweet gum if at all possible.

I watched the video again, the violent flail of the butt was due to the creek bottom...it looked close to me, but was no where near, it jumped forward around 4 ft, and I had backed away.

WDH

Looks like a lot of oak regeneration under the sweetgum. 
Woodmizer LT40HDD35, John Deere 2155, Kubota M5-111, Kubota L2501, Nyle L53 Dehumidification Kiln, and a passion for all things with leafs, twigs, and bark.  hamsleyhardwood.com

John Vander

Yeah, creeks and banks...slopes...they can make getting away hard. I was felling with a friend of mine a few weeks ago. Large oak located on a 30 degree slope. We put the tree down in the road. My friend started cutting on the lower branched, but I told him the tree is going to roll over and to be careful. Well, the tree did roll over. My friend tried to run but a branch wacked him over the head! People think that when the tree is on the ground all danger has passed. :o
Tree and saw accidents nullify years of forestry experience.

grweldon

CCC4,

I'm not too experienced in this, but I'm getting better all the time.  From what I see, with your very narrow wedge cut, when the tree starts to fall, the top of the wedge cut contacts the bottom and tends to want to lift the trunk off the stump. With that method the hinge wood the tree has no option but to pull out where the hinge is.  I would suspect that if you used a wider wedge cut, say 45° minimum (I shoot for 60°) the additional room before the upper part of the wedge cut hits the lower allows the fall to progress further before contact.  The hinge wood tends to break at the stump (or at least crease) as the tree falls before pulling.  I rarely cut anything over 24" and I shoot for a 1-2" hinge depending on how the tree starts to fall.

Just a little food for thought...  try it and see!

Are you going to mill those trees?
My three favorite documents: The Holy Bible, The Declaration of Independence and The Constitution of the United States.

CCC4

Quote from: WDH on October 02, 2013, 09:07:37 PM
Looks like a lot of oak regeneration under the sweetgum.

Yes Sir, I noticed that also, along with the lack of sweet gum regen. I have a therory for the oaks, that creek gets out of it's banks and that set of sweet gum is in the bend of the creek. I would assume that high water floated the acorns up and around the sweet gum.

Hey WDH, are there male and female sweet gum trees? In that entire stand of sweet gum I noticed VERY few sweet gum seeds...could that stand have been all male??

How is your acorn crop this year? Ours seems excellent, large acorns and alot of hickory nuts also. I also have come across really nice big persimmons...reckon we are in for a hard Winter? I'm going to be prepared cause I think we are due for one. Thanks for viewing my videos!

CCC4

Quote from: John Vander on October 02, 2013, 09:28:24 PM
Yeah, creeks and banks...slopes...they can make getting away hard. I was felling with a friend of mine a few weeks ago. Large oak located on a 30 degree slope. We put the tree down in the road. My friend started cutting on the lower branched, but I told him the tree is going to roll over and to be careful. Well, the tree did roll over. My friend tried to run but a branch wacked him over the head! People think that when the tree is on the ground all danger has passed. :o

Yeh, your preaching to the choir there...I got my jaw broke about 8 weeks ago from something after falling a magnum White oak...I was knocked out and never really figured out what hit me.

CCC4

Quote from: grweldon on October 03, 2013, 12:14:08 PM
CCC4,

I'm not too experienced in this, but I'm getting better all the time.  From what I see, with your very narrow wedge cut, when the tree starts to fall, the top of the wedge cut contacts the bottom and tends to want to lift the trunk off the stump. With that method the hinge wood the tree has no option but to pull out where the hinge is.  I would suspect that if you used a wider wedge cut, say 45° minimum (I shoot for 60°) the additional room before the upper part of the wedge cut hits the lower allows the fall to progress further before contact.  The hinge wood tends to break at the stump (or at least crease) as the tree falls before pulling.  I rarely cut anything over 24" and I shoot for a 1-2" hinge depending on how the tree starts to fall.

Just a little food for thought...  try it and see!

Are you going to mill those trees?

Thank you Sir for viewing. I try and always jump my timber. Grade logs shouldn't have any pull out what so ever. With our relatively short timber, I don't want to loose anything off the butt. With that being said I want my hinge to be thin and break rather than pull. I know this is considered a more dangerous way to log but honestly I would be out of a job ifn I pull alot of fiber.

As far as the end process of the timber, I supply (3) hardwood tie mills, (3) pine yards and (1) scrag mill. My background for the last 19 years has been in and around sawmills and logging. I was the head sawyer for 9 years at a ERC mill where I sawed on a full auto circle mill and I have about 900 hours on a bandsaw. My sawing career is over thank God... nothing will burn you out faster than cramming logs through a mill at a rate of 4 to 5 a minute for (9) years.

Thanks

keen

Good vids, nice work. Stump jumping is great when you don't have a lot of canopy above you and can stay at the stump. We plunge most of our hard maple harts out and just leave two corner post to eliminate fiber pull and still get a controlled fall, may be something you want to try on the ones going up hill to give you a little more time to get out of dodge. If were producing mill bought wood we are graded on fiber pull and stump height so we wouldn't get away with the humboldts. Again nice work, I bet you get a lot of wood on the ground at the end of the day.

WDH

CCC,

No, sweetgum does not have male and female trees like ash, mulberry, and persimmon.  Each tree produces both male and female flowers, just not at the same time so that it cannot self-pollinate. 

Our acorn crop here this year will be sparse.  I read in the newspaper today where the bears in the Mountains of North Carolina are roaming further down in the valleys because of a poor acorn crop.  They are coming more in contact with people as they search for food. 
Woodmizer LT40HDD35, John Deere 2155, Kubota M5-111, Kubota L2501, Nyle L53 Dehumidification Kiln, and a passion for all things with leafs, twigs, and bark.  hamsleyhardwood.com

beenthere

QuoteIf were producing mill bought wood we are graded on fiber pull and stump weight so we wouldn't get away with the humboldts.

That line leads me to have to ask why not a humboldt, as I understand the humboldt leaves all of the butt log intact, and the notch is out of the stump wood only. And if the notch is open enough, then the tree can drop with no fiber pull out of the butt log.
What am I missing? 
Don't understand what the weight of the stump left in the woods figures in here either.
south central Wisconsin
It may be that my sole purpose in life is simply to serve as a warning to others

WDH

I suspect that he meant stump "height". 
Woodmizer LT40HDD35, John Deere 2155, Kubota M5-111, Kubota L2501, Nyle L53 Dehumidification Kiln, and a passion for all things with leafs, twigs, and bark.  hamsleyhardwood.com

beenthere

That makes sense for the stump. ;)
Now about the humboldt.  ??
south central Wisconsin
It may be that my sole purpose in life is simply to serve as a warning to others

WDH

In my procurement days, we always considered acceptable stump height to be 6" or less, but that was in pine.  Not sure that is reasonable in hardwood. 
Woodmizer LT40HDD35, John Deere 2155, Kubota M5-111, Kubota L2501, Nyle L53 Dehumidification Kiln, and a passion for all things with leafs, twigs, and bark.  hamsleyhardwood.com

CCC4

I think he is talking about stump height. Ok, well I am self taught pretty much, in the books (which I have not read) they act like you need to throw your face in at darn near knee height and put this huge massive angled face in, thus reuiring a high stump. Well, there is always the narrow faced over kerfed method, I can generally keep and average of 4" on about all hardwoods. The bigger hardwoods, depending on flair of the stump, I sometimes get to almost 6".

Sets of double cut oak logs will make you stay low. I try to keep everything low, just depends on what kind of terrain.

My background of ERC is what brought on the "Low Humbolt"...hey did I just "coin" a cut?? Anyway, in red cedar, you don't ever want to show up at a mill with conventional face cut...I've seen loads turned at the gate. Problem is for the cedar liner people...they MUST have an 8'3 log to get (2) 4' pieces, a conventional can take the lumber down to 8' flat er 8'1. See what I'm saying.

CCC4

Oh, I am also pretty bad to go above flaw... but depending what the flaw is, I may re-cut the stump. I am guilty of leaving some high co-dominate stumps...if in an area really remote er something.

chep

like said before. consider plunging your face cut and just leaving tabs on the outside of your hinge. I have experience on it with on oak, ash, and maple. Wouldnt it work on the sweetgum? Pretty much eliminates the fiber pull and gets your keester away from the stump.   Also doesnt take much time to do.

just want you to go home safe.

keen

lol yeah I meant height :D, to long of a day I guess.
When plunging the face there is no need for a knee high stump or huge angled face. Works fine at any height and with a narrow face.
   I see what you are saying about the conventional face, a load of logs sent home would not be a good thing. That's some really tight trim tolerances.

grweldon

CCC4,

Like I said, I'm really new to all this.   I guess I was assuming quite a bit since I had no clue about your background or experience. Obviously you are extremely experienced and I could learn a lot from you.  You just mentioned "heart pull" and being an engineer, I analyzed the mechanics and concluded that the method you use could result in the heart pull that you mentioned. I really didn't have a clue that all the factors had been taken into consideration.

Would you please take to time to explain a few things that I don't understand?

I've heard the term "Stump Jumping" but I suppose I don't actually know what it means.

I'm also not clear at all about why a load of Cedar would be turned away because of the way it was cut.

Thanks brother... didn't mean to offend...
My three favorite documents: The Holy Bible, The Declaration of Independence and The Constitution of the United States.

treeslayer2003

sweetgum here acts weird, it won't chair but if ya don't cut it off it will break up or pull bad. I jump gum too most the time, beech as well as it can act funny to. pine n poplar I use open face directional method, face bore leaners like Keen said. oak, we have so many different kinds it just depends on subspieces and where it growing. this being said, stump jumpin is something non pros shouldn't try. ccc4 and myself have many years in the woods full time. vids are for entertainment purposes only.

thecfarm

Quote from: CCC4 on October 03, 2013, 10:37:03 PM
Anyway, in red cedar, you don't ever want to show up at a mill with conventional face cut...I've seen loads turned at the gate. Problem is for the cedar liner people...they MUST have an 8'3 log to get (2) 4' pieces, a conventional can take the lumber down to 8' flat er 8'1. See what I'm saying.

A conventional face cut will leave some of the slanted cut still on the butt log. Notice he said they MUST have an 8'3 log. A conventional cut would not work in that case. Unless you used it and then cut if off and then marked the logs out. Which that would be a waste of wood. Or this is how I am seeing it.
Model 6020-20hp Manual Thomas bandsaw,TC40A 4wd 40 hp New Holland tractor, 450 Norse Winch, Heatmor 400 OWB,YCC 1978-79

beenthere

Quote from: treeslayer2003 on October 04, 2013, 08:33:20 AM
sweetgum here acts weird, it won't chair but if ya don't cut it off it will break up or pull bad. I jump gum too most the time, beech as well as it can act funny to. pine n poplar I use open face directional method, face bore leaners like Keen said. oak, we have so many different kinds it just depends on subspieces and where it growing. this being said, stump jumpin is something non pros shouldn't try. ccc4 and myself have many years in the woods full time. vids are for entertainment purposes only.

And stump jumpin is ...  what?
south central Wisconsin
It may be that my sole purpose in life is simply to serve as a warning to others

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