Trying centerbore for the first time

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rreidnauer

ArboristSite Operative
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Location
Nanty Glo, PA
Alright, gonna put myself in the hotseat with Streblerm and let you guys critisize my work.

For the last year, I had this tree on the border of the property that's been of increasing concern. It's gotten to the point that I don't trust to even mow around it anymore. It's got about 30~35 feet still standing, and about 14" at the base. As far as felling is concerned, about everything that can be wrong, is wrong. It's dead, it's leaning hard, also a lot of side lean, it's covered in wild grape vines, and has several, (albeit smaller) widow-makers hanging above, and the base is surrounded by broken branches and entangled vines. There's no proper escape paths, as it is heavy brush behind it, as well as a high creek bank and creek. There's also potential for throwbacks from a nearby tree. It just sucks. Here's the culprit:
05-21-07_1101.jpg

So after 30 minutes of cautious cleanup just to get to where I can get to the trunk, we end up with this:
05-21-07_1129.jpg

Now, most of the dead trees I dealt with on the property in the past were pretty straight, and I just performed a typical notch and back-cut, but this one was just screaming barberchair to me. I thought this would be a good candidate for a centerbore. I made a nice straight 80~90 degree face cut, and ever so carefully plunged in for my centerbore, which came out surprisingly well in alignment to the face cut, though, a bit too low. I left the saw in the cut so you can see the alignment. Side lean is very apparent here.
05-21-07_1134.jpg

Alright, very cautious (dare I say nervous) I am now, and I quickly cut the back strap and at the first sign of movement, I'm outta there on my best possible escape route, 90 degrees to the fall, and away from the other trees.
05-21-07_1136.jpg

It came down without a hitch, but not terribly surprising with dead wood, it fell about 10 degrees off from the hinge orientation due to it's heavy side lean. I could have roped it, but it was able to fall harmlessly as it was.
05-21-07_1138.jpg


So, accepting all critisism for my doings. I already know I got the bore cut too low (same height as the back of the face notch) and I buggered cutting the backstrap. (assuring a perfect back cut was the smallest of my concerns at the time. :laugh: )
 
You did good!!!

Anytime you cut a tree like that you have a pretty big pucker factor. Nothing to be ashamed of there.

I want to add that you did a really nice job of "prepping" the tree by clearing all the brush and debris away. Nothing like a clean work area.

Ed
 
Good looking undercut, I am not a fan of this bore cut thing, why not just use a triangle style backcut? It was a little tree, but prety scummy looking. With the bore cut you spend more time looking at what you are doing, lining up the cuts and so on. With a normal backcut you can look up a lot more. In the videos I have seen showing the bore cut method, the guy never looks up. Anyways, trees on the ground, nice work.
 
I agree with clearance about this whole "bore cut" phenomenon that is happenin' around here. To each his own I guess...

Not bad. That tree was no where near a candidate for a bore cut like that. But if you were just practicing good job. Face cut looked alright as well.

no notch for me on that one........just a back cut woulda dun it...hell maybe just a rope and snap it over......

That is gonna bite you in the butt someday l2edneck my friend... be careful.

Gary
 
Borecut:

I have had a couple of very heavy leaners. small notch. Bore to a couple of inches for backstrap. Then cut the back strap and get away. It takes a second or so for the tree to "pop" and then go on over. Usually can be at least 15 feet away by then. I don't use it a lot, but every now and then.
 
Thanks for the compliments. (I'm surprised I got off so easy! :D )

It's probably been dead for 2 1/2 years now, and was really just falling to pieces. The trunk had significant checking with an unknown core integrity, and I wasn't about to attempt a regular backcut on this one.

A centerbore cut was just something I've been wanting to try. Start small and work up to bigger things. As Clearance noted, bore cutting can draw away quite a bit of attention better served above, but I had little trust in this scummy tree, so once I had the tip well buried beyond a likely kickback, my eyes were regularly up where they should be. That's sort of what I meant by "surprisingly well in alignment to the face cut" since I paying a lot of attention to the world above me.

Well thanks again for the grading. :bowdown:
 
Thanks for the compliments. (I'm surprised I got off so easy! :D )

It's probably been dead for 2 1/2 years now, and was really just falling to pieces. The trunk had significant checking with an unknown core integrity, and I wasn't about to attempt a regular backcut on this one.

A centerbore cut was just something I've been wanting to try. Start small and work up to bigger things. As Clearance noted, bore cutting can draw away quite a bit of attention better served above, but I had little trust in this scummy tree, so once I had the tip well buried beyond a likely kickback, my eyes were regularly up where they should be. That's sort of what I meant by "surprisingly well in alignment to the face cut" since I paying a lot of attention to the world above me.

Well thanks again for the grading. :bowdown:

Good job!

Keep it safe, learn a little, have some fun , and for your next assinment: http://www.youtube.com/watch?v=A_UqhcByRdY&mode=related&search=
 
"Rope" a Dope

no notch for me on that one........just a back cut woulda dun it...hell maybe just a rope and snap it over......

all in all good job....way to be safe aswell!!!!!

5 stars bud :rockn:

ROPE !!!! Just say no :cry: :cry:
Real men use wedgies ( no, I mean, "wedges" ):hmm3grin2orange: :hmm3grin2orange:
 
+2

Looks fine ta me too! :clap: And I don't blame you for taking that approach on that particular tree, me being pretty much a chicken when it comes to standing dead, the less time under one the better imho. And you definately don't want to be whackin' wedges in or shaking things up (down). On clearing the work area first, excellent!

:cheers:

Serge
 
I would like to see a picture taken from a greater distance once it was down, to get a better perspective as to the direction it fell. Looking at the picture where you cleared out the limbs, vines etc. Did it fall left, right, backwards towards the lean, or forward against the lean?????? Which direction of fall were you seeking? And did it go that way? Hard for me to tell from the last photo as it is too much of a close up. Thanks. Tom
 
I would like to see a picture taken from a greater distance once it was down, to get a better perspective as to the direction it fell. Looking at the picture where you cleared out the limbs, vines etc. Did it fall left, right, backwards towards the lean, or forward against the lean?????? Which direction of fall were you seeking? And did it go that way? Hard for me to tell from the last photo as it is too much of a close up. Thanks. Tom

Hey Tom. Sorry, it's all cut up and gone, so no additional pics. In the pic you are referring, the goal was to have it fall to the left, with the lean. I would have loved for it to fall back against the lean, and into the brush, but there was way too much lean, and like Sprig said, I wasn't about to go sluggin' wedges into that mess. In the last pic, (I was backed up to the creek bank to take the pic) I'm lined up right behind the hinge. It fell about 5 degrees to the right of where I was aiming. (10 degrees off of hinge orientation) The hinge didn't hold on long, and there was a bit of weight above in those wild vines. I could have left a little more meat on the one side of the hinge opposite the side lean, but I doubt it would have helped much considering how dry and brittle it already was. It didn't really matter where it fell, as it was all open area, just that there was some other branches of a nearby tree I was trying to keep out of as much as possible.
 

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