The Bore wing|borewing| bore-wing cut for palms

Eric Frei

I haven't really gone into detail about this cut but I can tell you that 90% of climbers who come here and take on the dreaded in this town get stuck!

And this is the way out.

I've seen guys with 44's and 46's stuck and had to cut them out with another saw.

In this example we were only using a 020 but you'll get the picture.

__________________

bigshea13

thats unique...the wing cuts. over here we use something similar to prevent barber chairing of species like ash and elm{trees that are stringy in structure if peeled.
the object is to place your notch/scarf in

.....plunge{bore}cut behind your notch{whatever amount of hing wood you want, ...thats how far back you start your plunge cut. try to make it as flat and even as possible.} be sure you plunge cut extends to back of tree and is stopped several inches from going out other side.

you can now either continue to cut directly threw or you can pull out saw...assess situation... then when ready cut off those few inches of holding wood that you left.



this allows you to allows felling without barberchaing or saw pinching

Steve Tipton

We use the same procedure for falling forward leaners.

__________________
Heightmaster

Eric Frei

No, you guys are missing the boat. This is a method of blocking down palms where the tension clamps your bar and you get stuck in the tree.

By boring thru and leaving the sides the section cannot compress your bar. Then by cutting in the wing (no more than a bar width) again the section wont clamp the bar and you can break it off.

Otherwise you can end up having to perform this operation.

__________________

Steve Tipton

Gotcha. I'll give it a go. I usually cut a series of notches on a grabby palm, mostly Phoenix.

__________________
Heightmaster

bigshea13

its for the same reasons. the first notch wont pinch unless you cut deep{no need for it} the plunge cut removes the center of the trunk leaving the hinge wood and the remainig outside . there is no way to pich your bar.

your way though allows a person to pick off chunks without tipping them over. kinda like a high tech snap cut. thats a nice saw todem pole. ps those stihls make good wheel chocks..

shaggs

Good info Ekka.
I was going to make a good BORING joke....but didn't want to be THAT guy!

arborcorp

Great tip,
Thanks very much, I know I'll be useing this cut.

newguy18

nice.

__________________
Have your say join us today.


old schooler

IanUk

I get what youemean with it closing up on the bar, think i would prefer to use a rear handled saw to bore in though. dont have that much control doing it with top handled.

Garry Brockley

Nice one ekka there always other way around a problem. great video as usual

__________________

stirmantrees

ughhh.
you know the drill.

Eric Frei

See 1st post, loaded to Youtube.

__________________

stirmantrees

i use plunge cuts quite often on those wicked monos. but i have never thought about that technique specifically. i have sometimes cut in a little ways and then make a 2nd cut right next to the first cut then advance that cut further until resistance is met then repeat in the the first kerf, etc. it works quite well, especially on large palms. i have noticed pushing helps but that would require one handed cutting and it is against our company policy.

whats the deal. you know scientifically. it seems that your kerf is not true to the size of the chain as fibers fold back on the bar. whats your take
oh yeah. thanks

Eric Frei

My take???, shit sticks! Kill'm all!!

The kerf closes up and the spinning chain can clear it's own path but the bar doesn't have that privilege and gets clamped.

Bore cut them through and leave a little holding wood each side, nip the holding wood and break the block off. The bar wont get clamped.

__________________

KevinE

Thanks Eric,

I took down a Cotton Palm & a Canary Island date palm today using this method on both (my first try at doing it this way)

Your method was sensational on the Cotton Palm mate! I managed to get it down in one piece!

The date palm was a bit more complicated because bits come off as you cut into it, but in the end, it still worked!

I was using my MS260C with a 16" bar (3/8 HP chain). It got bogged in the date palm a bit lol! Might try it with a different saw next time

Eric Frei

We did a fat assed cuban royal the other day, luckily out of a bucket truck.

Even that clamped the bar real bad for about 3m below the green head shaft. These wet palms are getting payback on me!

__________________

Garry Brockley

I'm finding that all the cocus palms, especially the ones with big heads are really tough to use any method on for at least a meter below the head at the moment, ive been useing this method since early 2008 and never really had a problem beforecocus palms

__________________

willem

I'm an absolute novice with palms

Is the pressure caused by friction (heat) and the moist content of the palms?


If acces isn't a problem



Why don't cut them?

Attached Thumbnails

 

Eric Frei

Palms do not have heartwood and a vascular cambium like trees.

The whole diameter of the palm is a working vascular system, like a set of pipes. Palms are more elastic, they bend. I think it has something to do with all of that, and you get compression (fibres closing up).

Yeah, that machine would be great to grab them.

__________________