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Posted (edited)

Coos bay is similar to the box cut but I use 1 less cut. Compression side first at a 45* angle undercut, then the same on the side closest to you so you form a v in the cut if you can imagin that, still on the underside. You should note where the two cut are in the top of the limb and then power through the top cut until she pops off. It leaves a triangular shaped hinge on the stubb.

Edited by Rich Rule

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Posted
Coos bay is similar to the box cut but I use 1 less cut. Compression side first at a 45* angle undercut, then the same on the side closest to you so you form a v in the cut if you can imagin that, still on the underside. You should note where the two cut are in the top of the limb and then power through the top cut until she pops off. It leaves a triangular shaped hinge on the stubb.

 

 

Yeah bro , that's my cut of choice also , takes a bit if practice but works well .

 

 

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Posted

Undercut as much as you dare (not a gob, just the width of the bar)

Shave in the sides a bit, then a top cut directly in line with the bottom cut (as fast as possible obviously)

Posted

Ta very muchly Coleman, was just about to ask for some pics! :thumbup:

Little embarrassed to admit that the coos bay trangle cut is new to me, but makes sense. Will be trying it out on monster sycamore takedown on friday :biggrin::thumbup:

Posted

coos bay is different bro , it involves a hinge.

the triangle is just three cuts and makes the limb pop off and land flat , id use the coos bay or a bore cut for felling and the triangle aloft where direction wasn't a factor

Posted

To clarify;

 

Coos bay (as described by Beranek) is faceless. Cut a strip both sides, and chase the uncut strip in the direction of fall. Has no directional control. A felling cut for heavy head leaders.

 

Triangle cut is a variation of the "golden triangle" cut. Which involves two face cuts at 90 degrees to the direction of fall, then chase the triangle of uncut wood. Again for dropping heavy head leaders, described in older husqvarna saw manuals.

 

Variations are used for heavy horizontal limbs ( replacing faces with kerf cuts for the triangle, adding a kerf undercut to make a Coos bay a box cut etc).

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