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  1. Burnham

    Letter box

    Or use the quarter cut, which is faster, but no more effective.
  2. Burnham

    Letter box

    Indeed, indeed. :) The hard part is judging the degree of swing any one specific tree will produce...very chancy to count on.
  3. Burnham

    Letter box

    Make the face with a horizontal and a sloping cut, per normal. Then bore the center out of the hinge, either from the face side or the rear (bar length relative to tree diameter can govern the choice), at the same elevation relative to the horizontal cut of the face as you intend to place the...
  4. Burnham

    Letter box

    Exactly, Erik...before the back cut, the slot looks like the mail slot in a front door.
  5. Burnham

    Letter box

    Yup, I did it to make the hinge flex over easier. With a short spar, little weight up top, it makes a pull sooooo much easier. And with a full crown, but some back lean that you are wedging to force the tree to commit to the face, gutting the hinge eases the wedging effort.
  6. Burnham

    Letter box

    When Pete McTree joined me to observe the USFS treeclimbing instructor's workshop last week, he pointed out a butt cut in a pile of wood set aside for firewood permit holders. He said something like "Look at that, a classic letter box felling cut". I laughed and told him that was a stem I...
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