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    #1

    Video of Tree Shear

    Here is the link to the first pics of the build.

    Custom made tree shear. - TexasBowhunter.com Community Discussion Forums
    http://discussions.texasbowhunter.com/forums/showthread.php?t=276853



    Here is the vid.

    Tree Shear 2012 Take 1.wmv
    http://www.youtube.com/watch?v=SPCYUEbt_cc&feature=youtu.be
    Tree, Shear, 2012, Take, 1




















    Then the oops!!


















    And here is the engineering failure pics!!

    Click image for larger version Name: 2012-03-31 14.08.21.jpg Views: 1 Size: 173.4 KB ID: 24894288

    Click image for larger version Name: 2012-03-31 14.08.37.jpg Views: 1 Size: 159.8 KB ID: 24894289
    Tags: None
    #2
    It's hard to explain but let's just say an 1 1/4" bolt plus a hardened 1" plate versus the cylinder clevis and rod threads.


    The threads lost.


    There was a clearance issue when the blades closed at that point which caused the damage.


    All well live and learn, I guess.

    Comment

      #3
      I guess I'm not seeing where the clearance issue was. Was it that the angle between the blade and hydaulic cylinder caused the cylinder end (where it attaches to the end of the blade) to bind up when the blade closed? If that's the case, probably all you'd need to do would be to move the attachment point to the frame toward the outside of the frame.

      Comment

        #4
        So does the tie in from the hydro to the actual shears need to be moved down towards The bottom by 3-4 inches?

        Comment

          #5
          Very nice. Sometimes figuring out the design issues is as much fun as building the original.

          Comment

            #6
            The fix to the problem is simple. I need to notch the blade where the clevis attaches to it to allow it to clear.



            The picture is indicating where the pinch point occurred.


            Click image for larger version Name: 2012-03-24 16.17.09.jpg Views: 1 Size: 148.3 KB ID: 24063229

            Comment

              #7
              Originally posted by TheGasMan View Post
              Very nice. Sometimes figuring out the design issues is as much fun as building the original.
              Only when its not expensive to find out the issue!

              Comment

                #8
                awesome build...... you going to add a claw in front of the guard you add later to hold the tree and be able ot pile them when you cut?

                Comment

                  #9
                  Originally posted by Huntin Addict View Post
                  Only when its not expensive to find out the issue!
                  Agreed

                  Comment

                    #10
                    I've got a cousin that made something like that. Only it pulls the tree out. No stumps to grow back.

                    Comment

                      #11
                      I see your problem, why not build a new end and use the same rod thats bent? I know I would.

                      Comment

                        #12
                        Sweet

                        Comment

                          #13
                          Impressive!

                          Comment

                            #14
                            Awesome

                            Comment

                              #15
                              Nice!!

                              Comment

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