Sacrificial SMT fence

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  • Tom Miller
    Veteran Member
    • Mar 2003
    • 2507
    • Twin Cities, MN
    • BT3000 - Cuttin' it old school
    #1

    Sacrificial SMT fence

    This SMT fence add-on comes in handy for a number of uses, such as non-thru-cut crosscuts. I also use this type of sacrificial fence for cutting lap joints for torsion boxes, etc. It acts as a backer board to alleviate tearout.


    Click image for larger version Name: Sac SMT Fence - Front.jpg Views: 1 Size: 48.7 KB ID: 788710




    Click image for larger version Name: Sac SMT Fence - Back.jpg Views: 1 Size: 40.1 KB ID: 788711


    It's just a couple pieces of 3/4" baltic birch, butt-joined with glue. The parts are sized such that it doesn't get in the way of the SMT clamp. I plan to add a t-track on top to make attaching stop blocks a little easier.

    As the end gets chewed up, I cut it off and slide the fence down. The attachment bolt holes are spaced out every 5" so there are always two at 10" apart for attachment.

    Regards,
    Tom
    Last edited by Tom Miller; 03-21-2006, 07:50 PM.
    Tags: None
    • Brian G
      Senior Member
      • Jun 2003
      • 993
      • Bloomington, Minnesota.
      • G0899
      #2
      That's mighty fancy.

      My sacrificial SMT fence is 'bout sacrificed out. It's a high-class, very straight cedar board.

      Would you really need to dedicate good T-track for the stop? How about just running a 3/4" groove down the length and using something like this in the slot?

      Geeze. . . between you and Larry, lately, there's helpful jigs and fixtures bursting the seams of the forum.
      Last edited by Brian G; 03-21-2006, 08:04 PM. Reason: because I'm an idiot
      Brian

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        • LCHIEN
          Super Moderator
          • Dec 2002
          • 22031
          • Katy, TX, USA.
          • BT3000 vintage 1999
          #3
          most people just sacrifice the black plastic tips.
          Loring in Katy, TX USA
          If your only tool is a hammer, you tend to treat all problems as if they were nails.
          BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questions

            Comment

            • Pappy
              The Full Monte
              • Dec 2002
              • 10490
              • San Marcos, TX, USA.
              • BT3000 (x2)
              #4
              Looks slick, Tom!
              Don, aka Pappy,

              Wise men talk because they have something to say,
              Fools because they have to say something.
              Plato

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                • John Hunter
                  Veteran Member
                  • Dec 2004
                  • 2034
                  • Lake Station, IN, USA.
                  • BT3000 & BT3100
                  #5
                  I am going to have to make one like that!
                  John Hunter

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                    • scorrpio
                      Veteran Member
                      • Dec 2005
                      • 1566
                      • Wayne, NJ, USA.
                      #6
                      Ouch, I wouldn't want to chew up something well-made like that. When I need a sac fence, I find that a 3-4" wide strip of 3/4" ply clamped to miter fence works perfectly. And if I need a stop block, I clamp it where I need it. Some of my saw setups have a veritable forest of clamps

                        Comment

                        • Tom Miller
                          Veteran Member
                          • Mar 2003
                          • 2507
                          • Twin Cities, MN
                          • BT3000 - Cuttin' it old school
                          #7
                          Originally posted by LCHIEN
                          most people just sacrifice the black plastic tips.
                          Black tips are long gone!


                          Originally posted by Knuckles
                          Would you really need to dedicate good T-track for the stop? How about just running a 3/4" groove down the length and using something like this in the slot?
                          Actually, I figured the t-track would be quicker/easier, and I always have some around (Rockler's 50% off t-track kits). I won't bother cutting a groove for it; just lay it on top.

                          Originally posted by scorrpio
                          I wouldn't want to chew up something well-made like that.
                          Hmmm, must be an optical illusion -- trust me, it ain't so pretty.

                          Regards,
                          Tom

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