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Spar butt drill jig

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  • #1

    Spar butt drill jig

    I need to drill the 5 holes (per spar) in the butt ends of my main spars to accept the larger bushings (that I'm making in compliance with the CAP STC).

    Does anyone have a drill jig similar to the one shown below (picture scarfed from Rob Lees' website) that I can rent or borrow to do this job?

    Thanks,
    Tim
    Attached Files
    Tim Hicks
    N96872
    Tags: None
  • #2
    Re: Spar butt drill jig

    I have no jig.

    I wonder if you could get or have made a pilot drill bit whose pilot matched the old bushings and the other part matched the new bushings.

    A tool & die maker runs a buisness nearby and he does all my reamer and blade sharpening. I bet a guy like him could make a pilot drill or reamer or cutter that would do this job.

    Dave

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    • #3
      Re: Spar butt drill jig

      I just noticed this post from Bill Berle below:

      Drill Jig Available for Spar Upgrade - The Taylorcraft Discussion Forums
      http://vb.taylorcraft.org/showthread.php?1779-Drill-Jig-Available-for-Spar-Upgrade
      Check here first. Topics can be anything related to Taylorcraft.

      He's got a jig that he has offered (back in Oct 2005) to loan.
      But it looks like he hasn't visited this site since September.

      Dave,
      Thanks for the good suggestion. Let me check around with toolmakers in my area to see what is available to me.

      Both Bill and Robert Lees mentioned using a Forstner bit.
      Can you imagine a toolmaker making a .688" Forstner bit with a 1/2" (or whatever the existing hole is) pilot?
      Or some bit that makes a very clean hole?
      Tim Hicks
      N96872

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      • #4
        Re: Spar butt drill jig

        I have the setup I used when I did my spars. Not as complex Bob's but it worked fine. I had a Machinist make a pilot drill guide. I also have the proper bit. I will be gone till after Jan1. I could send it to you then. Just send me your address.

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        • #5
          Re: Spar butt drill jig

          I am picking up a T-craft to be restored after the 1st of the year. It may be several months before I start on the spars, but I would appreciate your email address so I can contact you to rent/borrow (whatever) your set up. thanks. Lee Nicklas [email protected]

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          • #6
            Re: Spar butt drill jig

            Laz,
            Thank you very much. I would like very much to borrow your jig. Check your Private Messages on this site. I'll leave you my adddress there.
            Tim Hicks
            N96872

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