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Routing tight radius templates?

Discussion in 'Luthier's Corner' started by Rowka, Dec 18, 2013.

  1. Rowka

    Rowka

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    I've got some pup templates and the corners are 1/4" radius.
    I can't find any top-bearing bits that small. Do you just use a straight bit and ride the shank against the template? Seems that would destroy the template in short order.
  2. bwardmusic

    bwardmusic

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  3. Beej

    Beej

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    I typically drill the corner with a 1/4 forstner bit and then ride the template with a 3/8 bearing bit...
  4. Hopkins

    Hopkins Supporting Member

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    3/16 pattern bits from Amana Tool. Part #47775. These are absolutely priceless bits, I use them with a small trim router, only after the rest of the rout is cut away. You have to be pretty careful not to cook that small bearing.
    http://www.toolstoday.com/p-5046-flush-trim-plunge-template-router-bits-w-upper-ball-bearing.aspx
  5. Rowka

    Rowka

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    Excellent! Thank you.

    THe corners of MM and J pup templates are what I'm dealing with.
  6. Rowka

    Rowka

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    Just ordered the 3/16 and 1/4 bits.

    Thanks Hopkins.
  7. tjclem

    tjclem

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    Disclosures:
    Owner and builder Clementbass
    It has always been the "P" templates that were trouble for me
  8. Hopkins

    Hopkins Supporting Member

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    No problem, glad to help

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