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Thread: Optical centre punch

  1. #1
    knoba's Avatar
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  2. The Following 11 Users Say Thank You to knoba For This Useful Post:

    gunsgt1863 (10-30-2017), janders1957 (07-28-2018), jere (08-12-2015), Jon (08-11-2015), kbalch (08-10-2015), oldcaptainrusty (10-29-2017), olderdan (10-29-2017), Paul Jones (08-08-2015), PJs (08-11-2015), tonyfoale (10-29-2017), zarembak (07-26-2018)

  3. #2
    Content Editor DIYer's Avatar
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    Nice tool, knoba!

  4. The Following 2 Users Say Thank You to DIYer For This Useful Post:

    Altair (08-08-2015), knoba (08-08-2015)

  5. #3
    knoba's Avatar
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    Thanks DIYer!

  6. #4
    Content Editor Altair's Avatar
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    Pretty thing to look at and look into. Great idea on the crosshairs. Spot on!

    Al

  7. The Following User Says Thank You to Altair For This Useful Post:

    PJs (08-11-2015)

  8. #5
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    wow thats a nice punch eyeglass as good as mine. :O)

  9. #6
    knoba's Avatar
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    Thanks guys'!

    Mornin' Cap!

    There's nothing shoddy about your punch, mine just looks fancy in a round tobacco tin...

  10. The Following User Says Thank You to knoba For This Useful Post:

    PJs (08-11-2015)

  11. #7
    Captainleeward's Avatar
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    i'm gonna get a tin toooo...:O)

  12. The Following User Says Thank You to Captainleeward For This Useful Post:

    PJs (08-12-2015)

  13. #8
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    Thanks knoba! I've added your Optical Center Punch to our Measuring and Marking category, as well as to your builder page: knoba's Homemade Tools. Your receipt:


  14. #9
    PJs
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    Knoba, Like I said I just love this thing and will be making one soon but realized you had a 17.8885mm spherical radius for your optics...how on earth did you determine that let a lone make it? I'll have to hunt for a tin though!

  15. #10
    Okapi's Avatar
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    A really good and unexpensive idea !

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