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Thread: Transverse drilling attachment V2

  1. #1
    Supporting Member Christophe Mineau's Avatar
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    Jul 2014
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    Christophe Mineau's Tools

    Transverse drilling attachment V2

    I already showed my side drilling system on the lathe :
    Homemade Transverse Drilling Attachment

    This first version has the drawback of having a too big chuck and too long attachment sleeve behind it so that it really works only with short bits.
    I recently found a new kind of smaller chuck and imagined a way to attach it at the end of a shaft with the bare minimum additional pieces.

    Here is how I did it :

    The mandrel is a small three jaws mandrel to be used on a power screw driver. It is quite precisely made.
    It has an Hex shaft. Here is how I imagined attaching it at the end of my 12 mm shaft. I simply drilled a side hole in the 12 mm shaft like if I wanted to use a set screw.

    But instead of using a set screw, I just filled the hole (two sides) by welding a little spot.
    In order to avoid any projections, I wrapped the chuck and shaft with a piece of aluminum sheet.

    I then cleaned up the welded joint on the lathe to get a smooth surface on the shaft.

    Here this is the little fixture I use on the metal lathe QCTP. You can see that the chuck can be pulled back
    much more than on the previous version.

    And here on the wood lathe :

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

    Jon (Apr 8, 2016), Paul Jones (Apr 9, 2016), PJs (Apr 8, 2016), scoopydo (Apr 9, 2016)

  3. #2
    Content Editor
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    Aug 2013
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    Thanks Christophe Mineau! We've added your Transverse Drilling Attachment to our Drilling and Drill Presses category,
    as well as to your builder page: Christophe Mineau's Homemade Tools. Your receipt:

    2000 Tool Plans

  4. #3
    PJs is offline
    Supporting Member PJs's Avatar
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    Sep 2014
    Northern CA
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    PJs's Tools
    Nice Christophe. Now with your indexer you are set to go! Thanks, ~PJ
    ‘‘Always do right. This will gratify some people and astonish the rest.’’
    Mark Twain

  5. The Following User Says Thank You to PJs For This Useful Post:

    Christophe Mineau (Apr 9, 2016)

  6. #4
    Supporting Member Paul Jones's Avatar
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    May 2014
    Del Mar, California
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    Paul Jones's Tools

    Great idea about the wielding the part through the two small holes. Nice to see your cross drilling and indexer projects.

    Thanks, Paul

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

    Christophe Mineau (Apr 9, 2016)

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