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Thread: [Woodwind] Tone hole Cutter

  1. #1
    Christophe Mineau's Avatar
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    [Woodwind] Tone hole Cutter

    Hi !
    Here is a very specific tool made for shaping the top of a tone hole chimney.
    This is for tone holes that will be covered by a key. It is crucial that the pad of the key has a neat contact with the wood in order to avoid any leakage.
    The contact surface is actually reduced to a single ring if the tone hole has a slightly spherical top.

    Here is what we want to obtain :


    And here is how it is done :
    First, a guiding pin is turned down, given the diameter of the tone hole.
    And then a custom ground shaping tool is used to cut the spherical shape of what will be the cutting edge.


    Then I use my milling attachment to drill 6 transversal flat bottom holes with a small carbide end mill cutter.


    This will form cutting teeth




    Then I use a cutting disk on a Dremel to grind down the back of each tooth.




    Here I'm using my transversal drilling attachment on the lathe with this tool.


    Close up




    Finished Job
    Cheers !
    Christophe
    ________________________________________________________________
    Visit my Website : http://www.labellenote.fr/
    Facebook : La Belle Note
    All my personal works, unless explicitly specified, are released under
    Creative Commons BY-NC-SA license.

  2. The Following 8 Users Say Thank You to Christophe Mineau For This Useful Post:

    greyhoundollie (10-17-2018), Jon (06-19-2018), PJs (06-21-2018), rlm98253 (06-19-2018), rossbotics (06-19-2018), Seedtick (06-19-2018), thevillageinn (06-21-2018), volodar (06-20-2018)

  3. #2
    rossbotics rossbotics's Avatar
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    rossbotics's Tools
    Looks like it worked !

    Doug
    Comments are always welcome
    Doug



    Tool Plans for Sale by rossbotics




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    WOW, thanks for all of your post, fascinating work.

    Ralph

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    Content Editor DIYer's Avatar
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    Thanks Christophe Mineau! We've added your Tone Hole Cutter to our Woodworking category,
    as well as to your builder page: Christophe Mineau's Homemade Tools. Your receipt:




  6. #5
    PG1
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    Hi Christophe,

    very nice toolmaking. I plan to make a similar spotfacing tool with a 1.5mm guide pin, to uniform primer flash holes on cartridge cases. The commercial ones are the wrong shape -- just a #2 center drill in a holder-- and can thin the case too much.
    Is there a description of the milling attachment on your website?

    Paul

  7. #6
    Christophe Mineau's Avatar
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    Quote Originally Posted by PG1 View Post
    Hi Christophe,

    very nice toolmaking. I plan to make a similar spotfacing tool with a 1.5mm guide pin, to uniform primer flash holes on cartridge cases. The commercial ones are the wrong shape -- just a #2 center drill in a holder-- and can thin the case too much.
    Is there a description of the milling attachment on your website?

    Paul
    Hi Paul,
    Not on my web site, but here on my, yes:
    High Speed spindle tool for the lathe


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    Cheers !
    Christophe
    ________________________________________________________________
    Visit my Website : http://www.labellenote.fr/
    Facebook : La Belle Note
    All my personal works, unless explicitly specified, are released under
    Creative Commons BY-NC-SA license.

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