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Thread: 4way tool post

  1. #1
    Supporting Member mklotz's Avatar
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    4way tool post

    QC toolposts are all the rage now but, though I use one, I still find the venerable 4way style faster to use in many cases. I have a number of homemade 4ways, several of them dedicated to various jobs.

    As an example, here's a general purpose one...



    It has slots to take two conventional tools (typically a general purpose turning tool and a 45 deg chamfering tool) as well as holes that accommodate two sizes of boring bars.

    On the other side is a cutoff tool permanently mounted to this 4way...




    If you make your own tool post be sure to arrange things so the handle used to tighten the lockdown bolt points at a convenient angle out of your way - typically your 4 o'clock direction as you face the lathe.

    The way I do it is to pin a chunk of hex to the lockdown bolt. A conical end is turned on this chunk. Then the bolt is assembled to the toolpost on the lathe and the bolt tightened with a wrench on the hex. Once a satisfactory tightness is reached, the 4 o'clock position on the cone is marked. Then the whole thing is disassembled and a hole drilled on the mark. The handle is then Loctited into this hole.

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    Last edited by mklotz; Jul 9, 2017 at 09:56 AM.
    ---
    Regards, Marv

    Failure is just success in progress
    That looks about right - Mediocrates

  2. The Following 12 Users Say Thank You to mklotz For This Useful Post:

    Christophe Mineau (Feb 2, 2017), emu roo (Nov 4, 2021), Floradawg (Nov 4, 2021), JTC (Sep 19, 2019), Moby Duck (Feb 1, 2017), mr95gst (Feb 2, 2017), PJs (Feb 2, 2017), Seedtick (Feb 2, 2017), sossol (Sep 17, 2019), Toolmaker51 (Nov 7, 2021), Tuomas (Nov 8, 2021), Woodgeezr (Feb 2, 2017)

  3. #2
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    Thanks mklotz! We've added your Tool Post to our Tool Holders category,
    as well as to your builder page: mklotz's Homemade Tools. Your receipt:




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  4. #3
    Supporting Member Christophe Mineau's Avatar
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    Nice idea, I think I will revive my old tool post, its true it can be kept set up with the best seller tools you use the most.
    I really like the built in parting tool and boring bar holders of yours.
    Thanks !
    Christophe
    Cheers !
    Christophe
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  5. #4
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    Manitoba Man's Tools
    Thanks for good photos and clear explanations. I can apply this to my homemade mill/lathe as well as my Atlas.

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    Supporting Member Toolmaker51's Avatar
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    Interesting to me as well, even 3 something years later. Getting use out of commercial 4-ways still, but would like to run off one custom made. Don't have CNC, but carving out one side for a rocker sounds like a good idea.
    Is there a way? Well, a vise on a rotary table would, but I know another and w-aay easier.

    And good utilization of hex geometry to set handle orientation, Mr. K. I usually use method common in gunsmithing, of space and threads per inch, being divisible by angles. Then face or create washer of correct thickness.



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    Last edited by Toolmaker51; Nov 7, 2021 at 06:42 PM.
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    Toolmaker51
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