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Thread: Lathe Chuck Anti-Spin Dog

  1. #1
    Supporting Member astroracer's Avatar
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    astroracer's Tools

    Lathe Chuck Anti-Spin Dog

    I have a need to drill some larger diameter holes in pieces set up in the lathe chuck. I use a drill chuck on a taper in the tailstock. Over the years I have spun the chuck on the taper a few times when the drill catches in the work piece. Not a good thing but what is a guy to do?
    I had that problem tonight drilling out some 5/8" nuts with a .6195 dia. drill. All the chuck wanted to do was spin. Especially when a little bit of chatter freed it up. I needed to fix this so I could finish a job.
    I dug thru one of my scrap aluminum drawers and came up with this... A slip collar from a computer shaft.

    It fit perfectly over the nose of my drill chuck.

    I thought oh man this is doable!
    I grabbed another piece of scrap aluminum. 3/16 thick, laid out a pattern off the top of my head and cut it out on the VBS. Smoothed it off with a flap disc and some ScotchBrite and here it is.

    Drilled and tapped three holes in the collar and dog and bolted them together.

    See next post
    45 Best Harbor Freight Tool Modifications


  2. The Following 3 Users Say Thank You to astroracer For This Useful Post:

    Hotz (06-12-2015), Jon (06-11-2015), kbalch (06-15-2015)

  3. #2
    Supporting Member astroracer's Avatar
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    astroracer's Tools
    500+ Homemade Tool Plans

    The dog worked like a charm, I got the nuts drilled out without a hitch (or a spinning chuck) and was pretty pleased with the work I did tonight.




    These were the pieces I was drilling out. Made them a heavy slip fit over the bolt to use as axles for a wagon I am building


    Mark
    Forge Build Guide


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

    Hotz (06-12-2015), Jon (06-11-2015), Paul Jones (06-11-2015), PJs (06-16-2015)

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    Good idea, astroracer! Thanks for posting.

  6. #4
    kbalch's Avatar
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    Thanks Mark! I've added your Lathe Chuck Anti-Spin Dog to our Lathe Accessories category, as well as to your builder page: astroracer's Homemade Tools. Your receipt:



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