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Thread: Lathe dogs

  1. #1
    Join Date
    Jul 2007
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    Lathe dogs

    Bought some drops from Shilen before their move. Planned to use them to try different things on my 12X36 lathe. Picked a up used D-4 dog plate and some lathe dogs. Discovered that the MT5 dead center would not go through the hole in the dog plate. Finally got around to do something about this yesterday and opened the hole up until the dead center would go through the plate. Center drilled both ends of a drop, put on the dog and discovered the the leg of the dog would not reach the plate when the drop was between centers. Looking around on the web I couldn't find much info on lathe dogs where they specified the length of the leg. The lathe is speced with a MT5 taper in the spindle. Could I use a MT4 as it is shorter?

  2. #2
    Join Date
    Aug 2005
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    821
    no, the mt4 is a smaller dia. You would need an adapter mt5 outside, mt4 inside. Just likely it would end up longer. You could make the dog legs longer - more messing around.
    Last edited by blades; 09-23-2020 at 06:02 PM.

  3. #3
    Join Date
    Feb 2006
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    Jerry,

    I had a similar experience. This is how I solved it.

    Justin
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  4. #4
    Join Date
    Feb 2003
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    VA
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    984
    I make my own dogs out of square stock. A shallow opposing V cut to grip the piece, two bolts to tighten the dog clamp, and a drilled and tapped hole perpendicular for the "dog" piece to extend as needed. Different sizes and lengths can adapt to anything.

  5. #5
    Join Date
    Jul 2016
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    Surprise, AZ
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    283

    Elegant solution!

    Quote Originally Posted by Zebra13 View Post
    Jerry,

    I had a similar experience. This is how I solved it.

    Justin
    I'm going to do just this. Thanks for the idea.

    GsT

  6. #6
    Join Date
    Sep 2003
    Location
    Oriental, NC
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    Quote Originally Posted by Zebra13 View Post
    Jerry,

    I had a similar experience. This is how I solved it.

    Justin
    Beat me to it. Easy solution.

  7. #7
    Join Date
    Feb 2003
    Posts
    159
    I stopped using faceplates decades ago.
    I chuck a piece of round stock in the chuck and peel it to a 30 deg. taper with the compound rest.
    Put the leg of the lathe dog against one of the jaws and cut metal. No messing around

  8. #8
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    Quote Originally Posted by Zebra13 View Post
    Jerry,

    I had a similar experience. This is how I solved it.

    Justin
    Great solution. Who'd expect less from a man who has a Gerstner tool chest.

  9. #9
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    Location
    Fort Worth Texas
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    Quote Originally Posted by Joe View Post
    I stopped using faceplates decades ago.
    I chuck a piece of round stock in the chuck and peel it to a 30 deg. taper with the compound rest.
    Put the leg of the lathe dog against one of the jaws and cut metal. No messing around
    Saw that on a TubalCain video on you tube last night. Good idea as well.

  10. #10
    Join Date
    Jul 2007
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    Fort Worth Texas
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    Quote Originally Posted by Wayne Shaw View Post
    I make my own dogs out of square stock. A shallow opposing V cut to grip the piece, two bolts to tighten the dog clamp, and a drilled and tapped hole perpendicular for the "dog" piece to extend as needed. Different sizes and lengths can adapt to anything.
    Took me a few seconds to visualize that but that's neat as well. Three good suggestions, love it.

  11. #11
    Join Date
    Feb 2006
    Location
    California...unfortunately
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    725
    Quote Originally Posted by adamsgt View Post
    Great solution. Who'd expect less from a man who has a Gerstner tool chest.
    Jerry,

    Ahhhhh yes...Gerstners. A real weakness for yours truly. At four of them and counting. I'm just a sucker for a nice piece of quarter-sawn white oak. Even had them make a table for my mother, which turned out beautiful. Great people to deal with.

    FWIW, I made my extended leg dog as I turn between centers just as Joe outined above. About as close to Zip Point Sh!t run-out on a center as you can get.

    Justin

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