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More lathe art

Discussion in 'A BEGINNER'S FORUM (Learn How To Machine Here!)' started by Jimsehr, May 14, 2017.

  1. Jimsehr

    Jimsehr United States Active User Active Member

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    Playing around with making a little art on the lathe. It's a metal ball with legs. Made out of a 1/2 sq alum piece.


    [​IMG]

    jimsehr
     
    brino, sanddan, jbolt and 8 others like this.
  2. WoodBee

    WoodBee Netherlands Steel Registered Member

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    Intriguing..
    I would love to learn a little about the how!
    Peter
     
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  3. Jimsehr

    Jimsehr United States Active User Active Member

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    I am trying to make a free floating square inside a 1/2 inch ball as an art project. So I am dreaming up ways to turn a square piece into a round ball. And I think this will work. I will start with 1/2 inch sq cubes and cut the free floating squares inside them then I will form the ball with the hand ground form tool that I made. It will take two homemade form tools to complete the ball. To make the part shown with the legs I used a cube held in a 1/2 inch sq 5c collet with a collet stop in it. Then I made a 1/2 radius form tool about 5/16 wide to form ball . Then I turned cube in collet and formed it the other way. When I make the part with the sq inside I will first hold cube in collet then form 1/2 radius in center of part ,then hold on the 1/2 ball to use other homemade radius tool to finish both ends of ball . I will post pic when I get it done.
    Jimsehr
    Oops I meant a 1/4 inch radius to form the 1/2 inch ball.
     
    Last edited: May 15, 2017
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  4. WoodBee

    WoodBee Netherlands Steel Registered Member

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    Jim, thanks for the explanation. Nice work! Did you experience a lot of chatter with the form tools?

    Peter
     
  5. Jimsehr

    Jimsehr United States Active User Active Member

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    WoodBee
    I have made a lot of radius form tools and have found that if I give the tool enough top back rake I don't have too much chatter. But in this case I may use both my homemade ball turner and a form tool.
    Jimsehr
     
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