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Actual machining content making a hand ball

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  • #16
    Originally posted by true temper View Post
    Ball is 1 1/4” in dia. I blued a piece of high speed tool and marked a radius on it. Then took a cutoff wheel on angle grinder and roughed it out. Then took a 1 1/4” stone in die grinder and tuned it up.
    I didn’t have hardly any chatter I cut it at 500 rpm.
    I am selling my directional drill the guy buying it was complaining that the knob to move the seat was broke, so I made a new one.
    Nice job! Very impressive. What lathe are you using?

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    • #17
      Nardini 14x40

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      • #18
        Ok I'm damn impressed. I came here expecting a ball turner, not a fabulous radius tool. Well done!

        I use the same lathe at work, yours must be in much better knick. That one would never do that.
        21" Royersford Excelsior CamelBack Drillpress Restoration
        1943 Sidney 16x54 Lathe Restoration

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        • #19
          Nothing magical about it rough it out with a zip disc and clean it up with die grinder. Make sure you include some relief . Try it for yourself.
          yes my lathe is in pretty good shape. Click image for larger version  Name:	FEC5B594-2AE6-4974-8886-9C6DF835EDDC.jpeg Views:	3 Size:	2.28 MB ID:	1939045
          Last edited by true temper; 04-18-2021, 01:34 AM.

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          • #20
            That's the same way I've always made my own radius form tools. You can make custom sizes by dressing the grinding wheel to specific sizes with a diamond dresser.

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