Single piece, simple ball turner.

[tonyfoale]

here are a couple more pix. making a pushrod end, the base reason for making this ball turner. I mentioned that one of the reasons for making it to accept insert type lathe tools was the choice of cutting edges that can be used. Here I am using a round insert which leaves a smooth finish and blends nicely into the rest eliminating stress concentration.


Two views showing the turning of an 8 mm ball for a pushrod end cap. Click images for full size versions.