Posted by Michael Gilligan on 02/08/2018 15:30:43:
Posted by thaiguzzi on 02/08/2018 15:04:59:
If you have a boring head for your mill, make a MT-parallel sleeve adaptor and housing for your top slide or tool post, a handle, and voila – ball turning tool.
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Fine in principle, but are you familiar with the Cowells lathe ? : **LINK**