As I am just getting into home machining, I don't (yet) have a mill. I wanted to build a ball/sphere cutting tool for my mini-lathe, but when I searched for existing plans, they all required a mill to build. Consequently, I created my own design for tool which could be built using the tools I had available. No doubt there is room for improvement in the design - however, it does work, and I'd like to share it with others who may be similarly situated. Also, I'm sure the many experienced people on this site can make useful suggestions.
FYI: The tool locks onto the compound rest with two cam locks. The large brass adjustment screw is used to adjust the cutting radius. The ball end on the handle was cut using the tool.
FYI: The tool locks onto the compound rest with two cam locks. The large brass adjustment screw is used to adjust the cutting radius. The ball end on the handle was cut using the tool.