Recent content by rts453

Thank you for the help. Let me see if I can clarify things a bit. Here's a pic if the example. On the lathe I can shorten and lengthen the distance of the cutting edge to the center of the pivot. The gauge that measures that distance gives me a reading in mm of the radius at which it...

The manual lathe I work on has a degree scale for the arm. I have the radiuses in mm and the diameters in mm of two zones I have to cut. What formula can I use to determine the angle which delimits the two zones? For example: Say I have an item 15mm in diameter. Inner zone A is to have a...