Hello, I'm new here and just a novice with understanding of the basics. I have 8 u-joint cups that I need to machine on my lathe, to fit my lawn tractor. In the attached picture, the blue arrow is showing a groove that I need to widen 0.040" to fit my driveshaft yoke. The material is quite...
I am trying to get a circular groove cut for a small mold I'm making (like for a lego brick). I use circular interpolation, but it comes out as an oval (out about .005”).
How would I achieve an accurate circular groove?
Here is a picture of the CAD model: