I don't know how to make this work.
I want to flow a curve along the surface of the model, just a profile curve. There doesn't seem to be a way to specify the depth of the cut. Only "Stock To Leave."
If I set it to a positive number, the toolpath is above the model.
If I set it to 0, the toolpath is on the surface of the model.
If I set it to a negative number, the toolpath is below the bottom of the model.
If I want to cut along the curve, onto the surface of the model 0.020. how do I do that?