with R the radius of flat-end cutter, a the tool inclination angle and j , j respectively the first and second derivative of the spline at the cc-point. From the above equations, the initial inclination angle is given by:
with R the radius of flat-end cutter, a the tool inclinationangle and j , j respectively the first and secondderivative of the spline at the cc-point. From the aboveequations, the initial inclination angle is given by: