Calculation of curves for weld removal on the model

Excel tables to calculate the patterns in the manufacture of welded drain on the model (up removal). The table diameter of the pipe is introduced, the number of units and the length of the discharge forming units. Get the dimensions for constructing patterns, learn the angle, the radius of the outlet and mounting dimensions. By selecting these outlets can be designed with any characteristics, as well as to project a torus. Macros not.