A method creating accurate outline surface of space cylindrical cam is presented by computer software.The space trace equation of cutting-tool center is set up and programmed by Pro/ENGINEER.The space trace equation is as reference curve equation
by variable section sweep tool
keeping rectangle section of cutting-tool is perpendicular to the reference curve and move along tangent line of reference curve
and the outline surface of the cam is created.Visualization and parameterization of outline surface design of the cylindrical are realized.