根据等距曲线的几何特性,阐述了以基五边形设计等距曲线的设计原理、做图方法,并加以证明。同时讨论了基五边形边长和形状的变化对等距曲线的影响,从而确定了基五边形的设计做图范围和特性。进一步完善了等距曲线型面连接接的设计途径和方法。 According to the geometric characteristics of isometric curves, the design principle and design method of isometric curves based on pentagons are described and proved. At the same time, the influence of the variation of the length and the shape of the base pentagon on the isometric curve is discussed, and the scope and characteristics of the design of the base pentagon are determined. Further improve the isometric curve of the connection and connection design methods and methods.