Designs of the involute modified gears under VB、Pro/ENGINEER

This text is to calculate the geometrical dimension of the involute spur gears,having designed procedure software in Visual Basic language,it is suitable to the standard gears and the involute gears.It can figure out the result rapidly and accurately,reduce the handwork greatly and improve working efficiency,especially in calculating the mesh angle of modified gears play an important role.And take a pair of involute modified gears without side crack to clench the teeth as an example to explain.Realize the accurate model of the involute modified gears and the design of dynamic imitation under Pro/Engineer2001.