USING THE JACOBS GEAR HOBBING MACHINE TO CUT HELICAL GEARS

摘要

In January to August 1976 a series of articles by T.D.Jacobs was published in the Model Engineer (ref 1) describing a gear hobbing machine designed to be within the capabilities of the home workshop. While the machine, of fabricated construction, was designed primarily to cut spur gears the author mentioned modifications to enable it to cut helical and bevel gears without giving a great deal of detail. However he did clearly state the engineering and geometric principles involved.