Good afternoon all

I have just gone through the worm gear tutorial and sadly it is flawed....The tooth geometry is drawn perpendicular to the shaft and allowed to wrap around the projected curve in the video where as this is not how the teeth are generated.

The teeth are perpendicular to the worm wheel and need to be generated from the center of the wheel around the shaft.

Anyone got any clues how this might be done?

Thanks in advance

Jack Neelands