Hear is a software to mill gears with automatic g code generation. You need to either use a hand ground end mill two lipped to get a correct involute form,mount it on the vertical spindle. bring the cutter to the start point preferably X0 of G0 code.
you can also use a std milling cutter from the side of the head head angled to suit helix angle.
the distance you want to cut is after the code generation.
WARNING. please dont mess with the software input window. Just input Number of teeth,, length of teeth, angle between to start face and end face..
Here is how the inputing window looks like
Number of teeth.
Face width
Angle Between Faces
Invert rotation (FOR LH OR RH)
Dont change unless you know what you are doing. Please write down the letters, correct spaces, * asteric etc. If you mess up write as original and it will work.
Unfortunately in this thread there is no link to upload the simple software I have unless you email me.
its on the web as
Acerca de gcode_helgears Version 1.0
regards every one
Vasantha