Sorry guys I edited Brian's post by accident... I think it's back to it's original form.
FWIW, machining these parts would not require drawing them just to get the G code. This is something which is easily programable just by hand writing the code. You need a 4 axis machine to machine the parts but you would regardless [whether you draw it and then use a CAM or just hand code it]
You'll need a tool which is ground to the shape of the tooth before you start, as well as the machining equipment.
The code in it's basic form is
F[set feed speed] S[set spindle speed]
G0 x0 y0 z [some dim larger than the major diameter]
G1 z [to minor diam of tooth]
x [width of tooth--this is the part that actually cuts the tooth]
G0 z [ move back up to clearance height ]
X0 A [360/# of teeth]
Repeat this times the # of teeth.
Voila..
J
JerryFlyGuy
The more I know... the more I realize I don't
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)