Welcome to ModelEngineMaker !If you have problems registering or logging in, please use the contact menu option to request assistance.
. If I'm thinking right, a bit of equal diameter to the gear should yield a 45 degree cut.
I built Chuck's fixture but rather than setting it up in the lathe I used it on my milling machine. Here is a video of me using it to cut a helical gear.gbritnell[youtube1]https://youtu.be/blaZ5tz0_6E[/youtube1]
Yes you need to make a new ‘angle piece’ for the fixture for about every gear you make. You also need to make a different ‘indexing wheel’ for each gear with a different number of teeth.