Thank all of you guys for your help. Gearguru, it appears that your method works, and I've been able to get the gears to to mesh correctly with the three planet gear configuration by your calculations. If I need to change anything, I will definitely know how to do it now. Thanks
Sorry if this seams really simple, but it is my first time working on a project involving planetary gearing. I have a sun gear with a diametrical pitch of 20 teeth/in and 16 total teeth, planetary gears with the same pitch and 12 teeth each, and the annulus with 40 teeth and the same pitch.
As...
