@tbuelna, thanks for the reply. My sticking point was how to calculate the width of the gear teeth. For two spur gears to mesh, half of the circumference is tooth and half is root which is very straightforward. I tried the same philosophy with a ring gear and got interference. I just realized...
I'm outside my area of expertise, so I apologize if this question is a little basic. I'm modeling an epicyclic gear train, and have hit a snag. I can model the spur gears, but I'm having trouble finding a good reference on how to size the teeth on the ring gear. I've exhausted Google...
