I worked really hard today and finally fixed the issues I was having with the metal rod pinion gear holder and the cams. Those parts were giving me a lot of trouble.With that out of the way, I built a full outer shell to enclose the gearbox. I also put together a complete assembly and made an exploded view to show exactly how all the pieces fit together. It is looking really good and is almost completely finished.I just need to add a little bit of polish to the final assembly. After that is done, my next goal is to work on a parametric version so I can easily change the gear ratios and tolerances without having to rebuild the whole file.