As has been mentioned earlier, Zane and myself are doing a joint 3D project, the frames for the GWR 8 wheel tender. He had already done the basic outline of the frames and I was tasked with doing the axle-boxes and some other details. I will continue my side of it on this thread to keep it all together. So far, I have done 1 of these axle-boxes and will be copying it for the other 7:
This is done from plans of the 8 wheel tender and other ones which show the details better.