[Jeremiah H]

Originally Posted by MAteo9944

I went with the solid shafts so that I could use shaft keys instead of set screws. I do like the idea of quill shafts. I will have to look into them.
Hopefully one day soon I can get hold of an ME for long enough to go over all of the calculations for the strength of the system. As of now the design is still without the support of the calculations, so the sizes and types of components are subject to change.

Cool idea. I like it.
On the keys/set screw thing, I suggest looking into using hex stock rather than round. I know that it will make the build phase harder, but I believe that the advantages gained will be well worth it. The hex gives you six corners to bear the load, and I would think that you could drill quite a bit out of the center without losing much strength. I know hex is used in John Deere hay balers for the main driving shaft, and I have never heard of there being problems with them (not there, at least). JH