[Deke]

Fantastic! I like how two different approaches end up in similar designs.

A comment about the hex bearings that is my opinion and I am sure will differ from person to person. Even though they cost a little more, they simplify assembly by removing the need for precision machining of shafts to get a good fit into the bearing. Round shafts would need a light press fit, or loctite, or maybe some sort of knurl to fit tight into the bearing. So the hex removes the need for any of those three things while providing slip fit and proper bearing usage. It's the never ending battle of cost versus benefit.