pic: Harbor Freight 8 inch tire on 3d printed hub

[MrBasse]

So far it feels pretty strong, we'll test a bit more when the rest of our belts come in. My hope is that most of the load will be taken in the tire and soften the blow to the wheel itself.

I wasn't a huge fan of the look of the hubs from AndyMark so we designed our own but used some of their proven geometry to interface with pulleys and sprockets. There were probably more efficient designs, but these look good.

I'll post CAD soon, but I would want to make some changes first. The wheel is a tight squeeze in the tire and requires a bit of coaxing to get it together. All in all it turned out okay though.