Amazon Astro Rear Caster Tire/Wheel

I wanted to create a replacement tire for the rear wheel on the Amazon Astro robot. Since it's a closed system with no replacement parts, I wanted to help others get their little guy back on the road. This is a fairly easy replacement aside from removing the original tire/wheel. It seems they had it placed very securely on the bearing and hub. It took a bit of prying and force, but it is removable. After printing, simply slide it on, and it should be good to go.