It’s been a while… sorry ’bout that. So here’s the skinny:
I got everything printed. programmed and assembled. The initial testing showed that there needs to be a fair bit more torque to get things going. I had it geared down by a factor of 7, which at my estimates would give a top speed of about 32 mph. Unfortunately the printed pulley just melted to pieces when I tried to drive it because of a lack of torque to drive it while a person was riding it. So I’m looking into planetary gears as an option now. Getting closer 🙂