I have temporary mobility problems where I can't walk for days. I am inspired by the Kiva robotic distribution system to make a device to transport me around the house, (or perhaps two or more units to pick up my bed and move it).
Basically I want a stool that I can sit on that can spin on the spot and drive in different directions over slightly bumpy flooring - maybe 1 cm level shifts. I will use manual control. Fancy Segway style stuff can come later.
I've looked at different technology including electric wheelchairs (which are far too large and cumbersome and expensive). I've also looked at electric skateboards including adaptations of RC aircraft motors - not for actual transport but for design ideas.
My requirements are two motors, one per road wheel, that have effective torque over the speed ranges required (0 - 1.5 m/s) and that are reversible. They will drive ~ 200mm road wheels via a reduction system and have proportional control.
The questions are what motor technology? And what controller technology? And what battery technology? Cost is an issue so perhaps hobby-grade systems might be the best choice?