So, I have been thinking about doing a balancing scooter/robot project for a while now, and I thought I’d post here to see if anyone has any experience with these things.
At least for right now, I don’t want to carry people, but I do want something that can carry somewhere around 10-15lbs, since I figure that’s a good weight for my laptop as well as some other stuff.
What motors to use? I’d like to stay as far away from brushed motors as I possibly can, and I’m not really sure stepper motors will work for this. If I use a hobby brushless setup, I need to then worry about cogging at low speeds. That sortof leaves my last choice as a hobby RC car sensored brushless setup.
What wheels to use? I’d kinda like it to be a bit rugged, be able to go over grass and such.
Weight distribution? It seems like I have seen two ideals on this, one where there is a lot of weight at the top of scooter and one where there is a lot of weight at the bottom. Any input on this?
As for the base, I was just gonna made a flat platform out of PVC and mount the motors on that. I’d like to avoid gear/chain drivetrains as much as possible. as I have limited MechE resources (though I do have a CNC and full workshop occasionally provided by a friend), I’d like to keep the mechanical part of this as simple as possible.
The control theory part is easy, no questions about that at all.