I have a design for a 4 motor walker that does this. It also self
levels the body on sideways inclines. I had never completed it though.
I'm about a month away from moving, and I hope that when I do move, I
can set up to essentially have all my electronics stuff accessible.
THe page hasn't been updated in like a decade, however it does show
pics of how 4 motors can perform the uprighting motion.
Hit the link at the top nav-bar for "Robots" and scroll down to MECI
If you are intent at doing this in 2 motors, consider the possibility
of a unique leg shape that forces it to upright itself if you run the
leg motor (one or both) in one direction continuously. A tilt sensor
could drop a resistor change into the microcore and cause an
exceptionally long pulse to keep the motor moving one way till the
tilt sensor rights itself.
Begin forwarded message:
> From: Neuron Craft <neuroncraft@...>
> Date: July 17, 2012 9:40:06 PM CDT
> To: "email@example.com" <firstname.lastname@example.org>
> Subject: [beam] Self-flipping walker
> Reply-To: email@example.com
> I am thinking to create 2-motor 4-leg walker capable of flipping
> itself back on its legs if it gets flipped over.
> Anyone implemented this before? I imagine having a tilt switch that
> momentarily increases the RC value for one of the front legs but I'd
> like to check with the list first for some thoughts and
> considerations on building such walker.