Saw the other post, so thought it’d put up a shot of my segway. Custom built at the tech shop in Menlo Park, CA. Some information is posted on a website i started (but never finished). Was riding it around at the Las Vegas regional. If any other teams are interested in building their own i’d be happy to help out :")
Links:
http://scooterlabs.org/
http://revision3.com/systm/techshop/
(Photo Courtesy of Spectrum IEEE)
What was the build cost on that? And weight capacity?
Cost me around 3grand to make…valued around 4.
$700 torque sensor for steering (you could use a $1 pot instead :")
$1,000 A123 Li-Ion batteries (can build your own pack for $400)
$572 for motors and gearboxes (i found them for $150 a pair on ebay)
I bet someone can build a nice one for under 2k.
15MPH
10 mile range
Never tested the max weight it can handle…but it’s ridden fine with a 250 rider, and fine with 2x 150 riders :")
–Danny
This looks an awful lot like the one on the episode of systm 
Great job on the show!
For those that don’t watch Systm, Daniel was featured on an episode along with his segway. He did a awesome job! http://revision3.com/systm/techshop/
opportunity to promote systm some more :"P this is the other project i did with them http://revision3.com/systm/n64/