The balance of the two wheel inline Segway is obtained by producing a small "shock" to the hand hanging onto the heavy side grip. This shock will cause the rider to move their body away from the hot handle and therefore shift the balance to a more stable configuration. The more the Sewgay leans, the stronger the shock. This is why it is never wise to grab the low side handle when it is laying on the ground. Pookie ----- Original Message ----- From: "Olin Lathrop" To: "Microcontroller discussion list - Public." Sent: Monday, May 02, 2005 11:56 AM Subject: Re: [EE] Home made Segway equivalent / Self balancing Unicycle > Jose Da Silva wrote: > > There is a better version of the segway for problems like that. I recall > > seeing a 2 wheeled version with the wheels in-line > > But then how does it stay up? The Segway moves itself back and forth to > maintain ballance front/back, and the distance between the two wheels keeps > it ballanced sideways. If the wheels were in line, then it would be > naturally stable front/back, but there is now no mechanism left to ballance > sideways. This could be achieved the way a bicycle does where gyroscopic > forces from falling over feed back into the steering, but that only works > when you're moving. > > > The picture I saw > > was in some 1977 encyclopedia or something like that, and it was large > > enough to hold a patient flat on top of it in case of accident on the > > trails, so the segway is not new. > > Are you sure this did any kind of ballancing at all? Could this just have > been something with wheels to make litter carries a little easier? > > > ***************************************************************** > Embed Inc, embedded system specialists in Littleton Massachusetts > (978) 742-9014, http://www.embedinc.com > -- -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist