WTD: Stair climbing robot

I would like to purchase a real product.
Google has found a bunch of student projects, but not real products.
Thanks for any links.
hamilton
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hamilton wrote:

You'll need to be more specific. Most treaded robots can climb anything, including stairs. Some cleverly designed wheeled variations can also climb stairs. A more complicated, yet elegant solution are legs. And in this case you're right, in that practically no one sells such a robot due to its disproportionate high cost to low usefulness ratio. What's more, few hobby-oriented robotic products do anything useful or complicated. So if a company did sell a robot capable of climbing stairs, it would probably break the bank.
In other words, ramps are still the easiest way to traverse stairs ;)
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hamilton wrote:

Size? Price range?
You better have A LOT of money for a robot that can reliabily climb different kinds of stairs. This is still something of a Holy Grail for robotics, and the robots that offer this are usually prototypes that are not for sale.
With enough money it's possible to build a stair-clibming robot. Whether it will climb all stairs, especially while not destroying the surface (carpet, tile, whatever) of the stairs, is another matter.
-- Gordon Author: Constructing Robot Bases, Robot Builder's Sourcebook, Robot Builder's Bonanza
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