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Subject: 
Re: Biggest lego wheel?
Newsgroups: 
lugnet.robotics
Date: 
Sun, 28 Dec 2003 21:26:48 GMT
Viewed: 
980 times
  
Possibly you mean this site?
http://www.magneticpie.com/LEGO/features/roverWheels/roverWheelsHome.html

build-your-own lego wheels.

Dan Lauber

"chris" <lego-robotics@crynwr.com> wrote in message
news:01ba01c3a5b6$bca70840$fa246ad8@hal9000...
if the goal is to climb stairs, i remember seeing some designs that manage
to function like larger wheels than they are.  i can't find the links, • maybe
someone remembers where.

was it lobster bot or something like that ?  it used canterlever arms or
bogeys, to allow smaller wheels to rotate around a larger radius than • their
own.  maybe it was a version of the mars rover.

but three long arms set at 120 degrees from each other, with small powered
wheels at the ends become larger radius 'wheels'.  i' sure  i'm confusing
two robot designs.  there's a way to power both the small wheels and the
arms, so they lift the robot up and over.

but also, tracks can be configured to catch the lip of the next step and
pull the robot up.

but, none of this helps if you have to use large wheels.  but something to
consider if you have the flexibility in design.

chris brenizer
----- Original Message -----
From: "Mike Reddy" <mreddy@glam.ac.uk>
To: <lego-robotics@crynwr.com>
Sent: Friday, November 07, 2003 4:23 AM
Subject: Biggest lego wheel?


What is the biggest lego technic wheel currently available? I have some
students
building a stair climber and they want to use BIG wheels in their design.





Message has 1 Reply:
  Re: Biggest lego wheel?
 
(...) Found that thanks. I showed it to some of the students, who you may or may not know were tasked with building a Lego Mindstorms robot to travers a stepped bridge in Pontypridd, South Wales. The brige is several hundred years old, has a rough (...) (21 years ago, 31-Dec-03, to lugnet.robotics)

Message is in Reply To:
  Re: Biggest lego wheel?
 
if the goal is to climb stairs, i remember seeing some designs that manage to function like larger wheels than they are. i can't find the links, maybe someone remembers where. was it lobster bot or something like that ? it used canterlever arms or (...) (21 years ago, 8-Nov-03, to lugnet.robotics)

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