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Subject: 
Re: High Strength Powered Steerable pivot wheel
Newsgroups: 
lugnet.robotics
Date: 
Wed, 23 May 2001 12:56:51 GMT
Viewed: 
699 times
  
Problem is coming up with a strong enough steerable joint.

All the replies were apparently trying to help you to create a steerable
wheel with no motors in the assembly.

Did you consider rotating the entire motor/wheel assembly?

The advantage is that you don't need a drive to go through the rotating
components, as a flexible wire can deal with the movement.

The disadvantage is that it's difficult to make a rotating device which
can deal with the vertical forces involved in the "shrimp" design.

Maybe you can keep the entire front as a rigid assembly and put the
mounting points on a turntable on the top of the shrimp?  It won't give
as tight a turn radius as rotating the drive wheel.

I don't suppose using Legos in the lost-wax process to make metal Lego
pieces, then welding them together, would be a fair way to solve the
strength problems.



Message has 1 Reply:
  Re: High Strength Powered Steerable pivot wheel
 
IN my design the motor and wheel assembly are one unit. The problem has been keeping the rotation point stong enough. Hopefully I can play around with some things this weekend. I will probably order the large turntables from pitsco. They should (...) (24 years ago, 23-May-01, to lugnet.robotics)

Message is in Reply To:
  High Strength Powered Steerable pivot wheel
 
I am building a shrimp-style rover along the lines of what Mario Ferrari built. I uses 6 powered wheels. A pair on each side in lateral boggies, One in the front on an articulated arm, a rear fixed to the chassis. Problem is coming up with a strong (...) (24 years ago, 21-May-01, to lugnet.robotics)

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