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Subject: 
Re: Casters
Newsgroups: 
lugnet.robotics
Date: 
Wed, 23 Aug 2000 12:46:21 GMT
Viewed: 
912 times
  
"Adrian Drake" <tremor@apk.net> writes:

It might be thus:  When the motors engage, there's some torque in the body
that would tend to lift the nose of the vehicle up (think of a dragster, how
it pops a wheelie under acceleration).  Thus, when under acceleration, the
front of the vehicle is lifted slightly, loosening up the friction in the
caster joint and allowing it to swivel more easily.

Yes, that's my impression too.

From the pictures it seems that the caster joint is made
from a single plate with holes, which creates a lot of
friction because the axle cants(?) under weight.  A better
design would be to use two plates at some distance.

Jürgen

--
Jürgen Stuber <stuber@loria.fr>
http://www.loria.fr/~stuber/



Message is in Reply To:
  Re: Casters
 
It might be thus: When the motors engage, there's some torque in the body that would tend to lift the nose of the vehicle up (think of a dragster, how it pops a wheelie under acceleration). Thus, when under acceleration, the front of the vehicle is (...) (24 years ago, 22-Aug-00, to lugnet.robotics)

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