Subject:
|
RE: Casters
|
Newsgroups:
|
lugnet.robotics
|
Date:
|
Wed, 23 Aug 2000 16:04:52 GMT
|
Original-From:
|
Wilcox, Doug <doug.wilcox@imckesson.com!Spamless!>
|
Viewed:
|
1283 times
|
| |
|
|
Although it's not obvious from the pictures, I do use two plates separated a
2-plate distance on the axles. I'm also using a cylinder piece (2x2), placed
upside-down as a bearing, which moves easily while helping to keep the
caster straight.
-----Original Message-----
From: news-gateway@lugnet.com [mailto:news-gateway@lugnet.com]On Behalf
Of Juergen Stuber
Sent: Wednesday, August 23, 2000 8:46 AM
To: lego-robotics@crynwr.com
Subject: Re: Casters
"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/
|
|
1 Message in This Thread:
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
Active threads in Robotics
|
|
|
|
|
|
