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Subject: 
Re: Newbie needs Help
Newsgroups: 
lugnet.robotics
Date: 
Tue, 6 Jun 2006 20:22:02 GMT
Viewed: 
3880 times
  
In lugnet.robotics, Rajinder Dhillon wrote:
Steve Hassenplug wrote:

I guess a little sophistication might help traction.

Steve,

One rotation sensor is allowed. There are also two light sensors,
so your idea is definitely doable.

The situations that are confusing are when the pull of the other
robot prevents your robot from making any headway, as well as when
your robot is actually being pulled back. Are you suggesting that in
these situations it would be better if the wheels are stationary and
locked as opposed to slipping as they keep spinning ? My physics is
is definitely not up to this task - lol.

Raj,

There's a bit of confusion here.  I believe the above quote actually came from
Steve Baker (posting only as Steve).

As Steve Baker pointed out, there is a difference between kinetic (sliding)
friction and static friction. (http://en.wikipedia.org/wiki/Friction)  In the
past, I've spent time trying to identify the best approach for things like this
and LEGO sumo. It's difficult to find people who agree on what's best.

All the physics for this begin to get messy when you start talking about kinetic
friction, so, my suggestion is to do some testing yourself.

In my opinion, you want the wheels to go as fast as they can, without stalling
the motor.  If two robots are pulling each other, I assume all wheels will be
sliding.  That being the case, I'd want mine spinning as fast as possible.

Steve (Hassenplug)



Message has 1 Reply:
  Re: Newbie needs Help
 
(...) Steve Hassenplug, Sorry, my mistake. Thank you for the Wiki link and all your help. Raj. (18 years ago, 7-Jun-06, to lugnet.robotics)

Message is in Reply To:
  Re: Newbie needs Help
 
(...) Steve, One rotation sensor is allowed. There are also two light sensors, so your idea is definitely doable. The situations that are confusing are when the pull of the other robot prevents your robot from making any headway, as well as when (...) (18 years ago, 6-Jun-06, to lugnet.robotics)

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