Subject: 
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            Re: Dumb AI
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            Newsgroups: 
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            lugnet.robotics
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            Date: 
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            Mon, 7 Feb 2000 22:33:37 GMT
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            Original-From: 
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            Brian B. Alano <alano@kiva.netNOSPAM>
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            Viewed: 
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            2002 times
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      I would have built it, but while waiting my opportunity, I was doubly inspired: I 
combined the  micro-rover concept with Ben's Rock Stupid Rover and came up with: 
The Autonomous Mini-Rover! (Also known as the Rock Stupid Ant). 
 
No scanner, no digital camera. No time to LDraw it. But I did come up with two 
major innovations (for me, anyway): 
 
1) No turntable needed! More precisely, the differential *is* the turntable. I 
meshed the 24 tooth differential gear to an 8 tooth gear, which was fixed to the 
cross-axle hole in a triangular plate. 
 
2) I used a micro-motor axle-pulley for the Rock Stupid program 3. I attached it 
to the inside end of one rear axle and inserted the inside end of the other rear 
axle about 1/4 stud length into it. The result: limited-slip! 
 
Hey, the micro-rover idea was Ben's, too! Wow! Keep up the mind storms, Ben! 
 
Ben Jackson wrote: 
 
> In lugnet.robotics, David Leeper writes: 
> >  
> > As I understand Ben's bot, it's built with a diferential. When the robot 
> > drives normally, the differential turns only the front wheel, moving the bot 
> > forward. When the bot hits something the front wheel will jam, causing the 
> > differential to drive the back wheels, which turns the bot based on how you 
> > design the back wheel drive. 
>  
> Actually the front fork turns to steer the robot when it stalls.  The 
> importance of the back wheels is to cause front wheel stalls WITHOUT hitting 
> something.  A semi-rigid rear axle means that large turns cause stalls, which 
> influences the robot to do more straight driving than spinning in circles. 
>  
> I really recommend that people with a motor and a turntable build it.  It's 
> amazing to watch it move around. 
>  
> --Ben 
 
-- 
______________________ 
You hear, O LORD, the desire of the afflicted; you encourage them, and you listen 
to their cry  --Psalms 10:17 
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        Message has 1 Reply:        |    | Re: Dumb AI
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  |  I made time to provide you with some pictures (took it out of my sleep (...) inspired: I (...) with: (...) the (...) it (...) rear (...)    (26 years ago, 8-Feb-00, to lugnet.robotics)   
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        Message is in Reply To:
            |    | Re: Dumb AI
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  |  (...) Actually the front fork turns to steer the robot when it stalls. The importance of the back wheels is to cause front wheel stalls WITHOUT hitting something. A semi-rigid rear axle means that large turns cause stalls, which influences the robot (...)   (26 years ago, 7-Feb-00, to lugnet.robotics)   
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