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Subject: 
Re: The Great Ball Contraption
Newsgroups: 
lugnet.robotics
Date: 
Sat, 8 Jan 2005 19:23:23 GMT
Viewed: 
4322 times
  

Best idea I have seen in a while.
Will be quite a machine when done.

You should try to paint or die a few balls a different
color so spectators can follow a particular ball thruoghout the whole machine.

Actually, we've tried this.

Our first get-together was an all-day event, where we did all sort of messing
around.  In addition to a ton of soccer balls, I've receintly picked up a few
different basket ball sets, including a set that had two blue and two red
basketballs.  So, I have about seven or eight different types.

John used a light sensor to detect balls in his backhoe, and he discovered sometimes
the black spot on the soccer balls ends up in front of the sensor.  So, if his robot
sits for a short time, without seeing any balls, it will "stir" the balls (scoop,
but not pick any up).

I do have video of us tracking a blue ball through the contraption.  It seemed like
it just missed every scoop, lift and everything else.  The ball took about three
minutes to make one "lap".

Steve

   
         
   
Subject: 
Re: The Great Ball Contraption
Newsgroups: 
lugnet.robotics
Date: 
Sat, 8 Jan 2005 19:49:45 GMT
Viewed: 
4515 times
  

Steve Hassenplug wrote:

<snip>

Steve



Steve,

What can you tell me about the Yellow "step feeder" type device in the
"lower left corner" of the GBC ?

A step feeder is a solution to a lego idea I wanted to build.

How complex is it?

Thanks

Chris

   
         
   
Subject: 
Re: The Great Ball Contraption
Newsgroups: 
lugnet.robotics
Date: 
Sun, 9 Jan 2005 01:17:43 GMT
Viewed: 
4512 times
  

What can you tell me about the Yellow "step feeder" type device in the
"lower left corner" of the GBC ?

A step feeder is a solution to a lego idea I wanted to build.

How complex is it?

That module is pretty simple and small.  The whole thing is just 10 studs x 13 studs
(with a power cord coming out)

Here's a picture I just uploaded to brickshelf.  More waiting for moderation.

http://www.brickshelf.com/gallery/Hassenplug/GBC/StepModule/p1080023.jpg

Steve

 

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