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6090  |  6092
Subject: 
Re: 8475 -- a good buy
Newsgroups: 
lugnet.org.ca.rtltoronto
Date: 
Sat, 28 Dec 2002 19:52:30 GMT
Viewed: 
1188 times
  
In lugnet.org.ca.rtltoronto, Calum Tsang writes:
In lugnet.org.ca.rtltoronto, Chris Magno writes:
if you attach a polarity switch like this:

http://members.rogers.com/magno42/3out.jpg

then the "proportional steering" can be made to be a constant out.

There's a problem though.  The mappings are weird.  The second regular 9V
out is mapped to the bottom controller paddles IIRC.  The first regular out
is mapped to the... RH top stick?  And the steering output is LH top stick?

That's doesn't really lend to battlebots if you want AB skip steer.  This
setup lends more to a car with steerable front wheels.  What if you use the
steering output to flip power between A or B side wheels?

hmm.  I'll have to think about this, but I'll bet, with a little work and a
couple polarity switches, you could make an AB skid steer.  I think it would
take some fancy wiring (like the 18v thing) and some precice gearing, but
think about this:  You could connect the drive motor output to a polarity
switch, and connect the polarity switch to the steering (like Chris did) and
the output would go to the motor on one side.  Then, when the drive stick is
pushed forward, the motor goes forward.  Move the 'turn' the stick, and the
motor stops or goes backward.  (same thing for the other side)

That's just the concept.  It CAN work, but it won't be easy.

Calum, we HAVE to have a "battle bots" game.    maybe not a Rx game but
some sort of LIVEx  game.

Christ, is there an echo in here?

from http://news.lugnet.com/org/ca/rtltoronto/?n=5174

Here's something interesting.  Oh, wait, you don't like to do the same thing
as anyone else...

http://news.lugnet.com/events/brickswest/?n=419

As a side note, it's highly likely live2 will use the 8475 RC hardware, as
it seems much more reliable and responsive.  So there's your reason to go
and spend the money now :)

Alright!  Let's do it!  We have at least two 8475 owners: Dave and Chris.
Who else?  Pick a day, pick a place.  Sounds like a pile of pre-rtl13 fun.

damn.  I wish I was closer.

Steve



Message has 1 Reply:
  Canada, a great place to live (was 8475 -- a good buy)
 
(...) 10 hour drive just too much.... You could always come live in Canada. Swear an oath to the Queen, and never worry about medical insurance again. Plus Lego is Cheaper here. rtlToronto, doing our little part to reverse the "brain drain" (URL) (22 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)

Message is in Reply To:
  Re: 8475 -- a good buy
 
(...) There's a problem though. The mappings are weird. The second regular 9V out is mapped to the bottom controller paddles IIRC. The first regular out is mapped to the... RH top stick? And the steering output is LH top stick? That's doesn't really (...) (22 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)

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