To LUGNET HomepageTo LUGNET News HomepageTo LUGNET Guide Homepage
 Help on Searching
 
Post new message to lugnet.org.ca.rtltorontoOpen lugnet.org.ca.rtltoronto in your NNTP NewsreaderTo LUGNET News Traffic PageSign In (Members)
 Organizations / Canada / rtlToronto / 3734
3733  |  3735
Subject: 
Re: remember the 1/n rule?
Newsgroups: 
lugnet.org.ca.rtltoronto
Date: 
Thu, 21 Feb 2002 14:46:13 GMT
Viewed: 
489 times
  
In lugnet.org.ca.rtltoronto, Iain Hendry writes:
"David Koudys" <dkoudys@redeemer.on.ca> wrote in message
news:Gruou3.5v9@lugnet.com...

The *real* engineers do the same job with a minimalistic attitude, for in
the *real* world, controllers cost money, not to mention the extra
sensors/motors!

The less expensive, the better I always say.

Uh, no. :)

In real life (or at least, in any of the automation I've worked with), lead
times and simplicity of design typically take priority over actual machine
function.

IE, sure, it makes more sense to make a custom four position pneumatic
actuator, but the design time alone of something like that outweighs the
cost of slapping on a servo and programming it to move between those four
positions. Yeah, the hardware is more expensive, but the design time is
reduced so it balances out.

PLC modules can typically have anywhere between like 16 and 32 inputs or
outputs per card. The last end of arm tool I did had thirteen inputs and 8
outputs alone! It's so cheap to add another sensor, you just spec it and
bam, it happens.

Controls always tend to trail behind mechanical design and are driven by
that. With LEGO, I find, I'm always driven by control issues to try and
backpedal mechanically, and that's where I get stuck. IE, I have a
mechanically functioning robot. But the (#@*%@(*% limitations on the control
end of things make my robot 100% unprogrammable and unpossible to use,




therefore, I have no robot.


is this figuratively speaking to make your above point, or are you actually
bringing no 'bot to the competition??

no 'bot from Iain would make me a very unhappy camper.


   Iain



Message is in Reply To:
  Re: remember the 1/n rule?
 
"David Koudys" <dkoudys@redeemer.on.ca> wrote in message news:Gruou3.5v9@lugnet.com... (...) Uh, no. :) In real life (or at least, in any of the automation I've worked with), lead times and simplicity of design typically take priority over actual (...) (22 years ago, 21-Feb-02, to lugnet.org.ca.rtltoronto)

18 Messages in This Thread:







Entire Thread on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact
    

Custom Search

©2005 LUGNET. All rights reserved. - hosted by steinbruch.info GbR