Subject:
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Re: remember the 1/n rule?
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Thu, 21 Feb 2002 14:46:13 GMT
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Viewed:
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556 times
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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
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Message is in Reply To:
 | | Re: remember the 1/n rule?
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| "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 (...) (23 years ago, 21-Feb-02, to lugnet.org.ca.rtltoronto)
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