Subject:
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Re: More juice out of the standard motors.
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 15 Mar 2001 02:22:45 GMT
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Viewed:
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454 times
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I used to regularly drive LEGO 9V motors at about 12V with no observed
damage. I assume the increased power/torque would be proportional to the
voltage, i.e. 33% more voltage gets you 33% more power/torque.
However, I don't know how to get more than 9V out of the RCX. If you put
12V into the adapter, you still only get 9V out of the motor ports.
--
Mark Haye, mhaye(at)tivoli(dot)com
"Tom Trentham" <Tom@Trentham.com> wrote in message news:GA7IyA.1CC@lugnet.com...
> > I'm trying to make a robot go as fast as possible, but it seems that the
> > power of the engines are stopping me. I own one RIS kit and nothing more.
> > Can I add some more batteries or something?
>
> It could be that I am misinterpreting it, but the original post seemed to
> ask the question "How do you get more power out of the Lego motors?"
>
> It was not about gearing or rotation sensors at all. These things are
> important but the implication of the question was "Can I push some extra
> current through the Lego motor to produce more power/torque on the shaft?"
>
> Unfortunately I can't answer this, but I'm sure there are people who can and
> I think that the following are the questions Magnus really wanted answering
> (and I would be interested to know).
>
> How much voltage can you put across the Lego geared motor ( >9V) before it
> breaks?
>
> How much more power/torque can you gain by putting more voltage through?
>
> Is this a good/sensible idea?
>
> Who has done this? Why? How? etc.
>
> Tom.
>
>
>
>
>
>
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Message has 2 Replies:
 | | Re: More juice out of the standard motors.
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| (...) Have you actually tried this? I've taken both my RCX's (1.0 & 2.0) apart, but, while there is a 5V regulator for the MCU, I couldn't see any regulator for the motor outputs. This doesn't mean it isn't there, just that I couldn't find it if it (...) (23 years ago, 22-Mar-01, to lugnet.robotics)
| | | Re: More juice out of the standard motors.
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| Mark Haye <mhaye(@)tivoli(.)com> wrote in message news:GA9p5z.JwG@lugnet.com... (...) 33% more voltage should also give you 33% more current, so power (i.e. voltage times current) should increase by 77%. But higher currents give higher (...) (23 years ago, 6-Apr-01, to lugnet.robotics)
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Message is in Reply To:
| | Re: More juice out of the standard motors.
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| (...) It could be that I am misinterpreting it, but the original post seemed to ask the question "How do you get more power out of the Lego motors?" It was not about gearing or rotation sensors at all. These things are important but the implication (...) (23 years ago, 14-Mar-01, to lugnet.robotics)
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