Subject:
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Re: SHRIMP power
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 9 Oct 2001 17:29:31 GMT
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Viewed:
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640 times
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I think most R/C car batteries are 9.6 volts? If that is the case, then it
would make an ideal power source. The motor amplifier/booster brick is safe
at this voltage. I wouldn't recommend running the Lego motors much above
this voltage however, since they are only designed for 9 volts.
I believe Digikey sells the required connector (WM2308/09) plus associated
crimp pins. It would be quite straight forward to make a Lego to R/C car
battery converter wire by snipping a Lego wire in half and attaching the
mating end for the battery connector. (I've been using the very short Lego
wires that came with the Znap sets for these kinds of adapter wire things.)
I have been using NiMH AA batteries myself in the Lego battery packs, but
they only struggle up to just over 7 volts which leads to somewhat less than
stella performance.
JB
ps: Thanks, Elijah, for increasing the visibility of ( read: shamelessly
plugging ;) our web site!
In lugnet.robotics, Elijah Meeker <emeeker@austin.rr.com> writes:
> On Mon, 2001-10-08 at 21:59, Brian B. Alano wrote:
> > OK, I (finally) have a SHRIMP platform which doesn't tear itself apart. Now to
> > the problem of power. The problem is that I don't have enough, of course. Have
> > any of the other SHRIMP builders encountered this?
>
> Heh...ayup, six driving motors plus two steering motors takes a lot of
> juice. The solution to all our woes is here:
>
> http://www.hitechnicstuff.com/Motoramp.htm
>
>
> Including the issue of free motor ports. Now, there is still the issue
> of burning through batteries, and thoguh I haven't explored it yet, I am
> hoping that the motor amp will handle a r/c car type battery of the
> correct voltage...I wonder whom I could ask?
>
> Oh yeah, this is not a paid promotional announcement. :o)
>
> Elijah
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Message has 2 Replies:
 | | RE: SHRIMP power
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| (...) Radio Shack also sells a 7.2V RC car battery pack... (...) Q. What is a "stella" performance? A. Marlon Brando in "A Streetcar Named Desire" Cheers, Ralph Hempel ---...--- Check out pbFORTH for LEGO Mindstorms at: (URL) Buy "Extreme (...) (23 years ago, 9-Oct-01, to lugnet.robotics)
| | | Re: SHRIMP power
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| (...) 9.6V are available, but most (in the UK at least, I assume elsewhere as well) are 6 cells, and therefore 7.2V. (...) Anyone in the UK - Maplin does, and so do most R/C model shops. regards, Ian SMith (23 years ago, 10-Oct-01, to lugnet.robotics)
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Message is in Reply To:
| | Re: SHRIMP power
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| (...) Heh...ayup, six driving motors plus two steering motors takes a lot of juice. The solution to all our woes is here: (URL) the issue of free motor ports. Now, there is still the issue of burning through batteries, and thoguh I haven't explored (...) (23 years ago, 9-Oct-01, to lugnet.robotics)
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