Subject:
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Re: 8475
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Newsgroups:
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lugnet.technic
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Date:
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Thu, 22 Aug 2002 16:01:29 GMT
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Viewed:
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4241 times
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I'm pretty not happy with the steering centering myself. I can't get mine
to center no matter what I do. Oh well, I only bought the set for the
motors anyway.
-Rob
hmm...New motor...Rail Racer 2003...hmmm
"Jason J Railton" <j.j.railton@ntlworld.com> wrote in message
news:H19256.EI@lugnet.com...
> In lugnet.technic, John Barnes writes:
> > 8475 RC Race Buggy - A quick initial review
> >
> > This is a 27 MHz remote control vehicle set. It isn't called Technic, but • it
> > is primarily composed of Technic parts, some new, at least to me.
> > ...
>
> I just want to add that I've only seen two of these, and they both had a
> minute problem with centering the steering.
>
> A full proportional system has a trim setting on the transmitter, since • the
> signal is constantly sent all the time the transmitter is on. With this
> system, the signal is only sent when you move a control (the clue is that
> the controller has no 'off' switch), and three positions left or right is
> not enough to do accurate trimming over-the-air.
>
> There is a trim control on the steering block itself, but that does very
> little. On it's own, it alters the spring-centered position of the • steering
> (and it's not rack and pinion, it's just a crank lever). However, connect
> it to the steering servo built into the receiver, and the spring-centering
> becomes irrelevant. If the servo doesn't center exactly, the steering • will
> be slightly off regardless of the trim setting.
>
> The problem comes when the servo centers itself. Move the stick to the
> right and release, and it centers perfectly. Move it to the left and
> release, and it can over-compensate and end up slightly over to the right.
> You only notice it though over a long distance.
>
> Having said that, it's only a tiny effect and I'd still recommend the set
> even if they all do it. The extra channel for controlling your own motor • or
> lights is a fantastic touch. Mine has a red/blue flashing bar, two spots
> and a siren!
>
> I presume the whole thing is done by transmitting a single byte of data -
> three bits for left/right, three for forward/back and two for switching • the
> auxilliary 9V supply to +/0/-.
>
> It's just a shame that the only parts in the whole set that have actual • Lego
> studs on them are the 9V connecters...
>
>
> Jason J Railton
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Message has 1 Reply:
 | | 8475 Alternate, and broken motors
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| Rob Hendrix <rob.removebeforesen...msltc.org> wrote in message news:H195wz.CK7@lugnet.com... (...) but (...) My copy is the only other one that Jason had seen, and it had a severe problem with the steering, or at least we initially thought it had. (...) (24 years ago, 31-Aug-02, to lugnet.technic)
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Message is in Reply To:
| | Re: 8475
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| (...) I just want to add that I've only seen two of these, and they both had a minute problem with centering the steering. A full proportional system has a trim setting on the transmitter, since the signal is constantly sent all the time the (...) (24 years ago, 22-Aug-02, to lugnet.technic)
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