Subject:
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Re: Power steering for 8448
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 9 Aug 1999 04:16:00 GMT
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Original-From:
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Eric Miller <[esmille@yahoo.]AvoidSpam[com]>
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Viewed:
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745 times
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I don't have the 8448 or the RCX for that matter but I
may have a partial solution for you. I've found that
steering is a perfect application for the Micro Motor
(part # 5119). The motor is very small but provides a
surprising amount of torque. It can be connected
directly to an axle turning an eight tooth gear on top
of the steering rack. The result is a power steering
system that is very small and easy to install, but
with just enough torque and speed to get the job done.
In addition, if you allow the Micro Motor to run too
long and the steering system reaches its' lock point
the motor will just stall -- it doesn't have enough
power to do any damage to the model.
Eric
--- Karen Gold <kjgpinelake@yahoo.com> wrote:
> Has anyone used a motor to steer the new 8448?
> HOW??
>
> I put the RCX in the trunk as everybody pointed out
> you could do. Then I tore
> off most of the body decorative pieces to make room
> to put in a motor to steer
> the car, so I can use sensors to keep it from
> running into walls. (It goes so
> fast I can't let it go for long!) Last time I tried
> a power steering car it
> worked fairly well, but I had trouble slowing down
> the motor running the rack
> and pinion steering so it didn't tear itself apart,
> so this time I came up with
> an arrangement with a couple of worm gears..... I
> succeeded in slowing it
> down, so much that it's useless. Also late at
> night. Has anybody adapted the
> 8448 to use the RCX to steer it? Please, give me
> details!!
>
> Thanks, Karen (NOT an engineer or programmer, and it
> shows!)
> --
> Did you check the web site first?:
> http://www.crynwr.com/lego-robotics
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Did you check the web site first?: http://www.crynwr.com/lego-robotics
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