Alt-BEAM Archive

Message #10992



To: beam@sgiblab.sgi.com
From: "Timothy Flytch" flytch@hotmail.com
Date: Sun, 27 Feb 2000 21:12:23 PST
Subject: [alt-beam] Re: Re:Diskette Drives


Ok... WARNING STUPID QUESTION...

why not use a stepper motor... If you set one up WITHOUT a driver or gear
box... that is as you apply power to a stepper across one coil it will turn
about 120' ... 1/3 of a turn??? now if you set up the walker with legs
mounted directly on the shaft ... wouldn't you get feedback enough for the
neuron loop??? and yes I do see similarities to using solenoids for the same
function... but still you are generating a increase in field through a
coil... isn't it the same as loading a moving motor???
Timothy...

>Most use a pair of stepper motors, a small 5v for the reader head and a
>larger
>wieghted 5v motor for the main driver. There are plans on the internet,
>somewhere, to turn a floppy drive into a small robot. Remember the motors
>are
>steppers, they need a driver IC to run and draw a fair amount of amps. I
>haven't
>seen any steppers used in BEAM so far--There is no motor feedback loop like
>what
>is created with geared DC motors. However the small motors are great for
>CPU
>robots or other projects.Often the main drive motor is part of the PCB and
>can
>not be removed with out damage to the motor.
>
>Regards,
>Dave
>
>BUDSCOTT@aol.com wrote:
>
> > I was wondering if 3.5 in floppy drives used geared motors, i'm assuming
>they
> > do, but i wanted to be sure before i destroyed something!
> >
> > -Spencer

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10993 Sun, 27 Feb 2000 23:29:36 -0600 [alt-beam] Re: mini walker beam@sgiblab.sgi.com Richard Piotter Hey, Dave H?

Your "major henry" coils... Can they be unwound and then rewound on a
new core without damaging the enamel coating??? How fast do those things
usualy trigger in a Solar Engine like a Magbot? What size solar panel
would you recomend to drive a Bicore and and SE that is time triggered
off the Bicore?

I've got a small project in mind, and would like your input on solar
panel and capacitor recomendations. I have a pair of Chloroplast SE
boards if that would help
--


Richard Piotter The Richfiles Robotics & TI web page:
richfile@rconnect.com http://richfiles.calc.org

-- Make Money by Simply Surfing the Net or responding to E-Mail!!!
-- Click below!!!

http://www.alladvantage.com/go.asp?refid=ATL147
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10994 Sun, 27 Feb 2000 22:22:37 -0800 (PST) [alt-beam] Re: The better RJP beam@sgiblab.sgi.com "Travis D." make it w/ a plexiglass base and you could watch your
bots that roam at night or just lay there on your bed
during the day and watch your lifeforms traverse you
little world...

--- Timothy Flytch wrote:
> I have a solution??? make a shelf using a 1x12
> about 3or 4 feet long with
> a one inch rail around it... maybe over his bed???
> Limited ... yes but could
> work in the smallest of bedrooms...
> Timothy...
> I love small houses, they make you think...
>
> >space left would be his bed so he would have to
> sleep in the bathtub. He
> >didn't think it was as funny as I did.
> >
> >Regards,
> >ave
> >
>
>
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>


10995 Sun, 27 Feb 2000 22:31:24 PST [alt-beam] Re: The better RJP beam@sgiblab.sgi.com "Timothy Flytch" but then your stering up into the lights...

>make it w/ a plexiglass base and you could watch your
>bots that roam at night or just lay there on your bed
>during the day and watch your lifeforms traverse you
>little world...
>
>--- Timothy Flytch wrote:
> > I have a solution??? make a shelf using a 1x12
> > about 3or 4 feet long with
> > a one inch rail around it... maybe over his bed???
> > Limited ... yes but could
> > work in the smallest of bedrooms...
> > Timothy...
> > I love small houses, they make you think...
> >
> > >space left would be his bed so he would have to
> > sleep in the bathtub. He
> > >didn't think it was as funny as I did.
> > >
> > >Regards,
> > >ave

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10996 Mon, 28 Feb 2000 09:08:25 GMT [alt-beam] Re: Hello beam@sgiblab.sgi.com "Blame Canada" Hi
Well actually I'm just starting out.
First I'm gonna build a solar roller then a photopopper


BLAME_CANADA59

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10997 Mon, 28 Feb 2000 09:11:59 GMT [alt-beam] Re: Diskette Drives beam@sgiblab.sgi.com "Blame Canada" They don't, they just use a flattend motor
at least the ones i've seen have but i guess it depends on who built it.

BLAME_CANADA59

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10998 Mon, 28 Feb 2000 09:47:46 GMT [alt-beam] hiya beam@sgiblab.sgi.com "Blame Canada" hello i'm looking for schematics and curcuit diagrams for the I-VORE
could anyone help me here??

BLAME_CANADA59

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10999 Mon, 28 Feb 2000 09:49:34 GMT [alt-beam] Re: Unicore beam@sgiblab.sgi.com "Blame Canada" Try www.beam-online.com I think they have some stuff there

BLAME_CANADA59

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11000 Mon, 28 Feb 2000 10:09:45 GMT [alt-beam] Walkers beam@sgiblab.sgi.com "Blame Canada" There's something that's been bugging me ever since i saw my first
2 motor walker: how do they turn??? all i can see them doing is running into
a wall and flicking a switch
someone help me!

BLAME_CANADA59

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11001 Mon, 28 Feb 2000 10:16:54 GMT [alt-beam] Re: Schematics beam@sgiblab.sgi.com "Blame Canada" i think its that when the arrow points out its a PNP and when the arrow
points in its a NPN like the 3906 and 3904 are npn and pnp
well something along those lines anyway.

BLAME_CANADA59

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11002 Mon, 28 Feb 2000 05:49:52 -0500 [alt-beam] What? Rob Rix > BLAME_CANADA59

Who are you, and why are you replying to your own questions?

And what did Canada ever do?

Peace out!

Rob Rix

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