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Who knows his electric motors?

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gu...@hotmail.com

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Jan 27, 2012, 7:46:39 AM1/27/12
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Question:

When they wrap (wind) copper coils for an electric motor or solenoid
switch, I believe the coils touch each other (meaning no
insulation)....

....if so then why does the current travel in loops (or mostly in
loops)...instead of the shorter path which is straight across the
other non-insulated copper wire it's touching ????


2012: Guskz

gu...@hotmail.com

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Jan 27, 2012, 7:46:48 AM1/27/12
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gu...@hotmail.com

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Jan 27, 2012, 7:48:28 AM1/27/12
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Don Stockbauer

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Jan 27, 2012, 8:56:02 AM1/27/12
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The wires have to be insulated for the motor to work.

Michael Moroney

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Jan 27, 2012, 12:59:31 PM1/27/12
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The wires in a motor are typically insulated with a thin clear varnish
which may make them look like they are uninsulated, but they are
insulated.

HardySpicer

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Jan 27, 2012, 3:44:43 PM1/27/12
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They are vanished - idiot!

Darwin123

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Jan 27, 2012, 5:08:59 PM1/27/12
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On Jan 27, 7:46 am, "gu...@hotmail.com" <gu...@hotmail.com> wrote:
> Question:
>
> When they wrap (wind) copper coils for an electric motor or solenoid
> switch, I believe the coils touch each other (meaning no
> insulation)....
The wire in the coils always has a thin layer of insulation. The
insulation may be a thin layer of oxide. However, there is always
insulation between the coils.

Alfonso

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Jan 27, 2012, 5:29:07 PM1/27/12
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The wire is insulated. It is traditionally described as enamelled copper
wire. See:

http://uk.farnell.com/pro-power/ecw0-2/wire-copper-enamelled-35swg/dp/1230974

It has a coating of polyurethane


gu...@hotmail.com

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Jan 27, 2012, 5:50:54 PM1/27/12
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On Jan 27, 12:59 pm, moro...@world.std.spaamtrap.com (Michael Moroney)
wrote:
Ahh ... I see, cause I remembered looking at some in the past...and
didn't remember seeing any.

gu...@hotmail.com

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Jan 27, 2012, 5:52:08 PM1/27/12
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> http://uk.farnell.com/pro-power/ecw0-2/wire-copper-enamelled-35swg/dp...
>
> It has a coating of polyurethane

Thanks.

G=EMC^2

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Jan 27, 2012, 7:53:13 PM1/27/12
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I'm not sure that varnish does the insulation?? I think copper
wrapped around a bar of iron with a current going through it would
magnetize it.. After all we are talking about a magnetic "field"
created and given strength by all the loops in a coil.and strength of
current The flow of electrons go through the iron bar. .I have never
read the wire has to be insulated. But will build an electrmagnet with
and without insulation. Only need a battery,wire and nail TreBert

be...@iwaynet.net

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Jan 28, 2012, 2:52:15 AM1/28/12
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On 1/27/2012 7:53 PM, G=EMC^2 wrote:

> I'm not sure that varnish does the insulation?? I think copper
> wrapped around a bar of iron with a current going through it would
> magnetize it.. After all we are talking about a magnetic "field"
> created and given strength by all the loops in a coil.and strength of
> current The flow of electrons go through the iron bar. .I have never
> read the wire has to be insulated. But will build an electrmagnet with
> and without insulation. Only need a battery,wire and nail TreBert

You'll never get those two Nobel prizes this way Trebert. I really don't
understand your drive to make a total ignorant fool of yourself in a
world-wide public forum. Instead of two Nobel prizes, why not go for a
triple crown? The THREE STOOGES prize. You can win that one ALL BY
YOURSELF! Nyuck, Nyuck!

gaby de wilde

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Jan 28, 2012, 2:54:15 AM1/28/12
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Say a current is flowing though a wire.

We "look" down the wire in the same direction as the current.

From this angle the magnetic field swirls clockwise around the wire.

When we put another wire (or the same one) close to the first the
field will swirl around both wires.

If we keep adding more loops the combined magnetic field increases.

http://www.rfcafe.com/references/electrical/images/magnetic_field_coil.jpg

be...@iwaynet.net

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Jan 28, 2012, 3:12:24 AM1/28/12
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I can't believe the total and utter ignorance expressed in this thread
by this group of morons who pretend to have some understanding of
physics. ABSOLUTELY NONE of the speculations (including this one,
HardySpicer, get a spell-checker)is totally correct and most are on a
level with a flat earth and bleeding people to "cure" them.

Dear idiot morons. Just do a search on "Formvar". Note that: "Formvar is
a synthetic film insulation containing polyvinyl acetal and phenolic
resins." Today people have "cheaped out" using polyurethane insulation
but it isn't as strong as the older and typical formvar.

And No, copper oxide is NEVER used as an insulator. In fact, it's a
conductor though certainly not as good as varnish or aluminum oxide. And
yes, the conductors in motors and solenoids do need to be insulated! Do
you all see what fools you all now appear to be? Often in transformers
or solenoids there is also additional insulation such as paper or
varnished-soaked paper placed between layers of the coils.

Are you people REALLY this ignorant of the most fundamental details of
the most basic 20th century technology? Second Dark Ages HERE WE COME!
Say, How are you guys at hitching up an OX team? Have any idea how a
"wheel" works?

And you cross-posted this nonsense to sci.physics.relativity? OK, who
here thinks he's "smarter than Einstein"?

G=EMC^2

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Jan 28, 2012, 1:32:01 PM1/28/12
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Right you are I have 3 Nobel Theories. #1 Lapse Time "#2 Spin is In"
#3 Structure of electron I know how to create fusion that is
controlable. Take pictures faster than a strobe.(shown at MIT) In a
very quite way I am famous. I get email from universities in over 20
countries. They love me in Russia,Australia,Canada etc. I'm very
clever and my posts over 19 years prove it. I know how everything
works and how they can work better. Not bragging just the facts.
TreBert

Chris Richardson

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Jan 28, 2012, 2:17:53 PM1/28/12
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On Sat, 28 Jan 2012 03:12:24 -0500, BJA...@teranews.com wrote:

>
> Are you people REALLY this ignorant of the most fundamental details of
> the most basic 20th century technology? Second Dark Ages HERE WE COME!
>

The educational system is partly to blame. All practical concerns
are eliminated from the idealized discussions that occur within
the classroom. As a result, even a physics major will be hard-pressed
to construct a reliable electric circuit, and especially a high
frequency circuit.

Some further relevant questions:

Are all off-the-shelf resistors suitable for high frequency
designs?

Heck no! Putting a wire-wound resistor, which are common and cheap,
into a HF circuit will result in unpredictable behavior due to the
large intrinsic inductance. The same applies to metal film resistors.

Does the DC behavior of copper wire extend into HF?

Heck no! The resistance of copper wire can increase significantly
in HF circuits due to the skin effect. In these cases, specially
designed Litz wire is often used to reduce both the skin effect and
the proximity effect.

gu...@hotmail.com

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Jan 28, 2012, 11:43:31 PM1/28/12
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On Jan 28, 2:17 pm, Chris Richardson <r...@localhost.localdomain>
wrote:
Speaking of resistors, they are known as a load, and have no purpose
but to reduce the voltage or current and yet can consume a lot of
energy
in the process....

...example: If I was to place only resistors to a power supply and
nothing
else, this would consume a lot of energy and provide nothing that can
be useful.

(meaning not a motor, not a speaker, not a light, etc.... which should
logically
be the only things to consume power:??)

be...@iwaynet.net

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Jan 29, 2012, 1:40:54 AM1/29/12
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You aren't "bragging" Treebert? You are showing that you are a total
ignoramus. Didn't anyone in those 19 years of posting and communications
from "Russia, Australia, and Canaduh" bother to explain to you how an
electromagnet works? I knew that in grade school. If these are the
"facts" then I'm amazed that there is ANYONE, aborigine or otherwise in
those countries who cannot easily see you haven't a clue. Maybe if you
posted some of the praise you've received from intellectual giants like
"Kevin" and "Archimedes Plutionium" We might me more inclined to applaud
your brain-power.

So now it's up to THREE Nobel prizes, is it? Better get some plain bare
copper wire and a nail and see if you can make a magnet. (unfortunately
I believe the Nobel prize for that has already gone to someone else)

Oh wait! I see you ARE going for the Three Stooges Prize! Nyuck, Nyuck!

PS. not only do I know how to create [nuclear] fusion that is
controllable (note spelling)I actually worked on the project that did
it! I leave it to you to guess what that was. Not bragging, just the
facts.

You may be a total idiot, but always entertaining. We thank you for
that. Laughing at the mentally deficient is a long neglected sport.

be...@iwaynet.net

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Jan 29, 2012, 1:52:05 AM1/29/12
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On 1/28/2012 11:43 PM, gu...@hotmail.com wrote:
> On Jan 28, 2:17 pm, Chris Richardson<r...@localhost.localdomain>
> wrote:
>> On Sat, 28 Jan 2012 03:12:24 -0500, BJAC...@teranews.com wrote:
>>
>>> Are you people REALLY this ignorant of the most fundamental details of
>>> the most basic 20th century technology? Second Dark Ages HERE WE COME!
>>
>> The educational system is partly to blame. All practical concerns
>> are eliminated from the idealized discussions that occur within
>> the classroom. As a result, even a physics major will be hard-pressed
>> to construct a reliable electric circuit, and especially a high
>> frequency circuit.

> ...example: If I was to place only resistors to a power supply and
> nothing
> else, this would consume a lot of energy and provide nothing that can
> be useful.
>
> (meaning not a motor, not a speaker, not a light, etc.... which should
> logically
> be the only things to consume power:??)

Quite obviously guskz is a product of the "modern" educational system.

Dear. Guskz. Go to your kitchen. Look around for electric appliances.
Start with the toaster. So you never heard of an "electric heater"
before? Well, it's WAY past time you did. Or is toast not "logical"?


G=EMC^2

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Jan 29, 2012, 10:45:35 AM1/29/12
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This is not a spelling bee. I know a current flowing through a wire
produces a magnetic field. A straight wire is not very strong,so it is
wound into a coil.Thus its field is "concentrated" Place an iron bar
in the middle of this field,and you have an electromagnet Please
spell TreBert right,and try not to be a low life hateful person.
TreBert

Paul Cardinale

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Jan 29, 2012, 10:51:02 AM1/29/12
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On Jan 28, 10:32 am, "G=EMC^2" <herbertglazi...@gmail.com> wrote:

>
> Right you are I have 3 Nobel Theories. #1 Lapse Time  "#2 Spin is In"
> #3 Structure of electron  I know how to create fusion that is
> controlable. Take pictures faster than a strobe.(shown at MIT)  In a
> very quite way I am famous. I get email from universities in over 20
> countries. They love me in Russia,Australia,Canada etc.  I'm very
> clever and my posts over 19 years prove it. I know how everything
> works and how they can work better. Not bragging just the facts.
> TreBert

Your posts repeatedly prove that both your knowledge and intellect are
well below average.
It is the combination of your arrogance and stupidity that prevents
you from recognizing your limitations.

Chris Richardson

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Jan 29, 2012, 1:16:32 PM1/29/12
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On Sat, 28 Jan 2012 20:43:31 -0800, gu...@hotmail.com wrote:

>
> Speaking of resistors, they are known as a load, and have no purpose
> but to reduce the voltage or current and yet can consume a lot of
> energy
> in the process....
>

Everything -- and I mean every material entity that can be
incorporated into a circuit -- has a property known as
impedance (Z):

Z = R + i*X

In this equation, R is the ordinary idea of resistance (which
is more fundamentally called the conductance) and X is a quantity
known as the reactance, with i being the imaginary unit.

Every circuit component has an impedance value although in most
cases either the resistance or the reactance component is
totally ignored.

But in high frequency applications the true Z behavior begins
to emerge all over and manifests in areas that are completely
unexpected.

Raymond Yohros

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Jan 29, 2012, 5:40:29 PM1/29/12
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On Jan 29, 10:51 am, Paul Cardinale <pcardin...@volcanomail.com>
wrote:
and someone who really wants to learn doesn't go around talking
about stuff he doesn't know. just with Wikipedia itself you can learn
Tons of things without saying a word.


G=EMC^2

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Jan 31, 2012, 7:11:05 PM1/31/12
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On Jan 27, 12:59 pm, moro...@world.std.spaamtrap.com (Michael Moroney)
wrote:
Copper oxidizes very fast. Are you sure the varnish is not used to
stop this. Best to keep in mind the magnetic field is outside the wire
and are lines of force going in circles. (loops) Here is a thought
Current from battery goes from negative to positive battery pole
However the poles of the electromagnet are at "either end of the
coil" Do you see the difference a coil makes

Jerry

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Jan 31, 2012, 7:22:06 PM1/31/12
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On Jan 31, 6:11 pm, "G=EMC^2" <herbertglazi...@gmail.com> wrote:
> On Jan 27, 12:59 pm, moro...@world.std.spaamtrap.com (Michael Moroney)
> wrote:

> > The wires in a motor are typically insulated with a thin clear varnish
> > which may make them look like they are uninsulated, but they are
> > insulated.
>
> Copper oxidizes very fast. Are you sure the varnish is not used to
> stop this.

The oxide coat is not a reliable insulator.

The voltage difference between adjacent coils may be on the order
of microvolts, and between layers may be on the order of
millivolts. You do not need anything more than a thin layer of
varnish to provide adequate insulation, but it -does- need to be
better than the result of spontaneous tarnishing.

Jerry

Darwin123

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Feb 5, 2012, 2:17:32 PM2/5/12
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On Jan 31, 7:11 pm, "G=EMC^2" <herbertglazi...@gmail.com> wrote:
> On Jan 27, 12:59 pm, moro...@world.std.spaamtrap.com (Michael Moroney)
> wrote:
>
>
>
>
>
>
>
>
>
> > Don Stockbauer <donstockba...@hotmail.com> writes:
> > >On Jan 27, 6:48 am, "gu...@hotmail.com" <gu...@hotmail.com> wrote:
> > >> Question:
>
> > >> When they wrap (wind) copper coils for an electric motor or solenoid
> > >> switch, I believe the coils touch each other (meaning no
> > >> insulation)....
>
> > >> ....if so then why does the current travel in loops (or mostly in
> > >> loops)...instead of the shorter path which is straight across the
> > >> other non-insulated copper wire it's touching  ????
>
> > >> 2012: Guskz
> > >The wires have to be insulated for the motor to work.
>
> > The wires in a motor are typically insulated with a thin clear varnish
> > which may make them look like they are uninsulated, but they are
> > insulated.
>
> Copper oxidizes very fast.
Electric current also speeds up oxidation unless the metal is
insulated. It the copper wires weren't insulated, the copper would
completely oxidize really fast.
The wires are insulated by varnish. That directs the current
through the wires and protects them from oxidation.

Darwin123

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Feb 5, 2012, 2:30:54 PM2/5/12
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On Jan 28, 3:12 am, "BJAC...@teranews.com" <b...@iwaynet.net> wrote:
> On 1/27/2012 3:44 PM, HardySpicer wrote:
>
> > On Jan 28, 1:48 am, "gu...@hotmail.com"<gu...@hotmail.com>  wrote:
> >> Question:
>
> >> When they wrap (wind) copper coils for an electric motor or solenoid
> >> switch, I believe the coils touch each other (meaning no
> >> insulation)....
>
> >> ....if so then why does the current travel in loops (or mostly in
> >> loops)...instead of the shorter path which is straight across the
> >> other non-insulated copper wire it's touching  ????
>
> >> 2012: Guskz
>
> > They are vanished - idiot!
>
> I can't believe the total and utter ignorance expressed in this thread
> by this group of morons who pretend to have some understanding of
> physics.  ABSOLUTELY NONE of the speculations (including this one,
> HardySpicer, get a spell-checker)is totally correct and most are on a
> level with a flat earth and bleeding people to "cure" them.
>
> Dear idiot morons.
Duhh...I can't think of anything to say to that!
>Just do a search on "Formvar".
Thank you. I didn't know what to search on.
> Note that: "Formvar is
> a synthetic film insulation containing polyvinyl acetal and phenolic
> resins." Today people have "cheaped out" using polyurethane insulation
> but it isn't as strong as the older and typical formvar.
I didn't know that. This is all very interesting.
>
> And No, copper oxide is NEVER used as an insulator.
Thank you. I didn't know that. I didn't know that copper oxide was
a conductor. Well, not exactly.
Copper oxide is actually a large gap semiconductor. It has a band
gap of 2 eV. It only conducts if you add p-type impurities. The
material neutralizes n-type impurities. The n-type impurities
chemically transform into deep levels. Therefore, if you add n-type
impurities then copper oxide DOES become an insulator. So it is
possible to use copper oxide as an insulator. Obviously, not in this
case.
I happened to know all about copper oxide without knowing the
polymers used for insulation of a copper wire. My education is
uneven.
Next mind I make a mistake, please correct my mistake. Please
don't try to try to correct evolution.
Evolution made me what I am. Evolution is never perfect.
Therefore, I can't help it !-)

gu...@hotmail.com

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Feb 5, 2012, 11:44:39 PM2/5/12
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Things develop with Time which we call Evolution and in computer terms
"artificial intelligence".

be...@iwaynet.net

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Feb 7, 2012, 4:36:59 AM2/7/12
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Then you should be aware that as a semiconductor copper oxide is used
for a variety of things (most of them in the past) such as rectifiers
and photocells because of it's semiconductor nature.

> Next mind I make a mistake, please correct my mistake. Please
> don't try to try to correct evolution.
> Evolution made me what I am. Evolution is never perfect.
> Therefore, I can't help it !-)

Hey, I don't try to "correct" a person's religion, unless they go too
far in their beliefs (such as portraying Evolution as "fact"). You have
no idea what you do not know about that subject.

Notice that the problem was not that you were wrong, but rather that you
(and others) were pretending you knew it all!




G=EMC^2

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Feb 7, 2012, 2:11:08 PM2/7/12
to
Reality is this The rotor is made of coils and its surface is clean
metal. So goes for the stator also a coil. Bushes made only of pure
carbon. Gates got rich on stepper motor to spin his floppy disk.
Stepper motor I like. Electric watch I like. Maglev trains. Imperial
electric motors are big today and will be bigger in the future. DC
for cars and homes of the future TreBert

be...@iwaynet.net

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Feb 7, 2012, 5:41:24 PM2/7/12
to
And speaking of pretending to know it all: Hi Treebert! Got any emails
from Russia lately? I'm sure maglev trains is an idea you'd love. Sure
use that energy to lift the train off the ground! And while you are at
it how about we burn food to run it?

Stepper motors are not DC nor did Gates sell floppy drives. Still an idiot.

Androcles

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Feb 7, 2012, 5:54:46 PM2/7/12
to

"BJA...@teranews.com" <be...@iwaynet.net> wrote in message
news:bMhYq.11517$JN6...@newsfe13.iad...
Really? You do know they stay stopped when commanded to do so,
even if you try to turn them?


| nor did Gates sell floppy drives. Still an idiot.

You certainly are. Jokaby knows nothing about stepper motors.


G=EMC^2

unread,
Feb 7, 2012, 7:46:33 PM2/7/12
to
On Feb 7, 5:54 pm, "Androcles" <H...@Hgwrts.phscs.Feb.2012> wrote:
> "BJAC...@teranews.com" <b...@iwaynet.net> wrote in message
> You certainly are. Jokaby knows nothintop tweisdtingh what I posdt

G=EMC^2

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Feb 7, 2012, 7:55:48 PM2/7/12
to
On Feb 7, 5:54 pm, "Androcles" <H...@Hgwrts.phscs.Feb.2012> wrote:
> "BJAC...@teranews.com" <b...@iwaynet.net> wrote in message
Where did I say Stepper Motors come only in DC. I said they run Gates
floppy disk. I know how every thing works and that goes for Stepper
motors. Lots of universities like my ideas. you find fault with me to
try to show how smart you are (Ego showing) Its the same low wit
idiots that say "Einstein is wrong" You are a low wit idiot of
Humankind. Sad but true TtreBert

micro...@hotmail.com

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Feb 7, 2012, 8:35:57 PM2/7/12
to
> Humankind. Sad but true   TtreBert- Hide quoted text -
>
> - Show quoted text -

Magnetic electricty is only from coiled wire...
Please show electricty creating magnetism from a straight wire...

Mitchell Raemsch

waldofj

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Feb 7, 2012, 10:46:30 PM2/7/12
to
> Magnetic electricty is only from coiled wire...
> Please show electricty creating magnetism from a straight wire...
>
> Mitchell Raemsch

An episode of the mechanical universe

http://www.learner.org/vod/vod_window.html?pid=596

at 7:20 into the video it shows the magnetism of a straight wire.

Michael Moroney

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Feb 7, 2012, 10:57:20 PM2/7/12
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"micro...@hotmail.com" <micro...@hotmail.com> writes:

>Magnetic electricty is only from coiled wire...
>Please show electricty creating magnetism from a straight wire...

Already done for you, but look again:

http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magcur.html

It also goes through the math and shows how coiling the wire greatly
enhances the magnetic field.

be...@iwaynet.net

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Feb 8, 2012, 1:07:39 AM2/8/12
to
On 2/7/2012 5:54 PM, Androcles wrote:

> Really? You do know they stay stopped when commanded to do so,
> even if you try to turn them?

And do you know "motors" that don't turn are not called motors?
If it's a "motor" sooner or later it has to turn. And just what kind of
DC does one apply to a stepper motor to make it spin?

This is too easy! It's like shooting fish in a barrel.

> | nor did Gates sell floppy drives. Still an idiot.
>
> You certainly are. Jokaby knows nothing about stepper motors.

So Microsoft made a fortune selling floppy drives? Is that your
intellectual pronouncement for the day?

Still an idiot.

be...@iwaynet.net

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Feb 8, 2012, 1:23:26 AM2/8/12
to
Ok, how exactly does a stepper motor run a "Gates floppy disk"? For that
matter just what IS a "Gates floppy disk"?

>> - Show quoted text -
>
> Magnetic electricty is only from coiled wire...
> Please show electricty creating magnetism from a straight wire...
>
> Mitchell Raemsch

HERE WE GO! It's the Triple Crown! Three morons all in one thread!
TreeBert, Raemsch, and Andro all in one place. Where is a USENET suicide
bomber when you need one?

Three Nobel Raemsch really gets the prize this time, though, with his
"magnetic electricty" only from coiled wire. How can ANY of you know so
little and yet think you know it all? It boggles the mind.

Oh, Wait! I get it! You are just pulling our leg. Just pretending to be
dense as a joke. Ha HA! quite funny!

Androcles

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Feb 8, 2012, 5:27:21 AM2/8/12
to

"BJA...@teranews.com" <be...@iwaynet.net> wrote in message
news:yioYq.20715$Sh7....@newsfe15.iad...
| On 2/7/2012 5:54 PM, Androcles wrote:
|
| > Really? You do know they stay stopped when commanded to do so,
| > even if you try to turn them?
|
| And do you know "motors" that don't turn are not called motors?

Stepper motors have four states: turn clockwise, turn counterclockwise,
stop and off. Stop is DC.




| If it's a "motor" sooner or later it has to turn. And just what kind of
| DC does one apply to a stepper motor to make it spin?

Pulsed DC, of course.


|
| This is too easy! It's like shooting fish in a barrel.
|

Yep. Carry on opening and closing your mouth, you'll get
DC water through your gills. Not many Jokabies swim
backwards.

| > | nor did Gates sell floppy drives. Still an idiot.
| >
| > You certainly are. Jokaby knows nothing about stepper motors.
|
| So Microsoft made a fortune selling floppy drives?

I wouldn't know about that, to the best of my knowledge Microsoft
only produce software.

| Is that your
| intellectual pronouncement for the day?

Pronouncing the idiot Jockaby knows nothing about stepper motors
doesn't require intellect.

|
| Still an idiot.
You sure are.





gaby de wilde

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Feb 8, 2012, 8:40:24 AM2/8/12
to
On Feb 8, 7:07 am, "BJAC...@teranews.com" <b...@iwaynet.net> wrote:
> On 2/7/2012 5:54 PM, Androcles wrote:
>
> > Really? You do know they stay stopped when commanded to do so,
> > even if you try to turn them?
>
> And do you know "motors" that don't turn are not called motors?

It are called linear motors.

G=EMC^2

unread,
Feb 8, 2012, 10:25:54 AM2/8/12
to
Motors that can run on both AC or DC are called "imperial motors"
TreBert

G=EMC^2

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Feb 8, 2012, 10:23:13 AM2/8/12
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On Feb 8, 1:23 am, "BJAC...@teranews.com" <b...@iwaynet.net> wrote:
M R you are a witless wonder. Current going through straight wire
creates a magnetic field around it. To be made stronger it is
coiled..This concentrates the field,and put an iron bar in the middle
and you have a powerful electrical magnet. Floppy disc stores data.
It uses about 150,000 words (about the length of a novel.) Stores a
million or so "bytes" Stepper motor does not spin constantly. It
obeys a control signal to rotate by the exact amount. As I type this
to you all I am using the Read-Write Head.This contains a tiny
electromagnet to produce magnet signal. TreBert

be...@iwaynet.net

unread,
Feb 8, 2012, 5:53:43 PM2/8/12
to
I know nobody will believe me, but I was waiting for that one! I wanted
to see if Andro would come up with it. And now you went and spoiled
everything!



be...@iwaynet.net

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Feb 8, 2012, 6:04:01 PM2/8/12
to
On 2/8/2012 10:23 AM, G=EMC^2 wrote:

> M R you are a witless wonder. Current going through straight wire
> creates a magnetic field around it. To be made stronger it is
> coiled..This concentrates the field,and put an iron bar in the middle
> and you have a powerful electrical magnet. Floppy disc stores data.
> It uses about 150,000 words (about the length of a novel.) Stores a
> million or so "bytes" Stepper motor does not spin constantly. It
> obeys a control signal to rotate by the exact amount. As I type this
> to you all I am using the Read-Write Head.This contains a tiny
> electromagnet to produce magnet signal. TreBert

TreeBert, please. If you are going to try to show everyone how smart you
are, you really should learn some actual facts first. Yes, correcting
Three Prize Raemsch is good. But you really need to learn some computer
history. What were you? Born yesterday? Floppy drives come (came) in a
variety of disk sizes with a variety of storage capacities. The floppy
disks do not spin constantly but only when accessed, it's true, but they
are not turned by a stepper motor. The stepper motor in a floppy disk
device is used to move the read/write heads to different positions
(tracks). And that disk you are using right now to type this IS spinning
constantly! (and does NOT use a stepper motor to position the heads). Do
I have to teach you EVERYTHING?


be...@iwaynet.net

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Feb 8, 2012, 6:27:17 PM2/8/12
to
On 2/8/2012 10:25 AM, G=EMC^2 wrote:
> On Feb 8, 8:40 am, gaby de wilde<gdewi...@gmail.com> wrote:
>> On Feb 8, 7:07 am, "BJAC...@teranews.com"<b...@iwaynet.net> wrote:

>>>> Really? You do know they stay stopped when commanded to do so,
>>>> even if you try to turn them?

>>> And do you know "motors" that don't turn are not called motors?

> Motors that can run on both AC or DC are called "imperial motors"
> TreBert

No they aren't, TreeBert. Maybe in the Yoo Kay where people still dream
of empire before they put their heads up their own bums. Motors that run
on both AC or DC are only called "Imperial motors" when they have been
made by the Imperial Electric co. Otherwise they are called AC-DC
motors or "universal motors" or "Universal AC-DC motors". You are just
ready to enlighten the world, aren't you?




G=EMC^2

unread,
Feb 8, 2012, 6:33:19 PM2/8/12
to
When your 84(birthday 2/9) You are to old to worry about floppy disks.
Still I did not post dribble.I'm self taught and a creative thinker. I
know how every thing works. I have insights in the QM realm.Go figure
TreBert You can wish me a "Happy Birthday. 2/9/28

be...@iwaynet.net

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Feb 8, 2012, 11:22:56 PM2/8/12
to
You are 84? Well congratulations (tomorrow!). I don't "worry" about
floppy disks. Which is not the same thing as not knowing how they work.
You say you "know how everything works", and then proceed to prove you
are lying in a world-wide public forum. Embarrassing. You did post
drivel [DRIVEL, TreeBert, the word is Drivel!]. Floppy disks do (did)
NOT turn by stepper motors! They come (came) in a variety of sizes.
Didn't I already explain that to you? Didn't you go check out my
statements to see if they are true? How else can a "self-taught" person
learn anything new?

Nothing wrong with self-taught. Nothing wrong with creative thinking.
World needs more of both! It's great you have QM insights (if ever a
subject needed it, THAT is IT!)

But to say you know how everything works and then immediately prove you
don't is not inspiring our confidence in your "creativity". You see,
imagination is great, but reality has no law which makes it conform to
your imagination. That's why we call it science instead of literature.





Androcles

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Feb 9, 2012, 3:41:46 AM2/9/12
to

"BJA...@teranews.com" <be...@iwaynet.net> wrote in message
news:jSHYq.13190$Ep3....@newsfe08.iad...
| On 2/8/2012 6:33 PM, G=EMC^2 wrote:
| > On Feb 8, 6:04 pm, "BJAC...@teranews.com"<b...@iwaynet.net> wrote:
| >> On 2/8/2012 10:23 AM, G=EMC^2 wrote:
|
| > When your 84(birthday 2/9) You are to old to worry about floppy disks.
| > Still I did not post dribble.I'm self taught and a creative thinker. I
| > know how every thing works. I have insights in the QM realm.Go figure
| > TreBert You can wish me a "Happy Birthday. 2/9/28
|
| You are 84? Well congratulations (tomorrow!). I don't "worry" about
| floppy disks. Which is not the same thing as not knowing how they work.
| You say you "know how everything works", and then proceed to prove you
| are lying in a world-wide public forum. Embarrassing. You did post
| drivel [DRIVEL, TreeBert, the word is Drivel!]. Floppy disks do (did)
| NOT turn by stepper motors!

Bwahahahahahaha!
What do you hallucinate positions the read/write head, Jokaby?









G=EMC^2

unread,
Feb 9, 2012, 9:39:45 AM2/9/12
to
On Feb 9, 3:41 am, "Androcles" <H...@Hgwrts.phscs.Feb.2012> wrote:
> "BJAC...@teranews.com" <b...@iwaynet.net> wrote in message
Well the floppy disk is turned by a "disk motor" with a belt
connecting both. Thus my laptop must also have a "stepper motor"
Stepper motor is flat.Lots of coils,and lots of poles. I like stepper
motors I wonder if they make stepper generators? TreBert

Greegor

unread,
Feb 10, 2012, 1:51:45 AM2/10/12
to
Did you ever ask guskz if he's young or has Aspergers, Darwin?

I don't think YOU know the difference, herr professor.

be...@iwaynet.net

unread,
Feb 10, 2012, 6:00:59 PM2/10/12
to
On 2/9/2012 9:39 AM, G=EMC^2 wrote:
> On Feb 9, 3:41 am, "Androcles"<H...@Hgwrts.phscs.Feb.2012> wrote:
>> "BJAC...@teranews.com"<b...@iwaynet.net> wrote in message

>> Bwahahahahahaha!
>> What do you hallucinate positions the read/write head, Jokaby?

Andro laughs manically over his own joke he thinks he made. So tell us
Andro, the Smart, just how does the head positioner ROTATE the disk? If
you'd take some remedial Grade schooling, you'd have noticed that I said
"Floppy disks do (did) NOT turn by stepper motors!" I DID NOT say,
"Floppy disk drives do not USE stepper motors". That Limey edukayshun
just ain't what it used to be, is it?


> Well the floppy disk is turned by a "disk motor" with a belt
> connecting both. Thus my laptop must also have a "stepper motor"
> Stepper motor is flat.Lots of coils,and lots of poles. I like stepper
> motors I wonder if they make stepper generators? TreBert

Treebert, you are confusing a stepper motor with a "pancake" motor. A
stepper motor is like a synchronous motor only driven by pulsed current.
Since stepper motors are usually made with permanent magnets they are
automatically "stepper generators" which is to say encoders. I thought
you knew how "everything" works?

Androcles

unread,
Feb 10, 2012, 6:56:51 PM2/10/12
to

"BJA...@teranews.com" <be...@iwaynet.net> wrote in message
news:ukhZq.10530$j%3.2...@newsfe04.iad...
| On 2/9/2012 9:39 AM, G=EMC^2 wrote:
| > On Feb 9, 3:41 am, "Androcles"<H...@Hgwrts.phscs.Feb.2012> wrote:
| >> "BJAC...@teranews.com"<b...@iwaynet.net> wrote in message
|
| >> Bwahahahahahaha!
| >> What do you hallucinate positions the read/write head, Jokaby?
|
| Andro laughs manically over his own joke he thinks he made. So tell us
| Andro, the Smart, just how does the head positioner ROTATE the disk?

It doesn't, Jokaby the Dumbfuck, another stepper motor does the rotating.
See, to find a file on a disc you need its x-position and its y-position, or
if you prefer, its track and sector.
http://en.wikipedia.org/wiki/Disk_sector


| If
| you'd take some remedial Grade schooling, you'd have noticed that I said
| "Floppy disks do (did) NOT turn by stepper motors!"

Yes, you did say that and it IS what I noticed. It is hilarious even without
my grade school education.



Darwin123

unread,
Feb 10, 2012, 7:12:37 PM2/10/12
to
On Feb 10, 1:51 am, Greegor <greego...@gmail.com> wrote:
> Did you ever ask guskz if he's young or has Aspergers, Darwin?
>
> I don't think YOU know the difference, herr professor.

No I don't. I never claimed to tell the difference.
You claimed to have some type of expertise above and beyond the
people who coined the word. You are projecting your neuroses on
others.
I have not presented a psychiatric review. I merely pointed out
inconsistencies in your hypotheses.

Michael Moroney

unread,
Feb 10, 2012, 11:29:44 PM2/10/12
to
"Androcles" <H...@Hgwrts.phscs.Feb.2012> writes:

>"BJA...@teranews.com" <be...@iwaynet.net> wrote in message
>news:ukhZq.10530$j%3.2...@newsfe04.iad...
>| Andro laughs manically over his own joke he thinks he made. So tell us
>| Andro, the Smart, just how does the head positioner ROTATE the disk?

>It doesn't, Jokaby the Dumbfuck, another stepper motor does the rotating.
>See, to find a file on a disc you need its x-position and its y-position, or
>if you prefer, its track and sector.
> http://en.wikipedia.org/wiki/Disk_sector

Floppy disks have a hole in them that told the drive when the tracks
were to start, by shining a light through it.

be...@iwaynet.net

unread,
Feb 11, 2012, 12:41:23 AM2/11/12
to
On 2/10/2012 6:56 PM, Androcles wrote:
> "BJA...@teranews.com"<be...@iwaynet.net> wrote in message
> news:ukhZq.10530$j%3.2...@newsfe04.iad...
> | On 2/9/2012 9:39 AM, G=EMC^2 wrote:
> |> On Feb 9, 3:41 am, "Androcles"<H...@Hgwrts.phscs.Feb.2012> wrote:
> |>> "BJAC...@teranews.com"<b...@iwaynet.net> wrote in message
> |
> |>> Bwahahahahahaha!
> |>> What do you hallucinate positions the read/write head, Jokaby?
> |
> | Andro laughs manically over his own joke he thinks he made. So tell us
> | Andro, the Smart, just how does the head positioner ROTATE the disk?
>
> It doesn't, Jokaby the Dumbfuck, another stepper motor does the rotating.
> See, to find a file on a disc you need its x-position and its y-position, or
> if you prefer, its track and sector.
> http://en.wikipedia.org/wiki/Disk_sector

You sure take the dumbass prize, Andro, even away from TreeBert. And
both of you just wallow in your ignorance as if it were a perfumed bath!
Sectors are NOT, repeat NOT, accessed by stepper motor (or ANY)
positioning. You are so ignorant, you have no idea how even tape
recorders work! And yet you think you know it all, even after you make a
total fool of yourself in a world-wide public forum OVER and OVER and
OVER and OVER. and think that by calling everyone else a "dumbfuck" it
will somehow make you look intelligent. It doesn't.

Thanks for the laughs.

> | If
> | you'd take some remedial Grade schooling, you'd have noticed that I said
> | "Floppy disks do (did) NOT turn by stepper motors!"
>
> Yes, you did say that and it IS what I noticed. It is hilarious even without
> my grade school education.

Are you saying that they do, (did) turn by stepper motors? Are you
really trying to say that? Now THAT is hilarious!


be...@iwaynet.net

unread,
Feb 11, 2012, 12:47:07 AM2/11/12
to
Now don't go messing with that thing Andro embarrassingly tries to pass
off as a brain, by giving him facts. His head might explode.

Androcles

unread,
Feb 11, 2012, 4:15:12 AM2/11/12
to

"BJA...@teranews.com" <be...@iwaynet.net> wrote in message
news:ObnZq.2843$L6....@newsfe01.iad...
And printers don't scroll the paper with stepper motors and move the
carriage with stepper motors either, right, you fucking clown?
BTW, punch cards went out of fashion when the 8" floppy fitted in
my suitcase easier 40 years ago.

If you'd take some remedial Grade schooling, you'd have noticed that you
said
synchronous motors are not stepper motors!
http://en.wikipedia.org/wiki/Synchronous_motor
(picture of a floppy drive motor included)
You sure take the dumbass prize, Jokaby, even away from TreeBert. And

Richard Tobin

unread,
Feb 11, 2012, 8:59:18 AM2/11/12
to
In article <jh4qro$2mt$1...@pcls6.std.com>,
Michael Moroney <mor...@world.std.spaamtrap.com> wrote:

>Floppy disks have a hole in them that told the drive when the tracks
>were to start, by shining a light through it.

8" and 5.25" floppies had at least one index hole to indicate the track
start. Some had multiple holes to indicate sectors; these were known
as "hard-sectored". As far as I know, 3.5" floppies did not have an
index hole at all.

-- Richard

be...@iwaynet.net

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Feb 11, 2012, 5:10:02 PM2/11/12
to
On 2/11/2012 4:15 AM, Androcles wrote:

> And printers don't scroll the paper with stepper motors and move the
> carriage with stepper motors either, right, you fucking clown?
> BTW, punch cards went out of fashion when the 8" floppy fitted in
> my suitcase easier 40 years ago.

And you think that printers are floppy disks? Nice try at changing the
subject. And motorcycles have tires too, so what? And Daisey wheel
printers use a DC motor to rotate the type, too. You are just digging
yourself deeper and deeper into the stupidity hole!

> If you'd take some remedial Grade schooling, you'd have noticed that you
> said synchronous motors are not stepper motors!
> http://en.wikipedia.org/wiki/Synchronous_motor
> (picture of a floppy drive motor included)

Oh look Muffy! Andro just discovered synchronous motors (once I gave him
the name of it). He thinks that because a floppy disk is driven by a
synchronous motor that therefore he's right that it's driven by a
stepper motor. I think he needs to upgrade his grade school education
just a bit.

http://en.wikipedia.org/wiki/Stepper_motor#Two-phase_stepper_motors

> You sure take the dumbass prize, Jokaby, even away from TreeBert. And
> both of you just wallow in your ignorance as if it were a perfumed bath!

Cripes and now you not only are showing total ignorance of motors but
have so little creativity you have to steal MY nasty comments about your
ignorance and try to use them on me? Bwahahaha! Pitiful!

Andro, here's some great advice: When you find yourself in a huge
stupidity hole, the FIRST thing you need to do is STOP DIGGING!
Even TreeBert had enough brains to shut up once he figured out he didn't
know what he was talking about!


micro...@hotmail.com

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Feb 11, 2012, 6:07:58 PM2/11/12
to
What about a circular motor?
That looks like a centrifuge...
I rode the gravitron twice...
That is outer weight that can be used as anti gravity
Look at the turning of the Earth and weight cancel all
the way to the equator...

Androcles

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Feb 11, 2012, 6:13:31 PM2/11/12
to

"BJA...@teranews.com" <be...@iwaynet.net> wrote in message
news:HGBZq.2277$hJ4...@newsfe20.iad...
| On 2/11/2012 4:15 AM, Androcles wrote:
|
| > And printers don't scroll the paper with stepper motors and move the
| > carriage with stepper motors either, right, you fucking clown?
| > BTW, punch cards went out of fashion when the 8" floppy fitted in
| > my suitcase easier 40 years ago.
|
| And you think that printers are floppy disks?

Did I say that, you snipping dumbfuck?
It's amazing you can read since the principle is the same for
printers, floppy discs, seismometers, rotary chart recorders
and clay tablets.
http://www.kaneinstrumentation.com/cement%20recorders.gif

What's so difficult about moving the paper sideways with your
left hand and the pen at right-angles with your right hand, shithead?
Oh wait, you never learned writing in grade school...
If you'd take some remedial Grade schooling, you'd have noticed that you
said
synchronous motors are not stepper motors!
http://en.wikipedia.org/wiki/Synchronous_motor
(picture of a floppy drive motor included)

G=EMC^2

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Feb 11, 2012, 9:32:11 PM2/11/12
to
On Feb 11, 6:07 pm, "microm2...@hotmail.com" <microm2...@hotmail.com>
wrote:
Person weights 199lb at the equator weighs 200lb at the poles TreBert

micro...@hotmail.com

unread,
Feb 11, 2012, 9:49:46 PM2/11/12
to
> Person weights 199lb at the equator weighs 200lb at the poles  TreBert- Hide quoted text -
>
> - Show quoted text -

I like to point out anti gravity is circular motion with outward
weight. It is not a force. Alia Sabur also pointed this out. That
there in the wheel is a form of anti-gravity!

Mitchell Raemsch; the dual prize

G=EMC^2

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Feb 11, 2012, 9:55:58 PM2/11/12
to
Its a flat disk type motor,so it can fit inside my laptop Having lots
of poles around its circumference. TreBert

be...@iwaynet.net

unread,
Feb 12, 2012, 12:31:06 AM2/12/12
to
On 2/11/2012 9:55 PM, G=EMC^2 wrote:

> Its a flat disk type motor,so it can fit inside my laptop Having lots
> of poles around its circumference. TreBert

Yes, and....? You think because it has lots of poles it "must" be a
stepper motor? Stepper motors move in "steps". Duh! Does your disk move
in "steps"? Andro thinks that's how it finds "sectors" (He just learned
a new word from Wikipedia). Of course this idea is hideously wrong.

Or maybe you agree with Andro who is determined to show the world just
how little a person can know and still think he knows it all? He says
that printers have stepper motors driving things therefore floppy disk
drives also have stepper motors to turn the disk. Makes perfect sense...
to Andro.

TreeBert you like to figure out how things work, so what is good about a
stepper motor and what is bad about it?

Androcles

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Feb 12, 2012, 3:44:34 AM2/12/12
to

"BJA...@teranews.com" <be...@iwaynet.net> wrote in message
news:b8IZq.16008$236....@newsfe03.iad...
| On 2/11/2012 9:55 PM, G=EMC^2 wrote:
|
| > Its a flat disk type motor,so it can fit inside my laptop Having lots
| > of poles around its circumference. TreBert
|
| Yes, and....? You think because it has lots of poles it "must" be a
| stepper motor? Stepper motors move in "steps". Duh!

Yep, stepper motors move in steps, that's why they are called
stepper motors. Duh indeed!
You are fighting hard to mask your embarrassment, idiot Jokaby!



Does your disk move
| in "steps"?

Yep, it sure does. Floppies start and stop between reads or writes, too.

Andro thinks that's how it finds "sectors" (He just learned
| a new word from Wikipedia). Of course this idea is hideously wrong.
|
Like the man said, the 8" and 5.25" floppies had a hole, but the 3.5"
doesn't.


| Or maybe you agree with Andro who is determined to show the world just
| how little a person can know and still think he knows it all?

Yes, I'm determined to show the world just how little the idiot Jokaby
can know and still think he knows it all, for as long as the idiot Jokaby
wants to embarrass himself.


He says
| that printers have stepper motors driving things therefore floppy disk
| drives also have stepper motors to turn the disk. Makes perfect sense...
| to Andro.

You bet it does, and this machine has stepper motors too, six of them:
waist, shoulder, elbow, wrist rotate, wrist flex and hand, making it
anthropomorphic.
http://www.americanrobot.com/main.html
It could thread a needle while carrying a 50lb load, 30 years ago.

|
| TreeBert you like to figure out how things work, so what is good about a
| stepper motor and what is bad about it?
|
Good -- positional accuracy
Bad -- acceleration


G=EMC^2

unread,
Feb 14, 2012, 8:21:46 PM2/14/12
to
On Feb 10, 6:00 pm, "BJAC...@teranews.com" <b...@iwaynet.net> wrote:
I see stepper motors being flat. Its disk shaped. They have good
torque. So no one is going to tell me its not flat I'm looking at a
flat stepper motor as I'm typing Its many poles Its top and bothom
coils How it is made to stop and go. Its first and second signal Its
very simple engineering but if your not seeing what I'm seeing its
tricky to visualize. I had also the right ideas in my head,but I
trully needed the picture I;m looking at.. It shows how the stepper
motor controls the "head" Reality is controling the head is
critical.Reason a tiny error in the position of the head could corrupt
the program or data and and even stop the computer. Picture shows
guide rails Pressure pad The the "rings grip disk. I now not only
know how this works I can fix it. Stepper motor can last a long time.
I like it a lot TreBert

G=EMC^2

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Feb 14, 2012, 8:27:14 PM2/14/12
to
On Feb 11, 12:47 am, "BJAC...@teranews.com" <b...@iwaynet.net> wrote:
> On 2/10/2012 11:29 PM, Michael Moroney wrote:
>
> > "Androcles"<H...@Hgwrts.phscs.Feb.2012>  writes:
>
> >> "BJAC...@teranews.com"<b...@iwaynet.net>  wrote in message
> >>news:ukhZq.10530$j%3.2...@newsfe04.iad...
> >> | Andro laughs manically over his own joke he thinks he made. So tell us
> >> | Andro, the Smart, just how does the head positioner ROTATE the disk?
>
> >> It doesn't, Jokaby the Dumbfuck, another stepper motor does the rotating.
> >> See, to find a file on a disc you need its x-position and its y-position, or
> >> if you prefer, its track and sector.
> >>  http://en.wikipedia.org/wiki/Disk_sector
>
> > Floppy disks have a hole in them that told the drive when the tracks
> > were to start, by shining a light through it.
>
> Now don't go messing with that thing Andro embarrassingly tries to pass
> off as a brain, by giving him facts. His head might explode.

Not all disks come with holes. Be percise "please" O ya TreBert

G=EMC^2

unread,
Feb 14, 2012, 8:48:50 PM2/14/12
to
On Feb 12, 3:44 am, "Androcles" <H...@Hgwrts.phscs.Feb.2012> wrote:
> "BJAC...@teranews.com" <b...@iwaynet.net> wrote in message
Good to do light work . Could work well for electric watch Possibly to
spin a gyro. Made very big it does not need a capacitor?? Could not
have the torque of a heavy iron rotor.So not good for electric cars
Electric cars need no transmittion. Best to keep in mind an electric
motor only draws the electricity needed.

be...@iwaynet.net

unread,
Feb 14, 2012, 11:05:05 PM2/14/12
to
You can "see" stepper motors as being "flat" but I "see" them as coming
in any shape you build them in! In fact I'm looking at two nice fat
heavy blue ones that run my X-Y precision drill. Most assuredly NOT
"flat". But no one is going to tell you anything, right? Just stuff your
fingers in your ears and shout at the top of your voice: "La La La La! I
CAN'T HEAR YOU!"

Look. A stepper motor moves in "steps"! Duh! Doesn't matter what shape
it is. Can you get that through your thick skull? In head positioner it
selects the track the head sits on. You are correct that if it is not
precise it causes errors. In fact the tracks recorded on one disk drive
will not be read correctly by a second disk drive unless positioning is
accurate.

Stepper motor can last a long time (no brushes or other contacts) but
then so can some other types of motors. The floppy disk is NOT turned by
a stepper motor no matter HOW many poles you and Andro have found in
one. Sectors do not represent motion steps. Disk turns continuously and
sectors are found by timing. (as others have noted)

Now do you understand how they work?


be...@iwaynet.net

unread,
Feb 14, 2012, 11:15:42 PM2/14/12
to
On 2/14/2012 8:48 PM, G=EMC^2 wrote:
> On Feb 12, 3:44 am, "Androcles"<H...@Hgwrts.phscs.Feb.2012> wrote:
>> "BJAC...@teranews.com"<b...@iwaynet.net> wrote in message

Andro wrote:
>> Good -- positional accuracy
>> Bad -- acceleration

Andro has the idea! They move in steps!
Good is positional accuracy PROVIDED they don't slip a position which
they tend to do at high speeds and/or torques. But providing they don't
slip they have the advantage of not needing any encoder to give you
their position. You simply count steps!

Bad is actually "acceleration". But rather the fact they have too much!
They move rapidly for each step and if there is too much inertia in what
they are driving they can skip a step. Also bad is they have no speed.
You can't drive pulses in them fast enough (inductance) to get really
high speeds. And of course you have to limit what they are driving so
torque is low enough they don't skip.

> Good to do light work . Could work well for electric watch Possibly to
> spin a gyro. Made very big it does not need a capacitor?? Could not
> have the torque of a heavy iron rotor.So not good for electric cars
> Electric cars need no transmittion. Best to keep in mind an electric
> motor only draws the electricity needed.

Electric watch. Yes. Seconds are steps! Spin gyro? No. Steppers do not
move well continuously nor at high speeds. They do not use capacitors.
You need to understand how stepper motor driver circuit works! Steppers
DO have a heavy metal rotor! It's full of magnets! They are not POWER
motors! They are positioning motors! OK?


Androcles

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Feb 15, 2012, 12:10:31 AM2/15/12
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"BJA...@teranews.com" <be...@iwaynet.net> wrote in message
news:njG_q.19384$Ep3....@newsfe08.iad...
| On 2/14/2012 8:48 PM, G=EMC^2 wrote:
| > On Feb 12, 3:44 am, "Androcles"<H...@Hgwrts.phscs.Feb.2012> wrote:
| >> "BJAC...@teranews.com"<b...@iwaynet.net> wrote in message
|
| Andro wrote:
| >> Good -- positional accuracy
| >> Bad -- acceleration
|
| Andro has the idea! They move in steps!
| Good is positional accuracy PROVIDED they don't slip a position which
| they tend to do at high speeds and/or torques. But providing they don't
| slip they have the advantage of not needing any encoder to give you
| their position. You simply count steps!
|

Yep, and that locates sectors on floppy discs.


| Bad is actually "acceleration". But rather the fact they have too much!

An iron squirrel cage rotor in an ordinary induction motor
draws a high current at start up, it is effectively a transformer with
the secondary (rotor) winding short-circuited. When it has reached
its operating speed the current reduces. To prevent excessively high
starting currents which would trip a breaker or blow a fuse, larger
motors have a wound rotor connected to a resistive load. This also
reduces the acceleration. Such motors operate at a fixed frequency
and the rotor has a variable "slip" frequency.
With a synchronous motor, however, there is no slip and the speed
depends solely on the frequency. This means that to accelerate
the rotor a gradual increase in frequency is needed or the motor
"breaks torque" or loses a step. If it loses a step then you lose
count. Now it is true that a floppy drive does accelerate to full
speed within one sector and so a constant frequency can be used,
but that's only because the load is light.
When the load is heavy, variable frequency is needed. Acceleration
is a negative attribution for stepper motors.


| They move rapidly for each step and if there is too much inertia in what
| they are driving they can skip a step.

Which loses count, and losing count would be distastrous for
a floppy.


| Also bad is they have no speed.
| You can't drive pulses in them fast enough (inductance) to get really
| high speeds. And of course you have to limit what they are driving so
| torque is low enough they don't skip.
|
| > Good to do light work . Could work well for electric watch Possibly to
| > spin a gyro. Made very big it does not need a capacitor?? Could not
| > have the torque of a heavy iron rotor.So not good for electric cars
| > Electric cars need no transmittion. Best to keep in mind an electric
| > motor only draws the electricity needed.
|
| Electric watch. Yes. Seconds are steps! Spin gyro? No. Steppers do not
| move well continuously nor at high speeds. They do not use capacitors.
| You need to understand how stepper motor driver circuit works! Steppers
| DO have a heavy metal rotor! It's full of magnets! They are not POWER
| motors! They are positioning motors! OK?
|
Consider a robotic arm that has to move in a straight line at
a constant speed to run a bead or a weld. Put your own finger
at one side of your desk or table and move it along the edge
to the other side, watching your elbow as you do so. You'll
see it "close" or fold up and then open, so the motor of the
robotic arm has to reverse itself in mid-move. The mathematics
is three dimensional matrices controlling the motor frequencies
with limits on how fast any single motor can move.





gu...@hotmail.com

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Feb 15, 2012, 1:14:14 AM2/15/12
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On Feb 8, 5:27 am, "Androcles" <H...@Hgwrts.phscs.Feb.2012> wrote:
> "BJAC...@teranews.com" <b...@iwaynet.net> wrote in message
>
> news:yioYq.20715$Sh7....@newsfe15.iad...
> | On 2/7/2012 5:54 PM, Androcles wrote:
> |
> | > Really? You do know they stay stopped when commanded to do so,
> | > even if you try to turn them?
> |
> | And do you know "motors" that don't turn are not called motors?
>
> Stepper motors have four states: turn clockwise, turn counterclockwise,
> stop and off. Stop is DC.
>

It's been decades since I programmed a Stepper but I believe it is
always in stop mode, and only moves when you send it a pulse...thus
why it is called a stepper motor...each steps requires a dc pulse (or
perhaps series of dc pulses)...


> | If it's a "motor" sooner or later it has to turn. And just what kind of
> | DC does one apply to a stepper motor to make it spin?
>
> Pulsed DC, of course.
>
> |
> | This is too easy! It's like shooting fish in a barrel.
> |
>
> Yep. Carry on opening and closing your mouth, you'll get
> DC water through your gills. Not many Jokabies swim
> backwards.
>
> | > | nor did Gates sell floppy drives. Still an idiot.
> | >
> | > You certainly are. Jokaby knows nothing about stepper motors.
> |
> | So Microsoft made a fortune selling floppy drives?
>
> I wouldn't know about that, to the best of my knowledge Microsoft
> only produce software.
>
> | Is that your
> | intellectual pronouncement for the day?
>
> Pronouncing the idiot Jockaby knows nothing about stepper motors
> doesn't require intellect.
>
> |
> | Still an idiot.
> You sure are.

G=EMC^2

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Feb 15, 2012, 10:13:24 AM2/15/12
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I can see how stepper motors work by looking at their top and bottom
teeth(poles) Its S and N top and Nand S bottom The shaft has a stop
that only allows a half turn forward or back. That is where its name
comes from. TreBert

G=EMC^2

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Feb 15, 2012, 10:43:49 AM2/15/12
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On Feb 14, 11:15 pm, "BJAC...@teranews.com" <b...@iwaynet.net> wrote:
All electric motors are based on the same physics. Electric watch
motor is the same as an electric train. Even the "Linear motor that
moves a maglev train. Its a shifting magnetic field that pulls the
floating train along the track. Wish to thank the poster ,for
bringing up how stepper motors can be used with great precision. How
the stator and rotor are disk shaped. TreBert

G=EMC^2

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Feb 15, 2012, 4:18:02 PM2/15/12
to
On Feb 15, 1:14 am, "gu...@hotmail.com" <gu...@hotmail.com> wrote:
> On Feb 8, 5:27 am, "Androcles" <H...@Hgwrts.phscs.Feb.2012> wrote:
>
> > "BJAC...@teranews.com" <b...@iwaynet.net> wrote in message
>
> >news:yioYq.20715$Sh7....@newsfe15.iad...
> > | On 2/7/2012 5:54 PM, Androcles wrote:
> > |
> > | > Really? You do know they stay stopped when commanded to do so,
> > | > even if you try to turn them?
> > |Their shaft has turned as far as it can go for it has hit a wall. Stepper motor still wants to turn but can't. That is true for every type motor. Not all electric motors turn.(Think Linear) TreBert
> > | And do you know "motors" that don't turn are not called motors?
>
> > Stepper motors have four states: turn clockwise, turn counterclockwise,
> > stop and off. Stop is DC.
>
> It's been decades since I programmed a Stepper but I believe it is
> always in stop mode, and only moves when you send it a pulse...thus
> why it is called a stepper motor...each steps requires a dc pulse (or
> perhaps series of dc pulses)...
>
>
>
> > | If it's a "motor" sooner or later it has to turn. And just what kind of
> > | DC does one apply to a stepper motor to make it spin?
>
> > Pulsed DC, of course.
>
> > |
> > | This is too easy! It's like shooting fish in a barrel.
> > |
>
> > Yep. Carry on opening and closing your mouth, you'll get
> > DC water through your gills. Not many Jokabies swim
> > backwards.
>
> > | > | nor did Gates sell floppy drives. Still an idiot.
> > | >
> > | > You certainly are. Jokaby knows nothing about stepper motors.
> > |
> > | So Microsoft made a fortune selling floppy drives?
>
> > I wouldn't know about that, to the best of my knowledge Microsoft
> > only produce software.
>
> > | Is that your
> > | intellectual pronouncement for the day?
>
> > Pronouncing the idiot Jockaby knows nothing about stepper motors
> > doesn't require intellect.
>
> > |
> > | Still an idiot.
> > You sure are.- Hide quoted text -
>
> - Show quoted text -

It can go round and round. All electric motors stop and go. Stepper
motors are made to stop on a dime.for their shaft can only make to
whetre its rotation is blocked by a cam action(hitting a wall) TreBert

G=EMC^2

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Feb 16, 2012, 10:19:36 AM2/16/12
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> whetre its rotation is blocked by a cam action(hitting a wall)  TreBert- Hide quoted text -
>
> - Show quoted text -

In the near future when my pulse fusion machine becomes reality all
motors will be electric. We must do away with burning coal. Its
smoke is creating a dark age. Progress Energy has PR adds on TV
telling you Coal is good for us. Progress Energy kills children
Progress Energy is a GOP Mafia company. They will kill for a buck. It
relate with Exxon telling us lead in gas can't hurt you. Get the
picture yet? TreBert

gu...@hotmail.com

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Feb 18, 2012, 6:52:42 AM2/18/12
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On Feb 15, 4:18 pm, "G=EMC^2" <herbertglazi...@gmail.com> wrote:
I just remember using stepper motor to move a table by sending pulses
through a computer.

The table's position was super accurate only by calculations and not
observations, thus each pulse would cause one single step in the
motor...and with each step & accurate turn, one could "mathematically"
calculate the table's new position.

G=EMC^2

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Feb 18, 2012, 10:12:39 AM2/18/12
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> calculate the table's new position.- Hide quoted text -
>
> - Show quoted text -

My new idea is to make a liquid motor. I have made jelly magnets.
(using jello as the medium.) Could make a liquid generator,and that
would help prove the Earth has a liquid generator at its core. TreBert
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