Does anyone know how to measure or determine the wire size. I have
tons of motors, solenoids, and similar items. I need some #24 wire and
some #30 for a coil, but have to be sure regarding the wire diameter
as it's a critical ap and the author of the article says 'don't
substitute'.

I know I can weigh it, provided it's not on a spool or motor winding
already.

My local electrical shop has a wire gauge, but it stops at 18 gauge.

A microscope might work, but ones that have calibrated distance
measuring on the eyepiece are expensive.

Perhaps a milliohm meter might be able to measure the difference in
resistance of a foot of it or so, but that's hardly a standard item
either.

Any suggestions?

Thanks,

A

In sci.electronics.design Albert wrote:
Does anyone know how to measure or determine the wire size. I have
tons of motors, solenoids, and similar items. I need some #24 wire and
some #30 for a coil, but have to be sure regarding the wire diameter
as it's a critical ap and the author of the article says 'don't
substitute'.

Micrometer.
Vernier caliper may also work.
Either under $30US.

Thanks to my friend who emailed me the answer.

Around 5 dollars on ebay, wire gauge measuring gauge 1 to gauge 36.

Had no idea they made them that small.

Thanks to (you know who you are) and to all who made suggestions.

A


On 07 Apr 2005 21:38:52 GMT, Ian Stirling
wrote:

In sci.electronics.design Albert wrote:
Does anyone know how to measure or determine the wire size. I have
tons of motors, solenoids, and similar items. I need some #24 wire and
some #30 for a coil, but have to be sure regarding the wire diameter
as it's a critical ap and the author of the article says 'don't
substitute'.

Micrometer.
Vernier caliper may also work.
Either under $30US.

Ian Stirling wrote:

In sci.electronics.design Albert wrote:


Does anyone know how to measure or determine the wire size. I have
tons of motors, solenoids, and similar items. I need some #24 wire and
some #30 for a coil, but have to be sure regarding the wire diameter
as it's a critical ap and the author of the article says 'don't
substitute'.



Micrometer.
Vernier caliper may also work.
Either under $30US.


And don't forget to remove any insulation before measuring the wire.

Bill K7NOM

"Ian Stirling" wrote in message
...
In sci.electronics.design Albert wrote:
Does anyone know how to measure or determine the wire size. I have
tons of motors, solenoids, and similar items. I need some #24 wire
and
some #30 for a coil, but have to be sure regarding the wire diameter
as it's a critical ap and the author of the article says 'don't
substitute'.

Micrometer.
Vernier caliper may also work.
Either under $30US.

I don't believe anyone uses vernier calipers anymore. I've got a Helios
dial caliper made a long time ago in Deutschland, but nowadays a caliper
with a LCD is probably a lot cheaper.

On Sat, 9 Apr 2005 04:36:20 -0700, "Watson A.Name - \"Watt Sun, the Dark
Remover\"" wrote:


"Ian Stirling" wrote in message
...
In sci.electronics.design Albert wrote:
Does anyone know how to measure or determine the wire size. I have
tons of motors, solenoids, and similar items. I need some #24 wire
and
some #30 for a coil, but have to be sure regarding the wire diameter
as it's a critical ap and the author of the article says 'don't
substitute'.

Micrometer.
Vernier caliper may also work.
Either under $30US.

I don't believe anyone uses vernier calipers anymore. I've got a Helios
dial caliper made a long time ago in Deutschland, but nowadays a caliper
with a LCD is probably a lot cheaper.


I do, got fed up with resetting the mechanical dial type through the rack and
pinion becoming dirty, and electronics/robustness issues with electronic types.

Peter

I read in sci.electronics.design that "Watson A.Name - \"Watt Sun, the
Dark Remover\"" wrote (in
) about 'wire size question', on
Sat, 9 Apr 2005:

I don't believe anyone uses vernier calipers anymore. I've got a
Helios dial caliper made a long time ago in Deutschland, but nowadays a
caliper with a LCD is probably a lot cheaper.

In UK, you can get vernier calipers for around GBP1 (and mine check out
as quite sufficiently accurate). LCD calipers are about GBP35.
--
Regards, John Woodgate, OOO - Own Opinions Only.
There are two sides to every question, except
'What is a Moebius strip?'
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

On Sat, 9 Apr 2005 12:57:50 +0100, the renowned John Woodgate
wrote:

I read in sci.electronics.design that "Watson A.Name - \"Watt Sun, the
Dark Remover\"" wrote (in
) about 'wire size question', on
Sat, 9 Apr 2005:

I don't believe anyone uses vernier calipers anymore. I've got a
Helios dial caliper made a long time ago in Deutschland, but nowadays a
caliper with a LCD is probably a lot cheaper.

In UK, you can get vernier calipers for around GBP1 (and mine check out
as quite sufficiently accurate). LCD calipers are about GBP35.

You can get low-end LCD calipers in the US for the equivalent of about
GPB8 plus tax. For GPB1 ($1.99) I think you'd get some stamped or
plastic item that would only be good to 0.01".


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

I read in sci.electronics.design that Spehro Pefhany
wrote (in
) about 'wire size
question', on Sat, 9 Apr 2005:

You can get low-end LCD calipers in the US for the equivalent of about
GPB8 plus tax. For GPB1 ($1.99) I think you'd get some stamped or
plastic item that would only be good to 0.01".

No, they are metal, and claim to measure to 0.001 inch, 0.02 mm. I've
checked mine against a good micrometer and it's as accurate as I can
read the vernier. YCCMV, of course.
--
Regards, John Woodgate, OOO - Own Opinions Only.
There are two sides to every question, except
'What is a Moebius strip?'
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

"Spehro Pefhany" wrote in message
news
On Sat, 9 Apr 2005 12:57:50 +0100, the renowned John Woodgate
wrote:

I read in sci.electronics.design that "Watson A.Name - \"Watt Sun,
the
Dark Remover\"" wrote (in
) about 'wire size question', on
Sat, 9 Apr 2005:

I don't believe anyone uses vernier calipers anymore. I've got a
Helios dial caliper made a long time ago in Deutschland, but
nowadays a
caliper with a LCD is probably a lot cheaper.

In UK, you can get vernier calipers for around GBP1 (and mine check
out
as quite sufficiently accurate). LCD calipers are about GBP35.

You can get low-end LCD calipers in the US for the equivalent of about
GPB8 plus tax. For GPB1 ($1.99) I think you'd get some stamped or
plastic item that would only be good to 0.01".

Zackly. The ones I've seen in stores don't go down to a thousandth.
Not to mention the jaws probably wear and/or get dimpled by the sharp
edges of objects, ruining the accuracy.

But at two bucks apiece, you just treat them as disposable and discard
them at the end of the day. ;-)

Unless, of course, you're a plastic surgeon using them to measure the
results of your liposuction machine. ;-))

Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the
reward"
Info for manufacturers:
http://www.trexon.com
Embedded software/hardware/analog Info for designers:
http://www.speff.com