[Lab] Buying copper wire

[Ken McKinnon]

You likely would of figured out your error when 30' of 8 AWg weighed 20 
lbs and needed crimpers that have 2 foot long handles, or were hydraulic:-)
Glad to hear you re-verify requirements.

Ken

On 2015-05-18 4:40 PM, Tom Burns wrote:
> I was off on my AWG requirements, not doing anything crazy - I just 
> took molex size as AWG which I now see would be a mistake :)
>
> I've used speaker wire a bit, but it's usually a bit too thick for my 
> uses.
>
> Andrew, I'm super interested and will contact you off list.  Thanks!
>
> Thanks everyone for your suggestions (and the big correction, lol :) )
>
> On Monday, May 18, 2015, Dave Hunt <dave at huntgang.com 
> <mailto:dave at huntgang.com>> wrote:
>
>     I have used speaker wire and even cheap dollar store extension
>     cords cut up for the wire.   For thinner guage requirements, I
>     often default to cutting up old network cables.
>
>     On May 18, 2015 1:20 AM, "Ken McKinnon" <klmckinnon at rogers.com> wrote:
>
>         I shoould also mention the connectors and pins play a huge
>         role in choice.
>         from http://www.molex.com/catalog/web_catalog/pdfs/C.pdf
>         for Molex .100", no pin carries more than 3 Amps, so using
>         anything below 20 AWg for moderate runs is a waste of copper.
>
>         Ken
>
>         -------- Forwarded Message --------
>         Subject: 	Re: [Lab] Buying copper wire
>         Date: 	Mon, 18 May 2015 07:14:11 +0200
>         From: 	Ken McKinnon <klmckinnon at rogers.com>
>         To: 	lab at artengine.ca
>
>
>
>         That's some pretty hefty stuff, capable of carrying high
>         currents, and consequently tougher to handle, needing heavier
>         gauge tools to work.
>         Normally hobbiests live above the 18AWG - 30AWG side of
>         things.  For stranded wire of that size, you can likely get
>         some at either the Home Depot like or electrical shops
>         (Westburne).  7AWG is an unusual size (commercially
>         available), you may have to move to 6 or 8 depending on
>         requirements.
>
>         Just out of curiosity, how much current are you intending on
>         driving as ultimitely that is the factor that guages size
>         (current and line voltage loss (i.e. I2R) over the run)
>         Given your pin sizes (.100" and .156"), you will have maximum
>         wire AWG that you can use.
>         http://www.engineeringtoolbox.com/awg-wire-gauge-d_731.html
>         will convert AWG to mm2, but to get to your pin size you would
>         need to do some conversions.
>
>         Ken
>
>         On 2015-05-17 11:48 PM, Tom Burns wrote:
>>         Hi,
>>
>>           I'm sick of using high gauge ribbon cable for wiring
>>         between circuit boards and potentiometers, and similar
>>         low-power applications.  Especially because this 909 clone
>>         I'm building has a bunch of 0.1" and 0.156" molex connectors
>>         I need to crimp.
>>
>>           Where should I go to buy ~30' of multistrand copper wire? 
>>         Probably want 10AWG, 14AWG, 7AWG.
>>
>>           Digikey links, or local suggestions would be great.
>>
>>         Thanks in advance!
>>
>>         Tom
>>
>>
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>
>
>
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