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| 09 May 2008 12:06:50 |
| N_Cook |
| Stripping 40 AWG/45 SWG or finer magnet wire/enamelled copper wire? |
To then be able to solder to coarser wire. Assuming coating will not melt off/evaporate at soldering iron temperature I tend to grip between 2 fingertips and abraid with the finest grade of wet and dry paper against a fingertip and turning wire around and repeating a few times. Would abraiding against a block of rubber be better or some other process altogether ? for minimised chance of localised (so failure point) weakness due to stretching near the stripping point. Perhaps a small fine-grade grind stone in a Dremmel with direction of rotation towards the bulk of wire, turning the wire . -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
| 09 May 2008 15:27:42 |
| Ron(UK) |
| Re: Stripping 40 AWG/45 SWG or finer magnet wire/enamelled copper |
N_Cook wrote: > To then be able to solder to coarser wire. > Assuming coating will not melt off/evaporate at soldering iron temperature > I tend to grip between 2 fingertips and abraid with the finest grade of wet > and dry paper against a fingertip and turning wire around and repeating a > few times. Would abraiding against a block of rubber be better or some other > process altogether ? for minimised chance of localised (so failure point) > weakness due to stretching near the stripping point. Perhaps a small > fine-grade grind stone in a Dremmel with direction of rotation towards the > bulk of wire, turning the wire . Try dipping the end in some xylene (or MEK from a model shop if you can`t get xylene) then wiping the coating off quickly with a tissue. I`m presuming you know all the reasons not to come into contact with xylene. Ron |
| 09 May 2008 21:33:12 |
| Jim Adney |
| Re: Stripping 40 AWG/45 SWG or finer magnet wire/enamelled copper wire? |
Here's what's always worked for me: Hold the end of the wire in a lighter or match flame until the varnish just flashes off. You may need to move the flame around a little to char the whole length that you want "stripped." Take a postage stamp sized bit of fine sandpaper, 600 grit or finer, and fold it over once so that the sanding surface faces itself. Draw the wire thru the folded sandpaper, squeezed gently between thumb and forefinger, several times, turning it slightly between times until the wire is cleaned down to clean copper. It's actually quite quick and easy. - ----------------------------------------------- Jim Adney jadney@vwtype3.org Madison, WI 53711 USA ----------------------------------------------- |
| 10 May 2008 07:58:06 |
| N_Cook |
| Re: Stripping 40 AWG/45 SWG or finer magnet wire/enamelled copper wire? |
Jim Adney <jadney@vwtype3.org > wrote in message news:cf1a245ijuamuo39tj6e9q3a44clpgq7c6@4ax.com... > Here's what's always worked for me: > > Hold the end of the wire in a lighter or match flame until the varnish > just flashes off. You may need to move the flame around a little to > char the whole length that you want "stripped." > > Take a postage stamp sized bit of fine sandpaper, 600 grit or finer, > and fold it over once so that the sanding surface faces itself. Draw > the wire thru the folded sandpaper, squeezed gently between thumb and > forefinger, several times, turning it slightly between times until the > wire is cleaned down to clean copper. > > It's actually quite quick and easy. > > - > ----------------------------------------------- > Jim Adney jadney@vwtype3.org > Madison, WI 53711 USA > ----------------------------------------------- But the breaking strain of such fine wire is only a few ounces and wouldn't such heating weaken such wire. My bottle of MEK is now nearly full of empty space and no idea where to get anymore. -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
| 10 May 2008 07:57:29 |
| James Sweet |
| Re: Stripping 40 AWG/45 SWG or finer magnet wire/enamelled copper |
N_Cook wrote: > Jim Adney <jadney@vwtype3.org> wrote in message > news:cf1a245ijuamuo39tj6e9q3a44clpgq7c6@4ax.com... >> Here's what's always worked for me: >> >> Hold the end of the wire in a lighter or match flame until the varnish >> just flashes off. You may need to move the flame around a little to >> char the whole length that you want "stripped." >> >> Take a postage stamp sized bit of fine sandpaper, 600 grit or finer, >> and fold it over once so that the sanding surface faces itself. Draw >> the wire thru the folded sandpaper, squeezed gently between thumb and >> forefinger, several times, turning it slightly between times until the >> wire is cleaned down to clean copper. >> >> It's actually quite quick and easy. >> >> - >> ----------------------------------------------- >> Jim Adney jadney@vwtype3.org >> Madison, WI 53711 USA >> ----------------------------------------------- > > But the breaking strain of such fine wire is only a few ounces and wouldn't > such heating weaken such wire. My bottle of MEK is now nearly full of empty > space and no idea where to get anymore. > > -- > Diverse Devices, Southampton, England > electronic hints and repair briefs , schematics/manuals list on > http://home.graffiti.net/diverse:graffiti.net/ > > Most hardware stores carry it by the quart and gallon here in the US, no idea about UK. |
| 10 May 2008 11:21:46 |
| Ron(UK) |
| Re: Stripping 40 AWG/45 SWG or finer magnet wire/enamelled copper |
N_Cook wrote: My bottle of MEK is now nearly full of empty > space and no idea where to get anymore. A model shop. Slater`s MEK_PAK Ron |
| 11 May 2008 02:07:30 |
| Ross Herbert |
| Re: Stripping 40 AWG/45 SWG or finer magnet wire/enamelled copper wire? |
On Fri, 9 May 2008 12:06:50 +0100, "N_Cook" <diverse@tcp.co.uk > wrote: :To then be able to solder to coarser wire. :Assuming coating will not melt off/evaporate at soldering iron temperature :I tend to grip between 2 fingertips and abraid with the finest grade of wet :and dry paper against a fingertip and turning wire around and repeating a :few times. Would abraiding against a block of rubber be better or some other :process altogether ? for minimised chance of localised (so failure point) :weakness due to stretching near the stripping point. Perhaps a small :fine-grade grind stone in a Dremmel with direction of rotation towards the :bulk of wire, turning the wire . Forget the burning or scraping options, and there is no need to go out trying to find a source of xylene. Use a rapid paint stripper - it works excellently. Leave it for a minute and then wipe off with a tissue. |
| 11 May 2008 10:46:06 |
| N_Cook |
| Re: Stripping 40 AWG/45 SWG or finer magnet wire/enamelled copper wire? |
Ross Herbert <rherber1@bigpond.net.au > wrote in message news:38kc24lkquj79foj7gn5n8il3b657qr584@4ax.com... > On Fri, 9 May 2008 12:06:50 +0100, "N_Cook" <diverse@tcp.co.uk> wrote: > > :To then be able to solder to coarser wire. > :Assuming coating will not melt off/evaporate at soldering iron temperature > :I tend to grip between 2 fingertips and abraid with the finest grade of wet > :and dry paper against a fingertip and turning wire around and repeating a > :few times. Would abraiding against a block of rubber be better or some other > :process altogether ? for minimised chance of localised (so failure point) > :weakness due to stretching near the stripping point. Perhaps a small > :fine-grade grind stone in a Dremmel with direction of rotation towards the > :bulk of wire, turning the wire . > > > Forget the burning or scraping options, and there is no need to go out trying to > find a source of xylene. Use a rapid paint stripper - it works excellently. > Leave it for a minute and then wipe off with a tissue. I tried some ordinary "slow" paint stripper , gloopy stuff. Scooped into one of those 2cc polythene bottles that expensive military connectors come in. Has a flap lid so can seal and reuse. That takes some time to soften. Contained dichloromethane and methanol. What to look for in contents of rapid versions or trade-name? -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |