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Nichrome Wire

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sparky72854

Jan 1, 1970
0
I just want to share this with the group.


I have been using nichrome for resistors and foam cutting. The best
souce I have found for small quanities is PnJ Resources, LLC.

Sparky
 
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Jon Slaughter

Jan 1, 1970
0
sparky72854 said:
I just want to share this with the group.


I have been using nichrome for resistors and foam cutting. The best
souce I have found for small quanities is PnJ Resources, LLC.

Are you the same guy that asked about making one a while back? If so I
suppose you were successful? Could you explain what happened and what you
learned for the rest of us?

Thanks,
Jon
 
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sparky72854

Jan 1, 1970
0
Are you the same guy that asked about making one a while back? If so I
suppose you were successful? Could you explain what happened and what you
learned for the rest of us?

Thanks,
Jon

No Jon, I am new to posting google forums, I am more of a reader. I
did search the archives here and other places about making foam
cutters and resisters. I hope in the future I will be able to post on
more helpful issues.

Thanks,
Sparky
 
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notbob

Jan 1, 1970
0
did search the archives here and other places about making foam
cutters....

What's to research? Get some wire and a variac, turn the variac up to
where the wire is hot enough to cut, and get to cutting.

nb
 
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Rich Grise

Jan 1, 1970
0
What's to research? Get some wire and a variac, turn the variac up to
where the wire is hot enough to cut, and get to cutting.

I didn't even use a variac - I used a wall wart, and just cut the wire
to the right length for the volts/amps/power I wanted.

I never made a foam cutter - I just held the alligator clips in my
hands and cut some foam just to see if I could do it. FWIW, it was
a 7.5V,1A wall wart and about 9" of #36 nichrome advertised as "28
ohms per foot" or some such.

Cheers!
Rich
 
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John Popelish

Jan 1, 1970
0
sparky72854 said:
I just want to share this with the group.


I have been using nichrome for resistors and foam cutting. The best
souce I have found for small quanities is PnJ Resources, LLC.
In what country?
 
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notbob

Jan 1, 1970
0
a 7.5V,1A wall wart and about 9" of #36 nichrome advertised as "28
ohms per foot" or some such.

Dang, that's a BIG wallwart! ;)

nb
 
J

Jon Slaughter

Jan 1, 1970
0
Rich Grise said:
I didn't even use a variac - I used a wall wart, and just cut the wire
to the right length for the volts/amps/power I wanted.

I never made a foam cutter - I just held the alligator clips in my
hands and cut some foam just to see if I could do it. FWIW, it was
a 7.5V,1A wall wart and about 9" of #36 nichrome advertised as "28
ohms per foot" or some such.

I did a similar experiment with some nichrome wire from a soldering iron...
it was actually kinda beautiful experiment cause the wire would glow and
fade and if breathed on it some parts would cool off. It got hot enough to
cut some plastic.

I still have this idea to use it and that PnJ's site has that 11$ sampler
that looks like it will come in handy.

Jon
 
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Rich Grise

Jan 1, 1970
0
Dang, that's a BIG wallwart! ;)

2"W x 3"H x 2"D.

It's only 7.5 watts, after all. No-load, it puts out about 10V.

Cheers!
Rich
 
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JeffM

Jan 1, 1970
0
Jon said:
Shut the **** up...your post is fucking useless...
Thank you for your courteous response to my pedanticism.
you really think it matters that he called this a forum?
I find than making someone aware
that he is posting to a *distributed* network
and that what he sees on Google is NOT what *everyone* sees
can make him a better poster.

True, the OP has lurked and is doing a good job of emulating the norm,
but a few extra facts never hurt. The Wikipedia article
also covers a lot of ground beyond Google's interface.
If so you have a useless life... might as well just shoot yourself now...
Again, thank you for your mature, well-reasoned response.
 
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Jon Slaughter

Jan 1, 1970
0
And theres no place here for a pedant.

1. a person who makes an excessive or inappropriate display of
learning.
2. a person who overemphasizes rules or minor details.
3. a person who adheres rigidly to book knowledge without regard to
common sense.



Atleast you admit you are one.
 
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John Popelish

Jan 1, 1970
0
Jon said:
And theres no place here for a pedant.

Don't be silly. Of course there is room here.
1. a person who makes an excessive or inappropriate display of
learning.
2. a person who overemphasizes rules or minor details.
3. a person who adheres rigidly to book knowledge without regard to
common sense.



Atleast you admit you are one.

I am more likely to kill file those who are unhelpful while
being rude. My day doesn't need that.
 
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Jon Slaughter

Jan 1, 1970
0
John Popelish said:
Don't be silly. Of course there is room here.

No no... we have to many of them. Theres no room.
I am more likely to kill file those who are unhelpful while being rude.
My day doesn't need that.

Thats your choice...
 
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Grostle News

Jan 1, 1970
0
I needed a hot nichrome wire for cutting but didn't know where to buy or
even how to hook-up and calculate power-heat dissipation etc.

So I found an old portable electric heater someone threw out in the
garbage and took the "guts" out and laid on the gypsum surface side of a
piece of drywall (also found as refuse). I carefully straightened out
one of the coils of nichrome, stretched and mounted it on and between
two small, flat stacks made from pieces of cut drywall glued together. I
could then operate the rheostat to adjust the heat intensity of the wire
for cutting.

The problem with my "Stupid Man's Way" cutter solution was that the
entire coiled nichrome heating element was heated up and drew power and
current in excess of what was needed for the smaller cutting portion of
the wire. But since it was used for only one or two small jobs, the
impractical points of operation weren't worked out for improvement.

It was years ago that I used the makeshift cutter. The damned, clumsey
thing is still sitting near my work bench, I can see it now while I
write this message, a monument to my lack of knowledge in electronics
and electricity.

gn
 
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Chuck

Jan 1, 1970
0
John said:
In what country?

Ebay is a good source of nichrome wire
in small lengths and a variety of AWG.

Prices are reasonable.

Chuck
 
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