Resistant Wire: How many centimer = How many Ohm ?

[Hrathor]

Here's a better explained version: How to check resistance with a multi-meter

 

[imeothanasis]

I have a pair of DMM's but am still interested in the calculations. I am sure it was listed somewhere but can someone tell me what gauge was sent with the Ody's?

Thanks!

0,15 fat resistance wire and 0,2 fat NO resistance wire Steve

 

[bpaulette]

32 Gage Nichrome is 10.6 ohms per foot
34 Gage Nichrome is 17 Ohms per foot

so, for 32 ga, 10.6 ohms/12 = 0.8833 ohms per inch. in order to make a coil that is 1.5 ohms you need a R wire that is 1.69 inches long.

for 34 ga, 17 ohms/12 = 1.4166 ohms per inch. In order to make a coil that is 1.5 ohms you need a R wire that is 1.06 inches long.

Now, that is the length of the R wire that is between the 2x NR wires.

This clears up a LOT!

But now with Imeo saying the wire he sent was 0,15 fat, I'm not really sure which wire gauge we're talking about anymore. Was the wire Imeo included the 32 or 34 gauge wires you talked about Zoranth, or a different one all together?

 

[Hrathor]

This clears up a LOT!

But now with Imeo saying the wire he sent was 0,15 fat, I'm not really sure which wire gauge we're talking about anymore. Was the wire Imeo included the 32 or 34 gauge wires you talked about Zoranth, or a different one all together?

American wire gauge - Wikipedia, the free encyclopedia

I figured it out to be 34.5 AWG, but I don't claim to even be amateur level when it comes to this stuff. I'm sure someone will correct me if I am wrong. And I don't really see any half-sizes. Or maybe there is a different system that is close but not identical.

 

[Oddy]

38 i believe, 61 ohms per meter

 

[bpaulette]

38 i believe, 61 ohms per meter

38 gauge (42.2/foot or 3.51/inch) would actually make sense, from the ohms I've been getting

 

[Zoranth]

According to my measurements using a digital caliper. The "R" wire I got with my Oddy is 0.005" which is 36 ga wire. If it is Nichrome wire that would make it 27 ohms/foot. 27/12=2.25 ohms per inch. So, to make a 1.5 ohm coil you would need 0.667" "R" wire between the "NR" wires to get 1.50075 ohms

0.75" or 3/4" would be 1.575 ohms

Data obtained from here Nichrome Wire

 

[I'mGatMan!]

I just ordered a multimeter for $10 from Bruce. Will that work for me?

 

[bpaulette]

Jacobs has a great selection of Nichrome - but where do most of you iAtty vets get your no resistance wire?

 

[Hrathor]

I just ordered a multimeter for $10 from Bruce. Will that work for me?

That'll work, yes.

 

[Jiggity-J]

0.75" or 3/4" would be 1.575 ohms

That's about what I get for 1.5-1.6ohms using the R wire it came with.

 

[Zoranth]

A lot of people get .999 Fine Silver Wire 30ga either Dead Soft (DS) or Half Hard (HD) from here: http://stores.ebay.com/Twisted-Jewels/999-Fine-Silver-Wire-/_i.html?_fsub=1696550012&_sid=181846042&_trksid=p4634.c0.m322

Jacobs has a great selection of Nichrome - but where do most of you iAtty vets get your no resistance wire?

 

[Jiggity-J]

I just ordered a multimeter for $10 from Bruce. Will that work for me?

I bought that one and it's a tiny meter but works. You will need to let both leads touch to get the resistance from the leads, then subtract that from every reading you get. Mine says 0.4, so If my reading is say 1.9ohms, I actually have 1.5ohms.

 

[Valsacar]

I need to get a new multi meter, son broke mine. I used ~2.5cm of R (between the silver NR) and provari tells me 2.8ohm... Stock R from CoV (just got everything), still vapes ok, due to small capacity it's my secondary flavor which means it's on my stealth (with aluminum GGTS air control).

 

[Vaporologist]

Just bumping this thread for those just receiving their ODY and have questions about wire. Some good info here...

 

[mwa102464]

If it helps Been buying my Silver wire here pretty cheap =
Sterling Silver Wire Round 30 gauge, Half Hard, Wholesale 5 feet, 10 feet etc, $1.75 Flat Rate Shipping. Free Shipping For Order Over $35. | AppletreeGemsems

 

[fright88]

If it helps Been buying my Silver wire here pretty cheap =
Sterling Silver Wire Round 30 gauge, Half Hard, Wholesale 5 feet, 10 feet etc, $1.75 Flat Rate Shipping. Free Shipping For Order Over $35. | AppletreeGemsems

.

Thanks I've been having a hard time finding half hard in smaller quantity then 50 bucks