Micro coils and ohms description

[ckn71nm]

Wire Type & Gauge: 28g Kanthal A-1
Coil size (what you wrap it on): 2mm (I think) diameter screwdriver that came with the atty
Number of coils: 12
Measured Ohms of coil: 1.3 ohm (on kayfun 3.1)

 

[ancient puffer]

Current spreadsheet is here

 

[TheReign]

Current spreadsheet is here

Whoever you are.. Wherever you are.. Thank You. Lol

 

[Tbev]

Yeah that thing is awesome, lots of input from less of people and lots of work trip get that spread sheet built.... Best part of I getting better every day!

Sent from my Transformer TF101 using Tapatalk

 

[cryptic]

Yep, the spreadsheet is nice. Did some protank / evod coil rebuilds. Did a couple twisted 32 ga which came out really nice.

32 ga. Kanthal A-1 (PAIR Twisted!)
7 Wraps
14GA needle
1.6 ohm

 

[Tbev]

Yep, the spreadsheet is nice. Did some protank / evod coil rebuilds. Did a couple twisted 32 ga which came out really nice.

32 ga. Kanthal A-1 (PAIR Twisted!)
7 Wraps
14GA needle
1.6 ohm

Add that to the spreadsheet of its not exactly what you were looking at.

 

[ancient puffer]

Updated spreadsheet here

 

[Tbev]

Hooray!

Sent from my Transformer TF101 using Tapatalk

 

[cryptic]

Thanks ancient p.! I did a 3 strand / 32 ga twisted for a RDA tonight.

32 ga. Kanthal A-1 (TRIPLE Twisted!)
10 Wraps
14GA needle
~1.5 ohm

I based my # of coils guess on a video rip did and came out spot on. His was:

32 ga. Kanthal (TRIPLE Twisted!)
7 Wraps
~5/64 rod
~1.1 ohm

 

[ancient puffer]

Thanks, cryptic Updated here.

 

[souskei]

Dual Coil Build In Genesis (Prometheus)

wires - 28 Gauge (dual)
used to coil - 2mm Bit
wraps - 12 Wraps Each
Combined OHMS - 1.1

i find around the 1 ohm mark is perfect for all my juices in a Genesis (Good Middle Ground for Flavor and Vapor)
ymmv of coarse on your wick type (i use a 3 Way Hybrid Wick)

 

[ancient puffer]

Updated sheet is HERE

 

[vapeasy]

For anyone interested...

If you don't have a ohms reader for your coils this may suffice.... I took the data from the wraps and ohms in the first post by nerak for 28GA, 30GA and 32GA, graphed the data and came up with an equation for wraps vs. Ohms with my trusty ol' TI-84. It should do the job if you use a 1/16 bit or anything very similar to that. The reasoning behind that is the majority of the data came from wraps around 1/16 bits.


All you have to do is input for X:

Y = Ohms
X = Wraps (preferably 1/16)


28GA:

Y = (0.136789 * X) - 0.01


30GA:

Y = (0.1815789 * X) - 0.018


32GA:

Y = (0.25 * X) - 0.1 [yes, 0.1 not 0.01]


Also, what may be even more useful is to use the inverse of these equations to find how many wraps you need for a certain ohm rating. In other words, if you want 1.4 ohms you input 1.4 ohms as Y in the inverse equation to find the number of wraps, X.


Input for Y:

Y = Ohms
X = Wraps (preferably 1/16)


28GA:

X = (Y / 0.136789) + 0.01


30GA:

X = (Y / 0.1815789) + 0.018


32GA:

X = (Y / 0.25) + 0.1


(note: these equations have been tested for outliers and re-calculated for a more precise calculation, but, do not expect these equations to be a full time replacement for ohms readers.)
Edited for additional information about inverse equation.

 

[mackman]

Nice work Vapeasy, Thanks

 

[flexsr]

Ery cool- nice to have if go away n forget your reader or yours breaks or at a friends house helping them. I saved it - it be fun to test a couple n see how close it gets

Thanks for your contribution.

 

[Maverickbo]

Nice! Thank you!!!


Sent from my iPhone using Tapatalk

 

[ZeroOhms]

For anyone interested...

If you don't have a ohms reader for your coils this may suffice.... I took the data from the wraps and ohms in the first post by nerak for 28GA and 32GA, graphed the data and came up with an equation for wraps vs. Ohms with my trusty ol' TI-84. It should do the job if you use a 1/16 bit or anything very similar to that. The reasoning behind that is the majority of the data came from wraps around 1/16 bits.


All you have to do is input for X:


28GA:

Y = Ohms
X = Wraps (preferably 1/16)

Y = 0.136789 * X

30GA:

Y = Ohms
X = Wraps (preferably 1/16)

Y = (0.1815789 * X) - 0.018


32GA:

Y = Ohms
X = Wraps (preferably 1/16)

Y = (0.25 * X) - 0.1 (yes, 0.1 not 0.01)


(note: these equations have been tested for outliers and re-calculate for a more precise calculation but do not expect these equations to be a full time replacement for ohms readers.)

Another simple equation to consider.

28g = ~ 0.44 ohms per inch
30g = ~ 0.74 ohms per inch
32g = ~ 1.11 ohms per inch

 

[jball49]

Help!

I have a patriot clone, bought the artistic wire tool from Michael's, got 28 ga Kanthal A1, the rda style ohm meter and have built 4 sets of coils now, not sure where I am going wrong?? The first two had around 10 wraps all coils made on 1.5 mm mandrel and only measured at .25 ohm, so I did ones that were 14 wraps and .80 ohms, made each 20 wraps which is pushing the boundary on length and it is only 1.1 ohm. All of this seems to go against everything I have read about what the resistance should be on coils that size so not sure what I am doing wrong but maybe it is something simple? I am looking for guidance and hope someone can help me? TIA, I appreciate it!

 

[vapnmuse]

subscribed to this thread

 

[Filthy-Beast]

Help!

I have a patriot clone, bought the artistic wire tool from Michael's, got 28 ga Kanthal A1, the rda style ohm meter and have built 4 sets of coils now, not sure where I am going wrong?? The first two had around 10 wraps all coils made on 1.5 mm mandrel and only measured at .25 ohm, so I did ones that were 14 wraps and .80 ohms, made each 20 wraps which is pushing the boundary on length and it is only 1.1 ohm. All of this seems to go against everything I have read about what the resistance should be on coils that size so not sure what I am doing wrong but maybe it is something simple? I am looking for guidance and hope someone can help me? TIA, I appreciate it!

IF it really is 28 ga kanthal, then your meter screwed up