Can y'all help a builder out? (28g X-wraps=Y-ohms)

[treehead]

Hey all you fine micro/nano coil experts with experience, I've been honing my craft with these awesome builds, and I was wondering if you could share your observations of wrap to coil ratio for nano-coils using 28 gauge on something about the size of 26 gauge kanthal. (I like using a medium sized safety pin because it's just a tad tinier, yet stronger, and I have a handle to work with, plus I have big clumsy hands so it's nice to lock it down so i don't drop it on the floor everytime I see a butterfly.

-So far it seems on this safety pin about 12 wraps gives me 1-1.5 ohms, which is nearly what I want anyway, but as I dive deeper into the ohm world or go up for air I'd like to see if anyone has that "feel" of how many wraps = what ohm-age.

-Thanks so much for your pre-learned wisdom .
-Picture below is pretty much dead on the size needle I'm using. (And I know you trekky's will appreciate this too, I found this "nano enterprise" while searching! It's just...illogically small )
View attachment 315667View attachment 315668

***Side question! Do you guys think less cotton is more? I've found the less large of a cotton cloud I use the better wicking, as long as it's touching the deck just so I seem to have less issues. If anyone else has a different experience please tell me because I haven't used "big clouds" that much at all.***

 

[brekec88]

To get lower ohms
Wrap around a smaller diameter
Use less coils
Use thicker (lower gauge) kanthal
To raise ohms just do the opposite

Where it gets complicated is you can use a combination of above techniques in different ways to achieve different ohms levels. For example if you prefer longer number of coil wraps and want your coils at a large diameter you can use lower gauge kanthal. All 3 of those factors (and i'm sure a lot of other ones too) effect your ohms.

I have only been rebuilding for a couple months so that might not all be 100% accurate but its what I have learned through my experiences. Hope it helps.

 

[lordmage]

First i like using mandrels or drill bits so you have a more precise size.
most use either a 1/16th bit or .0625 inch if memory serves or a 5/32 bit or 2mm you can even go smaller. if you like.

when you take a wire diameter and resistance per inch then you simply take that amount and warp a coil so if your aim for 2 ohm coils and your 28 is not working with the space you have go a size higher in diameter if your aiming lower go a size lower. things get wired when you are using twisted kantal or going for a certain type of coil. clap-ton for example.

 

[treehead]

To get lower ohms
Wrap around a smaller diameter
Use less coils
Use thicker (lower gauge) kanthal
To raise ohms just do the opposite

Where it gets complicated is you can use a combination of above techniques in different ways to achieve different ohms levels. For example if you prefer longer number of coil wraps and want your coils at a large diameter you can use lower gauge kanthal. All 3 of those factors (and i'm sure a lot of other ones too) effect your ohms.

I have only been rebuilding for a couple months so that might not all be 100% accurate but its what I have learned through my experiences. Hope it helps.

Thanks for the info brother, I have a pretty strong grasp of the fundamentals. I was more looking for a kind of estimate based on experience like: 10 wraps of 28 gauge on an average pin is about .8 ohms, 15=1.2 ohms, 20= etc. just a kind of ballpark guesstimate , I have an ohm meter but I want to start getting the "feel" of wraps to ohms you know?
-really thank you though

 

[treehead]

First i like using mandrels or drill bits so you have a more precise size.
most use either a 1/16th bit or .0625 inch if memory serves or a 5/32 bit or 2mm you can even go smaller. if you like.

when you take a wire diameter and resistance per inch then you simply take that amount and warp a coil so if your aim for 2 ohm coils and your 28 is not working with the space you have go a size higher in diameter if your aiming lower go a size lower. things get wired when you are using twisted kantal or going for a certain type of coil. clap-ton for example.

I was actually wrapping by inches earlier today, twas a little trickier as I was trying to wrap it without any trimming (I know it's not mandatory to clip the excess), It was kinda like guessing how far I could stitch a wound with a certain length of stitching (weird metaphor I know I'm a nurse lol), I did end up making the diameter bigger in order to fit inside the chamber, which surprisingly wasn't to hard, it almost widened and wrapped itself, all I did was force it onto a bigger drill bit.

I may try to make a spreadsheet with gauges+number of wraps on Xdiameter=about this many ohms, that would be a beginners dream

 

[lordmage]

then this will help you input the size space and wire type and it will tell you the information Steam Engine | Vaping related calculators

 

[coalyard]

Read and learn... http://www.e-cigarette-forum.com/forum/clearomizers/486794-protank-microcoil-discussion.html

 

[ScottP]

If you have an Android device, download the free app Vaper's Toolbox. It helps you figure out those exact calculations.

 

[brekec88]

then this will help you input the size space and wire type and it will tell you the information Steam Engine | Vaping related calculators

+1 thanks was always looking for something like this.

 

[VaPreis]

I have found this calculator to be an invaluable tool when coiling for a specific resistance. I usually plug the numbers into it before I build a coil for anything anymore.

http://www.e-cigarette-forum.com/forum/new-members-forum/506159-kanthal-coil-calculator.html

 

[sonicdsl]

Moved to Coil Builds

 

[super_X_drifter]

Here's a chart for micro coils at 10 wraps with 4 different gauge wires

 

[treehead]

then this will help you input the size space and wire type and it will tell you the information Steam Engine | Vaping related calculators

Aaaaand bookmarked, thanks so much mage! EXACTLY what I was looking for, I was laying in bed this morning and I thought (after I asked this question) that there's probably a calculator for it, as there is in every aspect of vaping . Much appreciated brother.

 

[treehead]

Here's a chart for micro coils at 10 wraps with 4 different gauge wires

Thanks so much, this is probably the most helpful thread I've seen to date! This really gives me a "feel" of wraps to ohms, very interesting, between the gauges it seems to jump up starting with +.20, +.25, +.35. So now I see it's exponential like I'd imagined, rather than a fixed increase.

-Very appreciated, thanks.

 

[treehead]

First i like using mandrels or drill bits so you have a more precise size.
most use either a 1/16th bit or .0625 inch if memory serves or a 5/32 bit or 2mm you can even go smaller. if you like.

when you take a wire diameter and resistance per inch then you simply take that amount and warp a coil so if your aim for 2 ohm coils and your 28 is not working with the space you have go a size higher in diameter if your aiming lower go a size lower. things get wired when you are using twisted kantal or going for a certain type of coil. clap-ton for example.

I like the 1/16 drill bit, it's nice for when you just want what you want without hassle. However I've been kinda trying to (safely) push the limits recently and have been getting amazing vapes, this morning I made a nano-coil using 28gauge, around another piece of 28gauge (and made it even too!) I just clamped the diameter wire between to vices so I had two hands to work with. Pretty dense and silky!

 

[brekec88]

I went on ebay and got 1 / 1.5 / 2 / 2.5 / 3 mm drill bits for like 5 bucks total. They work great.