Is this how twisted builds are supposed to be?

[jj6404]

Coil id does not affect the resistance or surface area, AT ALL. It does affect the length and width of your coil though.

Yes, it does. If it affects the length of your coil, it affects your resistance, since coil length and Guage are the primary factors of a given wire composition that directly affect your coil's resistance.

Say you want a 0.3 ohm dual coil build with 24 Guage wire. Say that is about 6 wraps with a 2.4 mm ID. The same resistance build would only require 5 wraps with a 3 mm ID. So you can't just tell someone yeah 6 wraps will always give you 0.3 ohms. No one measures exactly how much length of wire they use for a build. They measure the ID and wraps. So YES, in the world of coil building, inner diameter does affect your desired resistance AT ALL.


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[Mikedin]

Based on your original post and the fact that at 16amps+ you ARE flirting with the batteries limits. You probably might want to avoid the "high and mighty" attitude.

YOU DO NEED A METER. The meter on the device is there to advise you, and warn of possible issues NOT for building coils. Have you even checked to see if your device reads correctly?????? MOST Volt/ohm meters have an ERROR rate. Do you know what yours is? I have one meter almost 1ohm off. When I first stated building protank coils couldn't figure out why all my 1.5ohm builds were 2 wraps different than the calculators. Until I got a new 510 meter and a Volt/ohm NOT from Harbor frieght. N

Harbor freight tools should be used for nothing other than a doorstop or paper weight nothing they make is to their specs lol so a definite good call on that line lol

 

[SLIPPY_EEL]

jj is upsetting the locals

some of these attys dont let you see into the coil area very well when you have the topcap on or you can see but its dark, aswell as checking to see if the ohms are different with the topcap on to off i also shine a torch into the atty just to get a visual, make sure the coils arent touching the air control when you twist the AC.

Twisted wire like that jj act as one wire not like parallel, you have to have the legs wires untwisted.(and then your ohms will be halfed once again)

i use smurf batteries< down to 0.1 but i also know how far out my meters and readers are out or not.

 

[jj6404]

jj is upsetting the locals

some of these attys dont let you see into the coil area very well when you have the topcap on or you can see but its dark, aswell as checking to see if the ohms are different with the topcap on to off i also shine a torch into the atty just to get a visual, make sure the coils arent touching the air control when you twist the AC.

Twisted wire like that jj act as one wire not like parallel, you have to have the legs wires untwisted.(and then your ohms will be halfed once again)

i use smurf batteries< down to 0.1 but i also know how far out my meters and readers are out or not.

Damn slippy, what did I do??? Lol. Honestly man I don't even remember what I originally said in this thread. I know it was only a few weeks ago or whatever but you know how vape knowledge goes. Since I started this thread I've been building and vaping on fused claptons with no problems. Oh and I did get a "good" ohm meter. Actually it was supposed to be good but it's not working right much to my discontent. I bought one of those ultimate USA ohm readers and yeah, I'm discussing the problems with that in another thread. I'm also mainly using a regulated mod now too to avoid ramp up time from the claptons.

But anyway, who did I piss off?? I didn't piss you off in that other thread did I? I didn't mean to.



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[SLIPPY_EEL]

First off i just wanna say i use Samsung 25R or HE2 batteries in parallel mod's to get as low or lower than 0.1ohm and i swap em out for a fresh set at 4v so as not to super stress them, when you have a few mod's doing the same thing they last all day, otherwise the one mod with one set of cell's would prob only last me a couple of hours.

No jj you didnt upset me here or on the other thread (i have thick slippery skin), keep asking away my friend

I just wanna also say that if you want any advice on batteries etcetc pm me if you like, alot of people are gonna do stuff regardless of what others are gonna say so is far better to pass on knowledge rather than kick you in the teeth

 

[Cullin Kin]

Coil id does not affect the resistance or surface area, AT ALL. It does affect the length and width of your coil though.

Uh... Yes it does. Unless you're talking about using the same amount of wire. A larger coil ID with the same number of wraps will have a higher resistance as more wire is being used. The surface area of a right cylinder is A=2πrh+2πr^2, and for our purposes, we just deal with A=2πrh. Keeping height the same (i.e. number of wraps), a larger radius will increase surface area...

OP, how do you use steam engine to predict twisted builds?

 

[93gc40]

Uh... Yes it does. Unless you're talking about using the same amount of wire. A larger coil ID with the same number of wraps will have a higher resistance as more wire is being used. The surface area of a right cylinder is A=2πrh+2πr^2, and for our purposes, we just deal with A=2πrh. Keeping height the same (i.e. number of wraps), a larger radius will increase surface area...

OP, how do you use steam engine to predict twisted builds?

Resistance is determined by the length and diameter of the wire. The od/id of the form you wrap it around has NO bearing on the resistance of the resulting coil.



Use the Parallel/twisted setting from the wire type drop down

 

[jj6404]

Uh... Yes it does. Unless you're talking about using the same amount of wire. A larger coil ID with the same number of wraps will have a higher resistance as more wire is being used. The surface area of a right cylinder is A=2πrh+2πr^2, and for our purposes, we just deal with A=2πrh. Keeping height the same (i.e. number of wraps), a larger radius will increase surface area...

OP, how do you use steam engine to predict twisted builds?

Wow you explained that better than I ever tried to.

Yeah as far as using steam engine for twisted it is near the top where you select type of wire. There is a drop down box that is set to default at "Round".


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[Cullin Kin]

Resistance is determined by the length and diameter of the wire. The od/id of the form you wrap it around has NO bearing on the resistance of the resulting coil.



Use the Parallel/twisted setting from the wire type drop down

Based on your surface area statement, I don't have much trust... lol

You should probably include material properties in your explanation of what controls resistance.

Yes, and what determines the length of wire used? The inner diameter. Indirectly, it has everything to do with resistance.

 

[jj6404]

Based on your surface area statement, I don't have much trust in anything else you say.

Yes, and what determines the length of wire used? The inner diameter. Indirectly, it has everything to do with resistance.

I tried making the same point I think earlier in this thread. I don't think you can make him understand. [emoji53]


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[Cullin Kin]

I tried making the same point I think earlier in this thread. I don't think you can make him understand. [emoji53]


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I feel like he's looking at this from the point of if you know the resistance per foot of wire, you also know the resistance per inch. If you cut 2 inches of wire and wrap it on any sized ID, they would all come out the same resistance. He's right. However, no one does that. Also, no one can wrap a perfect coil.

However, this exact same argument was done about a month ago and no one came out victorious. So, I'll just leave it be.

 

[93gc40]

Based on your surface area statement, I don't have much trust... lol

You should probably include material properties in your explanation of what controls resistance.

Yes, and what determines the length of wire used? The inner diameter. Indirectly, it has everything to do with resistance.[/QUOTE.

The resistance of a coil is determined by the wire length and diameter of the wire.. TARGET resistance of a BUILD, includes other factors. One of which is the diameter of your core.

FWIW it's that same wire length and diameter thing, that is the root of the surface area issue. You can call it what you want, be as indirect as you want.. I try, right or wrong, to be give direct answers. BUT 1ohm worth of wire will always be 1ohm no matter how many or how few wraps you give it or how big the hole is.

 

[Cullin Kin]

When you say coil ID has no bearing on the resistance or surface area of the coil, you should probably specify using the same amount of wire. You didn't say this, either time. The way you put it was as a general statement, which is simply not true, nor 'direct.' This is the basis of this misunderstanding.

 

[SLIPPY_EEL]

talking of surface area, braiding a simple 3braid pony tail style wire is a great way to boost surface area, i see a lot of time people mistaking twisting for braiding, there is a huge dif.... just thought i'd mutter to myself again lol