Thought I would share this

[twistedtimes]

I finally found a site that can give you the amount of wraps, coil and gauge t use and it works. I ordered 50 feet of 29 gauge Kenthal A-1 wire and couldn't figure out how to get the ohms right. I stumbled upon this site and I thought I would share it.

I made a coil with 25 wraps on a mm paper clip of 29 gauge Kenthal wire to get me a 3.5 ohm wrap. I run my voltage on 5 volts so I need it at this Ohm to get the sweet spot. Through my experiments getting as close to 8 watts is the best. Now I don't have to experiment any longer as this site can calculate it for you and the wraps. Real easy.


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[Thrasher]

I made a coil with 25 wraps on a mm paper clip of 29 gauge Kenthal wire to get me a 3.5 ohm wrap.

huh?.................

 

[MF DOOM]

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huh?.................

This......

 

[Baditude]

Some people try to make simple things into rocket science.


25 wraps or loops of coil? Really?

 

[Thrasher]

maybe trying to make a bridgless atty coil? dunno.

 

[donnah]

neat site.. thanks for posting (you guys are soo bad LOL)

 

[Thrasher]

neat site.. thanks for posting (you guys are soo bad LOL)

nu uh.

just trying to understand what was done here and why. to test the program?

 

[supertrunker]

and how long did this coil take to fit and troubleshoot - or does it protrude thru your door?

T

 

[grindle]

29AWG Kanthal A-1 = 0.22ohms per cm.

To reach 3.5 ohms you need almost 16cm of wire. The response time must be shocking.
You could probably get to work before the coil heats up. Buy a thinner wire/higher gauge.

 

[twistedtimes]

Some people try to make simple things into rocket science.


25 wraps or loops of coil? Really?

Yes really.....

Your comment about science, this whole thing is based on Ohms law. Sorry for sharing with you wizards. Keep twesting out your wraps and not knowing ohms law. Good luck on that.

 

[Thrasher]

wrapping a coil to a certain resistance is not related to ohms law. cool site but we just arent understanding what you made this coil for .

 

[vapdivrr]

is this for a genesis atomizer? like myself, coming over from cartomizers and regular atomizers to genesis atomizers, i had initially thought that i wanted a 3Ω coil or more, and then using 5 volts or more to push that resistance, but after some time i realized that in genesis attys this style is not really the way to go. genesis atomizers shine at lower resistances.

 

[shortee611]

I don't think we're understanding you. What would you possibly need 25 wraps 1 mm in diameter for and what would you fit this in. We're not trying to be jerks, just don't understand.

 

[Txrider]

Yes really.....

Your comment about science, this whole thing is based on Ohms law. Sorry for sharing with you wizards. Keep twesting out your wraps and not knowing ohms law. Good luck on that.

The wire is rated at ohms per inch or cm, simple math will tell you the radius of a coil and how many it will take to use that many inches or cm of wire.

No need of a calculator here. I would like to see what you are using it in though and how well it works for you. I have experimented a little bit in that direction but nothing approaching 25 wraps of coil, im curious.

25 wraps would mean a lot more surface area heating up, and a lot more thermal mass to heat, but would seem to me to be more stable and far less chance of burning things as easily. Same would go for a dual coil setup in a way, though it's not the same with 2 coils in parallel at say 3 ohms.

 

[Txrider]

wrapping a coil to a certain resistance is not related to ohms law. cool site but we just arent understanding what you made this coil for .

Would seem to me wrapping a coil to obtain a certain resistance to provide a certain wattage at your given voltage is nothing but ohms law with a little watts law on top.

 

[Lowlife]

I think he was just testing the accuracy of the calculator, I don't think he was using the coil for anything. (At least that is how I read it.)

 

[Thrasher]

Would seem to me wrapping a coil to obtain a certain resistance to provide a certain wattage at your given voltage is nothing but ohms law with a little watts law on top.

finding the resistance of a coil is not related to ohms law. the resistance of that coil will be used to calculate ohms law when finished
finding out the wattage of the device with that coil X a set voltage is ohms law..

but i understand what you mean - using ohms law you can figure what resistance you want to wind the coil.
just use a multimeter lol

umm whats watts law?

 

[Rader2146]

Power is not an element of Ohm's Law: Voltage, Current, Resistance.

Watt's Law utilizes elements of Ohm's Law to calculate power; W=V•A

Watt's Law is often lumped into Ohm's Law because if thier close relationship, but they serve two very distinct purposes.

 

[Thrasher]

while its can be relative for vaping, i never heard mention of watts law anywhere outside of the car stereo crowd, so it was more to see if they realize what they are talking about.
most of the online calculators have the two lumped together as we do use all 4 elements when vaping.

Voltage = Current * Resistance
Power = Voltage * Current

 

[st0nedpenguin]

I guess if you wedge the button down when you go to bed the coil would be just warming as you woke up in the morning.