Building my first coil

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humdingher

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Been watching rip's videos for weeks. Been also reading every article i could find. I think i got it.
Plan is to go with kanthal 30. 10 wraps, torch it, squeeze it, use cotton for wick and aim for a 2 ohm resistance.
then stick it in a nautilus and vape at 4V. Getting an mvp so vw is still gonna be new to me but based on my research, should be around 8W.e
The goal is to graduate to a kayfun or a Russian cuz they just look awesome. Or maybe end up with a different RBAs.

Any final advice b4 I do the groceries?

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humdingher

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Have fun! You will be opening up a whole new world of vaping! It's kind of my favorite part, customizing the Vape. What are you going to use as a wrapping post? For the resistance you're looking for, I would go with 3/64+.
Haha
Too new to know what 3/64 is...
gotta Google that to figure out the gauge you're talking about.

Got a tiny screw driver, 2 mm girth. Gonna try a syringe needle for the protank coils if i don't end up in hospital on the nautilus coil.

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humdingher

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lol 3/64 is just a drill bit size. 3/64 of an inch. It's about 1.19 mm. You should be good with a 2mm post. :)
Does the size of the drill bit affect the resistance?
My understanding is that the number of wraps and length of wire changes the ohm.

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humdingher

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Yes! The size of the tool (diameter) does affect the resistance. Larger diameter = more wire used = higher resistance
That makes sense.
But I was wondering if the size of the loops affect it.
10 wraps on a skinny bit vs 7 wraps on a fat bit.
Same length, different size loops.
I guess better wording would be same wire same length, do micro and nano coils have different ohm

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DaveP

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Does the size of the drill bit affect the resistance?
My understanding is that the number of wraps and length of wire changes the ohm.

Coumarin pipe... Grappler... STAY AWAY!

Length of the wire is the sole contributor to resistance. I use a Hobby Lobby coil winder jig and the 1.83mm rod to make my coils if I'm using cotton for a wick. If it's silica rope, then I use 2mm silica and wrap directly on the wick rope. A 5/4 wind with 32ga Kanthal on 2mm silica yields about 2 ohms. When you wrap a coil, the two ends are half wraps. When you look at the top, you see 5 wraps and when you flip it over it's 4 wraps.

The larger the wire diameter the more wraps it takes to get the same resistance. Rip Trippers likes to do micro and nano coils. With micro coils he uses smaller diameter 32ga Kanthal and 5 or 6 wraps and with the nano (smaller) coils he likes 8 or 10 wraps of 26ga or 28ga. But you have to consider that Rip likes sub ohm vaping.

There's lots of latitude in how you wind and what gauge wire you use. The best estimating method is to check the ends of the wire with a voltmeter after you wrap and before you cut the ends. Measure resistance at the length it will take to insert the coil and make contact (the point where you will break off the ends). That will tell you if you need to add or remove a wrap to get the resistance you want. The more you do it, the better you will get at estimating the number and size of the coils and the wire gauge it will take to achieve the right resistance.
 
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Bigflyrodder

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Sounds like you're on the right path. I'd suggest torching the wire first as it takes spring out of it and makes it hold the wraps better. I use a purple tip lurelock needle tip to wrap on often for standard micros, works great, but a tiny screw driver works too. Make sure you squeeze the wraps together on whatever you are wrapping on first, then you can squeeze and torch before installing. Test for ohm reading, make sure you don't have any shorts, mount on your APV and fire it low at first pulsing. You can then start to squeeze out any hot spots and increase your vv/vw. Get it where you want it, add wick, juice and go.

You'll do great!
 

DaveP

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Just got through recoiling my Kayfun 3.1. First pulse lighted up fine with glow from the middle out each time. Then it suddenly gave me an E1 (Provari code for short circuit), followed by an E2 (overcurrent shutdown). The coil had just tested and dry burned fine.

All it took was a little outward pressure on each end and it went back to 1.4 ohms as it was before. I guess a couple of coils established too much contact. Squeezing the wire together is fine for shaping and dry burning, but sometimes you have to give the coils a little breathing room between each other to operate. Mine still looks compact, but there's microspacing between them now.

This was a 10 coil wrap with 28ga Kanthal on the 1.83mm coil winder rod that came out to be 1.4 ohms. It's producing Rip Tripper style exhales at 3.4v and 8.25 watts.
 
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TheColdHandedVG

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Haha
Too new to know what 3/64 is...
gotta Google that to figure out the gauge you're talking about.

Got a tiny screw driver, 2 mm girth. Gonna try a syringe needle for the protank coils if i don't end up in hospital on the nautilus coil.

Coumarin pipe... Grappler... STAY AWAY!

2mm would be good. At 10 wraps you may end up above 2ohms though. I think I have wrapped 30 gauge 6 times on a 2mm screwdriver and came out over 1ohm on dual coils which means over 2ohms with a single coil. Maybe go for 8 wraps?

The only thing I could suggest is that you don't need to torch the wire after it's on your deck. Just use the mod to fire the coils and you can compress them closer together from there. Torching would really only be used before actually wrapping the coils because they will be less springy and easier to work with, but I personally don't torch them myself.

EDIT: I want to mention too that I had really long leads on the build mentioned above so you may be fine with your original estimate. I think I was just experimenting and it didn't come out right...
 
All good advice - just remember the ohm Meyer is your friend and if your hand is getting warm take a closer look - something might have come loose - be safe and before you know it you will be making your own videos of crazy coils - don't be afraid to practice on good dripper atomizers like the tobh atty that is very easy to build on and try new thing out on . Good luck
 

humdingher

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...and a bust.
Not sure what resistance I am. but it's not lighting...
And I've developed a whole new set of respect for rip trippers and anyone else who builds a coil

Coumarin pipe... Grappler... STAY AWAY!
 
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