How can I get my coils to heat evenly?

[00gt1]

So I attempted my first macro coil build the other day with 24g kanthal on an 1/8in drill bit and i'm having some issues getting it to heat evenly from the inside out. Any tips or tricks on how to get the coil to heat evenly? This is by far the biggest coil I've ever build.

 

[Bronze]

So I attempted my first macro coil build the other day with 24g kanthal on an 1/8in drill bit and i'm having some issues getting it to heat evenly from the inside out. Any tips or tricks on how to get the coil to heat evenly? This is by far the biggest coil I've ever build.

Any particular reason why you are using 24 gauge?

 

[Uncletattoowhat]

Here's how i always do mine. For 24ga, i always use needle nose, but this is for every coil i build:

1. pulse fire until coils glow fully to eliminate hotspots
2. let go of button/switch (very important unless you want to short the coil)
3. pinch coils together with tweezers/needle nose pliers
4. repeat until happy

 

[00gt1]

Any particular reason why you are using 24 gauge?

Just wanted to try something new, a buddy of mine gave me a few feet of it. He told me you can build some wicked sub ohm macro coils with 24g.

Here's how i always do mine. For 24ga, i always use needle nose, but this is for every coil i build:

1. pulse fire until coils glow fully to eliminate hotspots
2. let go of button/switch (very important unless you want to short the coil)
3. pinch coils together with tweezers/needle nose pliers
4. repeat until happy

Thanks, I will try this when I get home.

 

[Bronze]

Just wanted to try something new, a buddy of mine gave me a few feet of it. He told me you can build some wicked sub ohm macro coils with 24g.



Thanks, I will try this when I get home.

Yes, you will definitely be subohm with 24 gauge. Be careful with those super-low ohm builds. Follow the heat-squeeze procedure outlined by uncletaytoo. 28 and 30 gauge generally make better microcoils but 24 and 26 is possible.

 

[State O' Flux]

24 gauge (and thicker) can be resistive to being wrapped evenly around a mandrel. I use a hemostat (lockable, surgical clamping pliers) to hold the wire, rather than my fingers, so I can get firm, even tension and a clean, consistent wrap.

24 is also resistant to being retained in a consistent fashion by the post screws. After you fire and compress the coil a few times... don't forget to re-tighten the screws. It's not a bad idea to check the screws before every vaping session as well... the wire is slower to compress, and does so over a longer period of use.

And... a bit of information about Kanthal wire.

 

[00gt1]

24 gauge (and thicker) can be resistive to being wrapped evenly around a mandrel. I use a hemostat (lockable, surgical clamping pliers) to hold the wire, rather than my fingers, so I can get firm, even tension and a clean, consistent wrap.

24 is also resistant to being retained in a consistent fashion by the post screws. After you fire and compress the coil a few times... don't forget to re-tighten the screws. It's not a bad idea to check the screws before every vaping session as well... the wire is slower to compress, and does so over a longer period of use.

And... a bit of information about Kanthal wire.

Thanks for the reading materiel!!

Edit: Great read!! Just what I was looking for!!

 

[snow blind]

26 is much nicer to work with and use if you're not going crazy sub-ohm. I stopped using 24 because of the heat time and how it reacts in most post holes.

 

[Uncletattoowhat]

26 is much nicer to work with and use if you're not going crazy sub-ohm. I stopped using 24 because of the heat time and how it reacts in most post holes.

I agree with this. Also, if I am looking to crazy sub-ohm, I will do parallel 26ga. Lots of surface area and quick heat up time.

 

[drmarble]

My coils heat up evenly when I first build them. I use 30 gauge on a 1/16 or 3/32 mandrel, wicked with rayon. After a few tanks they start tasting burned. When I open them up, clean, remove old wicks and dry burn I see that one coil on one end is glowing MUCH brighter than the rest of the coil. No amount of poking will make the coil glow evenly. I just have to wrap a new coil. This happens on kayfuns, taifuns GT and foggers v4. I an easily taste when it is going bad. The resistance increases (about 0.2 ohms) and I have to turn down the wattage until I get a chance to rebuild. I run the taifuns and kayfuns at 10.5 watts and the fogger at 19. My coils are usually 1.5 to 2.1 ohms. What am I doing wrong that makes my coils start to heat unevenly? Any help would be appreciated. That single hot coil if very annoying.

 

[vapdivrr]

My coils heat up evenly when I first build them. I use 30 gauge on a 1/16 or 3/32 mandrel, wicked with rayon. After a few tanks they start tasting burned. When I open them up, clean, remove old wicks and dry burn I see that one coil on one end is glowing MUCH brighter than the rest of the coil. No amount of poking will make the coil glow evenly. I just have to wrap a new coil. This happens on kayfuns, taifuns GT and foggers v4. I an easily taste when it is going bad. The resistance increases (about 0.2 ohms) and I have to turn down the wattage until I get a chance to rebuild. I run the taifuns and kayfuns at 10.5 watts and the fogger at 19. My coils are usually 1.5 to 2.1 ohms. What am I doing wrong that makes my coils start to heat unevenly? Any help would be appreciated. That single hot coil if very annoying.

seems very strange indeed. anyway to take a picture of one attached to said device? what mod u using?