Need help with coil build

[kenflawless89]

alrite so heres the deal: i've tryed building nano coils micro coils.. and the dragon coils.. and im getting NO vapor.. and i've even tryed super nano coils and still no vapor.. sometimes ill get lucky even if i get a normal sized cloud..all the my builds have been from .8 to 2 ohms.. im useing a 28 guage k1 kathal the max raps i've done was 10. could that be the problem? i wanna build a coil that produces alot of vapor but its still safe.. i have a private v2 mod with a trident gold (clone) with 18650 efst batteries 2000mah .. and im useing organic cotton as the wick.. i've tryed rapping around 1 16'ths trill bit and a 5 64'ths.. however i did manage to get 1.8 ohm coil in my fogger clone tank .. any suggestings ? or anything i could be doing wrong? anything can help. i am familuar with the ohms law and my battery specs..

 

[kenflawless89]

Anyone??

Sent from my HTC One

 

[State O' Flux]

Hmmm, a Trident eh. Built any dual coil set-ups? If not, try this:

1. Air flow is critical to good RDA performance. If your air holes are under-size, you may wish to drill them out. Most like to start at around 1.5mm (1/16") per coil to obtain a good combination of vapor and flavor. Adjusting the position of the air holes, relative to the coils, will alter vapor/temperature/flavor characteristics.
   
   
2. A pair of 28 ga Kanthal coils, 10 wraps on a 1/16" mandrel for 1.5Ω+/- each, with a net resistance of 0.7Ω+/-. At 0.7Ω+/- you should be fine with the batteries you have. See AP's spreadsheet for reference.
   If you choose to go below this resistance, I suggest you obtain some high drains, like the Efest IMR 18650 1600mAh 30 amp, or same mAh in a 24 amp AW IMR. See chart for reference.
   
   
3. Do not over-compress your cotton wick... too densely packed will restrict capillary action - too tightly fit into the coil will restrict flow and reduce retention at the coil. Pulling through the wick should offer little to no resistance. Better the impression of too little than too much or too tight. Easy to do, hard to describe.
   
   
4. You may want to experiment with a thin "bed" of cotton below the wicks and/or a thin "cloud" of cotton above the wick/coil. Not excessive mind you - don't want to cover the coils to the point where you don't have good air flow.
   Option would be, if using cotton yarn, to cut sufficient length so that you may wrap excess above and below coil, expecting similar results as the above arrangement of cotton ball fibers.

All I have.

 

[kenflawless89]

Ok. I actully just got set up.. Ill let you know the results and post pics.. I don't think it should take me no more than 30mins lol...

Sent from my HTC One

 

[kenflawless89]

Alright. Nice vape!..thanks.. lil harsh but good vape cloud. Better than what I had..

Sent from my HTC One

 

[kenflawless89]

the holes are already at 1/16 size

Sent from my HTC One

 

[kenflawless89]

so I did the 10 wraps on a 1/16 drill but since I don't have a mandrel.

Sent from my HTC One

 

[kenflawless89]

installed both coils.. this is before I did my first fire and before I tightened the coils up and got out the hot spots.

Sent from my HTC One

 

[kenflawless89]

after I straightened them out.. nice burn from middle out.

Sent from my HTC One

 

[kenflawless89]

Sent from my HTC One

 

[kenflawless89]

woot woot!!. Added a lil cotton

Sent from my HTC One

 

[kenflawless89]

BAM!!!.. thanks a lot amigo.

Sent from my HTC One

 

[kenflawless89]

Would adding another lil cotton cloud on top reduce the harsh on my throat? I don't think haveing nicatine helps.. Sry forgot to tagg you in the other post.

Sent from my HTC One

 

[emus]

I recommend a 1.0 to 1.2 ohm single coil positioned about 2mm from air hole.

 

[Paul.K]

Would adding another lil cotton cloud on top reduce the harsh on my throat? I don't think haveing nicatine helps.. Sry forgot to tagg you in the other post.

Sent from my HTC One

Not too sure on adding cotton on top would reduce harshness. Perhaps it's juice burning? I think your coil is big enough to try wicking through the coils instead of a bed of cotton. Too much cotton is not always good. In fact less is more usually. Just try different things til you get your desired vape. Kudos to you for wanting to do this safely.

 

[State O' Flux]

View attachment 298324 BAM!!!.. thanks a lot amigo.

No problemo jefe. ;-)

 

[kenflawless89]

Ahh.. how many wraps you recommend on 28 gauge to get to 1.0 to 1.2?

Sent from my HTC One

 

[Paul.K]

Around 6 wraps will get you 1.0 ohms on a 1/16th diameter coil.

 

[kenflawless89]

Thank for the replay ... I realized if it's. Not juiced up very good ... It'll burn!!.. lol.. but I do think to much cotton was one of my issues with my last builds.. I would put as much as I can..lol.

Sent from my HTC One

 

[Paul.K]

Also get Vaper's Toolbox free Android app. You can plug in your desired resistance and it will calculate wraps based on different parameters.