Coil testing questions

[Wideawake]

Hi all,
My first post having taken up vaping a year ago on December 31st 2013...finally a resolution that has stuck and feeling so much better a year down the line,honestly,never has my chest felt as clear!! I use a Sigelei 13B bottom firing mod with an AW IMR 18350 battery topped off with an Aqwa protank....functional,cheap,reliable and looks good too!
I've decided now to build my own coils after much research. I'm using an AGA T3 tank for this,flat wire and bastos wick...now on to my question,something which has bugged me. Am i right in thinking that when i test my homemade coil using my multimeter that so as long as i get an ohms reading that is appropriate for me and my equipment then the coil is safe to use and by that i mean if the coil was shorting or otherwise failing/dangerous i would get an error reading of some kind or no reading at all?? My second question is can the wraps on the wick touch each other? Ive read conflicting reports on this,some say its fine whilst some say its a no no?
Thanks in advance for any advice,
Vape on

 

[stlhawks]

Are you from the future?

... taken up vaping a year ago on December 31st 2013...

I can't say for sure with flat wire, but you never want any wire to touch the sides of the atty - That will definitely create a short in the circuit. As far as testing your ohms, there are charts per length of wire out there in the interwebs that you can reference that go by each inch of wire. I would reference those to get a general idea of your resistance. I can't speak for the flat wire touching when making coils, but all I make is micro coils using 28 gauge kanthal...and those have to touch one another to be effective. Check out RiP Trippers on YouTube for some coil building tips. He's a great resource and one helluva funny guy doing his reviews.

Vape on, bud.

 

[*deleon517*]

what you want to do is test the ohm before and after inserting wick and the ohms should be exactly the same. This will insure that if using a ss mesh wick its not making a electrical connection to the coils. Now some devices will give a ohm reading with hot spots. which are technically shorts, and happen most often with mesh, or on the top leg of the coil on rba's like aga-t's. the easiest way to tell you good to go, is test fire before inserting wick use a very low power setting and only takes a second or 2 of button pressing to know. you should see it glow red starting from the center out. Its okay if the ends dont glow as bright as the center. you also want to make sure the leads(legs of the coils) to the + and - post are not glowing as well. always test this with no juice on the coil, as juice will not allow your coil to glow.

 

[*deleon517*]

also another thing with rebuilding you may want to look into getting a better battery for the mod. the aw imr 18350 is rated at 6amp and safe to use till .8ohm. most will want to use at least 10amps starting out for a better cushion. when learning to build your ohms will never be exactly where you want them. over time you will learn what wrap and wire combo you like and as your skills progress. you may lower your ohm's then 30amp batteries become the favorited.

 

[Thrasher]

testing the resistance is done at the screws for the coil. testing for a short can also be done at the 510 connector if you want to be sure it is ok. sort of a second check.

coil wraps touching depends on the setup, it was believed for some reason that wraps touching lowers the resistance, and im not sure how that came about. the idea is with a normal coil set up spreading the wraps across the wick will improve vapor, the thought was a tight coil will dry out the wick too fast where they are bunched up, over time we found this isnt the case and a tight coil will vape and heat up just as well as a spread coil.

when using ribbon i wraps as close as i can get without overlapping the wraps, as you can see many using micro coils also wrap the coil very thightly together.

 

[Wideawake]

Are you from the future?
Thanks for the info mate and im not from the future lol what i meant is that come the 31st of december 2013 i will have been vaping for a year... i quit the ciggies on december the 31st 2012..sorry for the confusion



I can't say for sure with flat wire, but you never want any wire to touch the sides of the atty - That will definitely create a short in the circuit. As far as testing your ohms, there are charts per length of wire out there in the interwebs that you can reference that go by each inch of wire. I would reference those to get a general idea of your resistance. I can't speak for the flat wire touching when making coils, but all I make is micro coils using 28 gauge kanthal...and those have to touch one another to be effective. Check out RiP Trippers on YouTube for some coil building tips. He's a great resource and one helluva funny guy doing his reviews.

Vape on, bud.

Thanks for the info mate and im not from the future lol what i meant is that come the 31st of december 2013 i will have been vaping for a year... i quit the ciggies on december the 31st 2012..sorry for the confusion

 

[Wideawake]

Deleon i just tested my coil using no juice...some smoke came off the wick however the coils did not glow red anywhere. I touched the coils though and trust me they were hot Is my coil functional..the ohm reading is satisfactory for the amp rating of my battery?

 

[Wideawake]

Thrasher, this was the answer i was looking for. I knew how to test at the 510 connection but all the tutorials ive watched/read skipped testing at the screws. Could you please expand and tell me where to place the black and red and on which screws in order to test. I will be good to go then. I know based on my ribbon gauge how many wraps i should be aiming for. Its the testing of the coil itself that i need to get down on