I keep getting 0.8 ohms, no matter what I do.

[aceswired]

New to this, building on an AGA-T2 with mesh. My first wick/coil worked great. I got a 1.7 on 5 wraps and vaped on it for a few days. Then I screwed up the coil trying to unscrew the bottom to empty the tank. No problem, I thought. I'll just build another one (actually was rather excited to try).

Rolled a new wick (a lot neater than my first one) and did the same wrap. My MVP registered it at 0.8 ohms. Hmm. That's no good. So I wrapped another loop of coil (had enough having not clipped it yet). Still 0.8. So I thought maybe I need to clip the ends before measuring. No difference.

Started over, this time with a new length of wire and 7 wraps. Still 0.8.

Any idea what I might be doing wrong? I got it to work fine the first time, but now I'm stuck.

 

[suspectK]

Sounds like you're getting a short. Pictures?

 

[Kanj.nguyen]

Hot spot. Almost definitely hot spot.

 

[aceswired]

Hmm. I'll try moving the wick higher up and a new length of wire.

 

[WattWick]

Mesh is essentially shorted (not a dead short, tho) until you oxidize it. You may be pulling your topmost wrap too tight when fastening your center post nut to trap the wire. If you don't coil with the wick already in the atty, the same may be true for the negative screw.

Have you oxidized your wick in any way before coiling it up? And did you torch your wire before coiling it? Just asking. There should be no need to utterly scorch the mesh, but you may find it easier if you soak it in e-liquid first and set fire to it... and let it burn off the liquid. Outside the atty, mind you. This will create an initial layer of oxide and may make pulsing easier on a regulated mod.

 

[Kanj.nguyen]

Just maintain an appropriate amount of pressure from wire to wick and you dont even need to oxidize. Even after oxidization you can still get hot spot - you wrote that you are using pre-made wick and coil. As far as i know those are already oxidized.

 

[aceswired]

So I finally figured it out. When I was disassembling it, I had unknowingly loosened the part that secures the pin to the bottom. It was up just a little bit and the pin wasn't making good contact with the battery. Doh!

Thanks to all for the input!