I have been working on getting my Ti01 coils perfect, it can be a pain since titanium is so springy and can be a challenge to keep the coil tight. I started wrapping spaced coils and it was working well but I knew micro coils could be better. I got some 24ga and coiled a set of dual coils at fifteen rotations, got them all snug on the leads and tempered them at 7-8w for a few pulses. Once I wicked them and started using it the outside connections are getting hot and carmelizing the juice only on one side of each coil. The coils were made on a jig and are perfect I can't figure this out any help would be greatly appreciated. The rda is a mutation x v4 on a ipv3li updated.
Ti01 Dual Coil Heating Form One Side
- Thread starter SUBHiro
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Hi SUBHiro and welcome to ECF 
Are your rotations touching each other?
Are your rotations touching each other?
retighten your leads? Those screws can be a pain sometimes...many times I've had one coil heat more than the other and all it took was a retighten of the coil screws and it was all good from there on out.
1: when you put in a new coil, after the first heating, you should tighten the post screws.
2: the negative legs getting hot? that sounds unusual; could just be the negative legs need tightening as stated above.
Thank you all for the quick response. I can't tell if this is actually an issue or not. I am using the ipv3li at 450 degrees and 60 joules with a Ti01 coil. The coils when pulsing at around 10w dry turn blueish and that seems normal, when I wick and get to vaping my coils are turning dark as if they are getting oxidation within a day or two is this normal? I read that the ti01 oxidation temp is higher than 600 degrees, am I sending too much power through my coils? I am vaping a self made thats pretty dark but it doesn't look like gunk from the juice.
In my opinion, if you are not willing to heat up the Ti wire until it glows a bit before you put in a wick, don't build contact coils. The reason is that with contact coils you need to build up enough oxidation on the wire to stop any shorts between wraps (rotations) so you avoid hot spots. The problem is that Ti oxidizes really fast when it's hot enough to glow and some people feel that oxidization may be unhealthy to vape.
The caramelization of juice on one side may be OK depending on how hot it's getting. If you are not tasting burnt juice I would say don't worry about it. If you taste burnt juice don't continue to vape it. It's not safe.
I use both contact and spaced coils. Spaced coils seem to give me a little more flavor. They just vape a bit different, but it's not much of a difference. When I use Ti I only make spaced coils to avoid having to heat up the wire too much.
I agree, that is normal.
That is normal too. It's not oxidation, it's 'gunk' or caramelization and it will happen no matter how cool your coil is.
Wire oxidation happens even at room temperature, so even a brand new wire has a layer of oxidation on it. But it doesn't build up much until you increase the temperature. Ultimately if your vape does not taste burnt the wire is not getting too hot so your wire will not be oxidizing quickly.
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