I've been trying to look at various charts to determine appropriate coil builds and wattage settings. So far I'm only confused by it so hopefully someone can help straighten me out.
Many voltage/ohm charts are like this one linked off Phil Busardo's site.
http://25.media.tumblr.com/tumblr_m9dkanCt0I1qc8949o2_1280.png
If I understand that chart, stay out of the red. I built a coil out of 316L ss that reads 1.99 ohms, so at 2 ohms I should go to a 'max' of around 8-9w at 4.2v. When I set my mod to this though I get squat for vapor/flavor. I end up going to 14-15w at 5.46v. Is this dangerous or less than desirable for a dual 18650 mod (parallel, not series)?
I'm not sure if that chart is strictly for mech mods or what. Originally the plan was to shoot for tc but in my rush to throw it together I forgot about the 1.5ohm cutoff for t.c. for my device. Oh well, no biggie I don't mind going with vw for now.
That brings up another issue, I used steam engine's coil calculator. I chose 316L ss/elite from the drop down, round wire, single coil, target resistance of 1.5ohm, inner diameter 4mm, a generous 20mm total leg length (each leg around 10mm long), 10 wraps. Should get me close to 1.5ohm target resistance. I counted my wraps, I have 11 because I was trying to get the leg both facing the same direction so ended up with an extra wrap. Ok so plugging in all the same data and going to 11 wraps I come up with 1.67-1.7ohm resistance. Why is my build coming out to 2ohm?
So far I seem to be way off on the ohm/watts chart, I seem to be a fair amount off compared to steam engines calculator so feel like I'm driving blind. Thanks in advance for any assistance.
Many voltage/ohm charts are like this one linked off Phil Busardo's site.
http://25.media.tumblr.com/tumblr_m9dkanCt0I1qc8949o2_1280.png
If I understand that chart, stay out of the red. I built a coil out of 316L ss that reads 1.99 ohms, so at 2 ohms I should go to a 'max' of around 8-9w at 4.2v. When I set my mod to this though I get squat for vapor/flavor. I end up going to 14-15w at 5.46v. Is this dangerous or less than desirable for a dual 18650 mod (parallel, not series)?
I'm not sure if that chart is strictly for mech mods or what. Originally the plan was to shoot for tc but in my rush to throw it together I forgot about the 1.5ohm cutoff for t.c. for my device. Oh well, no biggie I don't mind going with vw for now.
That brings up another issue, I used steam engine's coil calculator. I chose 316L ss/elite from the drop down, round wire, single coil, target resistance of 1.5ohm, inner diameter 4mm, a generous 20mm total leg length (each leg around 10mm long), 10 wraps. Should get me close to 1.5ohm target resistance. I counted my wraps, I have 11 because I was trying to get the leg both facing the same direction so ended up with an extra wrap. Ok so plugging in all the same data and going to 11 wraps I come up with 1.67-1.7ohm resistance. Why is my build coming out to 2ohm?
So far I seem to be way off on the ohm/watts chart, I seem to be a fair amount off compared to steam engines calculator so feel like I'm driving blind. Thanks in advance for any assistance.