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new build on new rda question

ayersbj

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Just received a madhatter and put together a dual coil build on fully upgraded smok xcube II. This is my second build so very new to building coils. I did a dual coil build with 26g 316l ss. The ohms came out to .40. When using it my xcube II sometimes drop out of tc and goes to watts. I double checked the build and comes up correct on ohms reader. Was wondering what might be causing this problem or if anyone else has had same problem with their smok xcube II doing this. Again it is updated so has options for all three wires (ss,ni,ti) in tc mode. More info. Also runs well in watt mode at 65watts. And does run TC well just drops out every once in a while.
 

mach1ne

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i have not perfected tc coils from ss yet, but in my experience they have to be spaced coils, and the thing that makes it drop you into watt/power mode is hotspots. im not sure on that, but the only two things that fix that for me have been to let the rda cool off completely (couple hours later usually), or to tinker with the wraps using tweezers and try to space any wraps that got too close to each other. hopefully someone else either can confirm that, or correct me and share the solution with us.
 

ayersbj

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i have not perfected tc coils from ss yet, but in my experience they have to be spaced coils, and the thing that makes it drop you into watt/power mode is hotspots. im not sure on that, but the only two things that fix that for me have been to let the rda cool off completely (couple hours later usually), or to tinker with the wraps using tweezers and try to space any wraps that got too close to each other. hopefully someone else either can confirm that, or correct me and share the solution with us.
ty for the response. Yeah I did a microcoil style I think that is what they call em. I did check for hotspots but they are really close to almost touching. I'll try making another set this time space em. Heck gotta practice and learn anyways.
 

f1r3b1rd

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I'm not sure what the xcube is tuned to for ss but you may have to adjust the TCR,
and SS needs to be spaced coils for TC.
this is a chart of TCR values
2543482
 

ayersbj

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I'm not sure what the xcube is tuned to for ss but you may have to adjust the TCR,
and SS needs to be spaced coils for TC.
this is a chart of TCR values
2543482
Thank you for reply. Xcube II is set at .001 for temperature coefficient for stainless steel. I did make my dual coil to be at .40 on your chart says needs to be .5 or greater would that cause a problem? My coils are pretty close so I am gonna make more tomorrow anyways do need the practice lol. I will change tcr as well to .00092 on the xcube2. Read a lot of your posts on here and wanna thank you for all your info you have given. Just one more question if you don't mind. Is there a difference in ss316 and ss316l? Or is that just labeling.. Its a ud wire box got from gearbest.
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f1r3b1rd

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my chatt has nothing to do with totatl resistance, that is the tcr- hpw much the resistance changes with temperature, some mods you can set that, allowing different wires to be used or TC

on what you have total resistance at(your build),- I think it should work, check your connections. I don't have a smok TC mod; so, hopefully, someone with that mod will chime in.
 

ayersbj

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my chatt has nothing to do with totatl resistance, that is the tcr- hpw much the resistance changes with temperature, some mods you can set that, allowing different wires to be used or TC

on what you have total resistance at(your build),- I think it should work, check your connections. I don't have a smok TC mod; so, hopefully, someone with that mod will chime in.
OK thank you. was just thrown off a bit by the recommended coil ohms. Yeah I just tried the tcr at .00092 and did same thing. So it must be my insufficient coil building technique lol. Tis ok practice practice practice. Again ty for your help.
 

advancedvapesupply

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They do not need to be spaced for tc to work with 316L, but you do need to make extra sure they are firing correctly. We have experimented at AVS a lot with tc using our wire, and most of us here use TC exclusively. If they are dry firing correctly, have solid connections to the atomizer, etc, tc works great with 316L. I don't have experience with the xcube II specifically, so I dont know why it would drop out of tc. Does your build match up with steam engine's ohm amount for the same build? Also, the builds I typically use with TC are around approximately .15 ohm.

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advancedvapesupply

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Yes, there is a difference between 316 and 316L. They are different kinds of stainless steel.

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f1r3b1rd

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They do not need to be spaced for tc to work with 316L, but you do need to make extra sure they are firing correctly. We have experimented at AVS a lot with tc using our wire, and most of us here use TC exclusively. If they are dry firing correctly, have solid connections to the atomizer, etc, tc works great with 316L. I don't have experience with the xcube II specifically, so I dont know why it would drop out of tc. Does your build match up with steam engine's ohm amount for the same build? Also, the builds I typically use with TC are around approximately .15 ohm.

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I'm using your 316l claptons in my petri rda in tc with zero issues on my dna 200
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advancedvapesupply

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I'm using your 316l claptons in my petri rda in tc with zero issues on my dna 200
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Nice build! I just tried some fused claptons in a royal hunter and it chucked. I'm a flavor chaser more than clouds though,so most of my builds are vertebraid. I use a DNA 200 as well.

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f1r3b1rd

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Nice build! I just tried some fused claptons in a royal hunter and it chucked. I'm a flavor chaser more than clouds though,so most of my builds are vertebraid. I use a DNA 200 as well.

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I have that in the magma reborn .. I'm getting more flavor from the petri/fused claptons though
 

advancedvapesupply

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I have that in the magma reborn .. I'm getting more flavor from the petri/fused claptons though
To each his/her own! The best advice you can possibly give another vaper is...whatever works for you, find it and use it! I do get great flavor on the fused claptons as well, but there's a lot of considerations and overall prefer vertebraid. Lightning fast ramp up, etc. These are mitigated in tc though

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f1r3b1rd

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To each his/her own! The best advice you can possibly give another vaper is...whatever works for you, find it and use it! I do get great flavor on the fused claptons as well, but there's a lot of considerations and overall prefer vertebraid. Lightning fast ramp up, etc. These are mitigated in tc though

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I see what you're saying about ramp up. It would be nice to not need as much power; but what can I say?
morepower.jpg
 

ayersbj

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They do not need to be spaced for tc to work with 316L, but you do need to make extra sure they are firing correctly. We have experimented at AVS a lot with tc using our wire, and most of us here use TC exclusively. If they are dry firing correctly, have solid connections to the atomizer, etc, tc works great with 316L. I don't have experience with the xcube II specifically, so I dont know why it would drop out of tc. Does your build match up with steam engine's ohm amount for the same build? Also, the builds I typically use with TC are around approximately .15 ohm.

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thank you for the reply yeah does match up on steam engine. But I didn't think the ohms needed to be at .15 for tc. Hadn't read either way anywhere saying it couldn't be more but like I said I'm a newby and Just learning everything. Who knows maybe tc does have to be .15 won't hurt to try. I did make another set of coils and spaced these .30 on ohms this time and did same thing. Did check ramp up on both coils and were almost identical. Used a screw as the wrap base this time cool trick learned on a tutorial. Liked the .15 tc coils but was just trying different things. Put my crown on it with a crown .15 tc coil and it worked fine but this was the ni200 coils don't have any ss ones.
 

advancedvapesupply

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thank you for the reply yeah does match up on steam engine. But I didn't think the ohms needed to be at .15 for tc. Hadn't read either way anywhere saying it couldn't be more but like I said I'm a newby and Just learning everything. Who knows maybe tc does have to be .15 won't hurt to try. I did make another set of coils and spaced these .30 on ohms this time and did same thing. Did check ramp up on both coils and were almost identical. Used a screw as the wrap base this time cool trick learned on a tutorial. Liked the .15 tc coils but was just trying different things. Put my crown on it with a crown .15 tc coil and it worked fine but this was the ni200 coils don't have any ss ones.
I didn't mean they need to be at
.15, just mentioned it so you know there isn't a certain resistance it needs to be at to work well. But around .25-.3 should work great. Crown ss coils aren't great for tc because I believe they have NR wire legs (I'm not positive on this- but read it somewhere)

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ayersbj

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I didn't mean they need to be at
.15, just mentioned it so you know there isn't a certain resistance it needs to be at to work well. But around .25-.3 should work great. Crown ss coils aren't great for tc because I believe they have NR wire legs (I'm not positive on this- but read it somewhere)

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Not sure what nr wire legs are lol. But the crowns tc works great on the xcubeII. Sort of baffling. I mean all I can think of is my coils aren't up to snuff. This is only my fifth build so I am sure I could use lots more practice. Just wished I had a ss coil for one of my tanks to see if its me or the ss setting on the xcubeII. It has three settings for tc one for each type of wire ss, ti, ni200. Just wondering if it isn't that or just my ineffective coil making.
 

mach1ne

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@advancedvapesupply thanks for the tips. i have only had good results using spaced, but they still kick out on me sometimes. i used twisted wire last time...maybe theres hot spots in my twists (hand twisted). ill give it another shot with a contact coil thats not twisted and see what happens.
 

f1r3b1rd

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thank you for the reply yeah does match up on steam engine. But I didn't think the ohms needed to be at .15 for tc. Hadn't read either way anywhere saying it couldn't be more but like I said I'm a newby and Just learning everything. Who knows maybe tc does have to be .15 won't hurt to try. I did make another set of coils and spaced these .30 on ohms this time and did same thing. Did check ramp up on both coils and were almost identical. Used a screw as the wrap base this time cool trick learned on a tutorial. Liked the .15 tc coils but was just trying different things. Put my crown on it with a crown .15 tc coil and it worked fine but this was the ni200 coils don't have any ss ones.
different metals have different characteristics in relation to heat and resistance.
stainless steel has a lower change in resistance per mass. so it takes more mass for the change to be high enough to accurately regulate.
also, ni200 is almost non resistive hence it is a type of NR. it works so well in tc because it has a huge difference in resistance from cool to hot. where as SS does not have a huge difference making it more difficult to regulate properly. ive noticed between yihi and dna boards, that I get better results between 0.2 and 0.25. That is by no means anything set, just a trend that ive noticed.
In fact just last week I had a build that came in at 0.17 ohms and because it was such a low resistance and dual coil. it was difficult to ascertain the difference in resisitance.
I'm sorry if this rambles
but 0.17 at rest, may only climb to 0.21+- whereas 0.22 will probably climb to around 0.29. I'm making the numbers up, but hopefully that will make more sense.
 

ayersbj

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different metals have different characteristics in relation to heat and resistance.
stainless steel has a lower change in resistance per mass. so it takes more mass for the change to be high enough to accurately regulate.
also, ni200 is almost non resistive hence it is a type of NR. it works so well in tc because it has a huge difference in resistance from cool to hot. where as SS does not have a huge difference making it more difficult to regulate properly. ive noticed between yihi and dna boards, that I get better results between 0.2 and 0.25. That is by no means anything set, just a trend that ive noticed.
In fact just last week I had a build that came in at 0.17 ohms and because it was such a low resistance and dual coil. it was difficult to ascertain the difference in resisitance.
I'm sorry if this rambles
but 0.17 at rest, may only climb to 0.21+- whereas 0.22 will probably climb to around 0.29. I'm making the numbers up, but hopefully that will make more sense.
Yes it does. Also gives me a clue as to what may be reason its dropping like that. Poor coil craftsmanship on my part lol. But like I said new to this and will keep playing and trying. Really like the hobbyist side just damn too many things wanna try at once. Ty again for the help.
 

advancedvapesupply

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different metals have different characteristics in relation to heat and resistance.
stainless steel has a lower change in resistance per mass. so it takes more mass for the change to be high enough to accurately regulate.
also, ni200 is almost non resistive hence it is a type of NR. it works so well in tc because it has a huge difference in resistance from cool to hot. where as SS does not have a huge difference making it more difficult to regulate properly. ive noticed between yihi and dna boards, that I get better results between 0.2 and 0.25. That is by no means anything set, just a trend that ive noticed.
In fact just last week I had a build that came in at 0.17 ohms and because it was such a low resistance and dual coil. it was difficult to ascertain the difference in resisitance.
I'm sorry if this rambles
but 0.17 at rest, may only climb to 0.21+- whereas 0.22 will probably climb to around 0.29. I'm making the numbers up, but hopefully that will make more sense.
This is true, but it really depends on the coil. Our 316L vertebraid reads *very* low resistance wise, but acts like a wire at a higher resistance because it's six wires braided, not twisted. So while 8 wraps at 3mm dual coil reads at around .12-.14, it jumps quite a bit more under heat than a solid wire of he same resistance would. If that makes sense. At least my personal observations on this.

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advancedvapesupply

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There's some complexity to TC with SS, whether it vertebraid, clapton, normal wire, etc because of that shallow tcr curve. But as you know f1r3, it can be done :D

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f1r3b1rd

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This is true, but it really depends on the coil. Our 316L vertebraid reads *very* low resistance wise, but acts like a wire at a higher resistance because it's six wires braided, not twisted. So while 8 wraps at 3mm dual coil reads at around .12-.14, it jumps quite a bit more under heat than a solid wire of he same resistance would. If that makes sense. At least my personal observations on this.

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roger that, because of the larger mass used I should have quantified, I was using numbers off of microcoils. I was trying to help illustrate the mass:resistnce ratio.

that's really the trick, having enough mass for the resistance to be more measurable for the board.
 

advancedvapesupply

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Yes it does. Also gives me a clue as to what may be reason its dropping like that. Poor coil craftsmanship on my part lol. But like I said new to this and will keep playing and trying. Really like the hobbyist side just damn too many things wanna try at once. Ty again for the help.
Don't give up! Just let us know if you have any more questions as you build. I love talking SS builds :D

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RCressler

Member For 4 Years
My x cube II was dropping out of tc mode as well with a Freemax Stares Pro. Found that the coil had shorted out. Haven't done any coil builds myself yet, so I'm unsure as to what exactly constitutes a short. Something to look into?

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ayersbj

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My x cube II was dropping out of tc mode as well with a Freemax Stares Pro. Found that the coil had shorted out. Haven't done any coil builds myself yet, so I'm unsure as to what exactly constitutes a short. Something to look into?

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Not a short I don't think. Just think its getting so hot that it is dropping out as a safety measure. After it drops out of tc and goes to watts I let it run like that and has no problems. But ty. Made a couple coils and they shorted out and what comes up is check atomizer. Learned hard way not to try to cram as much wick in the coil beacuse the wire is so soft.
 

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