*GEM: A new RTA by MarkBugs

[Dudditz]

Maybe this helps


R

Yes I have seen this a few times now and have concluded those coils are touching, looks like a microcoil. That said, it seems as though some temp control devices must be able to handle touching coils better than others. For example I have built a few NI200 microcoils that work fine on the GEM and SX Mini M class however once I put the Gem on any of my other temp control devices it instantly goes to low resistance. I am trying to find a build that will work on my other temp control devices. I am guessing I need to go with a proper spaced coil to work on these devices which is why I am curious to what others are doing.

 

[Dudditz]

28g spaced ti .30ohm dna40 360f 16watts. super!!

what MM size coil is that and how many wraps?

 

[TheotherSteveS]

tiuching coils with Ni200 is a crapshoot. Spaced is generally the best bet although I would suggest trying spaced Ti as a far superior option!

 

[qorax]

tiuching coils with Ni200 is a crapshoot. Spaced is generally the best bet although I would suggest trying spaced Ti as a far superior option!

Nope. I find no difference between contact coils and spaced ones with my DNA40. Both vape equally, perform equally, both very satisfying.

 

[TheotherSteveS]

Nope. I find no difference between contact coils and spaced ones with my DNA40. Both vape equally, perform equally, both very satisfying.

But you aren't subject to the normal laws of nature! For us mortals, Ni200 touching coils can be a nightmare. There is no insulating oxide layer so microshorting between adjacent coils is, or at least can be, a problem!

 

[jazzvaper]

But you aren't subject to the normal laws of nature! For us mortals, Ni200 touching coils can be a nightmare. There is no insulating oxide layer so microshorting between adjacent coils is, or at least can be, a problem!

Much to my chagrin and based on experience I must agree with TheotherSteveS while disagreeing with Q.

I have been working with other wires where contact coils definitely work well but have not tried Ni 200 contacts, so far (DNA 200).

 

[drippaboi]

Update with a pic:

R

I cut a wedge shaped piece out of a rubber band and fed the point through the hole to thread the rubber through until it was in there good an tight and just trimmed it until it moved how I wanted. Works great and doesn't fall out

 

[TheotherSteveS]

I used a pice of 1.6mm thickness viton o-ring and it is pretty good. It is a tight fit and the viton is a little harder than silicone/rubber so it needs to be trimmed just so else the AFC ring gets a bit difficult to move. It works anyway and I doubt it will fall out any time soon!

 

[qorax]

Hmm, we were right. And UK sees the light

 

[TX Foilhead]

I've been perusing this thread every so often because I love my Challice so much. Finally pulled the trigger on a GEM and WAE tonight, it my first RTA. Been using a REO since the beginning of the summer and tend to build thing around .5 ohms but I don't do that very often and use RxW.

Any ideas about where I should start 1st? I've got plenty of wire 28g to 32g and all 3 sizes of RxW.

 

[sedge]

It will be sent built.

 

[drippaboi]

It will be sent built.

Now that's service

 

[TX Foilhead]

Thanks Sedge, I really appreciate that.

My only issue is I now have 6 Nuppin's, a Challice III and 3 REO's, I played around with the building things for about a month and now I haven't had to of so long that it's like I starting from scratch. From what I've read today and remember from watching this thread 28g around 2.5mm mandrel @ 1 ohm will work. Is there anything better to shoot for or can I just tweek the watts with that and make it work?

 

[sedge]

It's a regulated mod so you don't have to be too concerned with resistance. Frankly I prefer 27 or 26 gauge because it's a little sturdier, however the 26 gauge is a little thick for the screws in the gem, but it does work. I'll send some of each. I will also send some fiber freak.

 

[Phone Guy]

I decided against a gem, mainly because my wizard (dna30) hasn't been getting much use lately with all the other new vape toys.

I'm curious tho, I've seen many in the classifieds, more than I expected.

Without offending anyone, could someone maybe offer a guess about the resale of the gem? I'm guessing air flow?

 

[TheotherSteveS]

I decided against a gem, mainly because my wizard (dna30) hasn't been getting much use lately with all the other new vape toys.

I'm curious tho, I've seen many in the classifieds, more than I expected.

Without offending anyone, could someone maybe offer a guess about the resale of the gem? I'm guessing air flow?

Its a bit odd. I doubt its AF. I like quite an airy draw, bascially a M2Ler and, although the GEM is a little restricted, its a nice vape.

Its not perfect though. For TP builds I find the deck just a little too cramped to do what I want. I have also had (and am still having) problems with weird resistance issues, some of which appear to be related to the 510 screw but in ways I cant really understand. At the moment I have what should be (and was originally) a 0.19 ohm 26g Ti build in there that has suddenly decided to be 0.16. I suddenly started getting dry coil errors on the D2 and the R started jumping around all over the place. I unscrewed the 510 pin and cleaned it, replaced but then the R was a stable 0.16. Rock stable on sx mini, ipv d2 and significantly, the dicodes 2380 but nevertheless too low resulting in a anemic vape. Cranking up T just ends up with burning. Ive also had it reading far too high. That was with 24g. Problem went away with 26 so stayed with that. Obviously not a short in that case but it looked fine on the firing base and went haywire when assembled. All very strange and any ideas are welcome. I will rip it out later and try again but thats a monkeys-and-typewriters approach that wont tell me what the issue actually is or might be!

 

[Yozhik]

Its a bit odd. I doubt its AF. I like quite an airy draw, bascially a M2Ler and, although the GEM is a little restricted, its a nice vape.

Its not perfect though. For TP builds I find the deck just a little too cramped to do what I want. I have also had (and am still having) problems with weird resistance issues, some of which appear to be related to the 510 screw but in ways I cant really understand. At the moment I have what should be (and was originally) a 0.19 ohm 26g Ti build in there that has suddenly decided to be 0.16. I suddenly started getting dry coil errors on the D2 and the R started jumping around all over the place. I unscrewed the 510 pin and cleaned it, replaced but then the R was a stable 0.16. Rock stable on sx mini, ipv d2 and significantly, the dicodes 2380 but nevertheless too low resulting in a anemic vape. Cranking up T just ends up with burning. Ive also had it reading far too high. That was with 24g. Problem went away with 26 so stayed with that. Obviously not a short in that case but it looked fine on the firing base and went haywire when assembled. All very strange and any ideas are welcome. I will rip it out later and try again but thats a monkeys-and-typewriters approach that wont tell me what the issue actually is or might be!

Have you ran it through an ultrasonic cleaner? Also, how about 28 guage Ti?

 

[TheotherSteveS]

Have you ran it through an ultrasonic cleaner? Also, how about 28 guage Ti?

No cos I dont have one (yet). Great minds do think alike as 28g Ti is next on the list, closely followed by twisted 30 although that might cause more trouble than its worth! Even if it works, it doesnt explain the problem though...do you have any ideas?!?!

 

[Dudditz]

Its a bit odd. I doubt its AF. I like quite an airy draw, bascially a M2Ler and, although the GEM is a little restricted, its a nice vape.

Its not perfect though. For TP builds I find the deck just a little too cramped to do what I want. I have also had (and am still having) problems with weird resistance issues, some of which appear to be related to the 510 screw but in ways I cant really understand. At the moment I have what should be (and was originally) a 0.19 ohm 26g Ti build in there that has suddenly decided to be 0.16. I suddenly started getting dry coil errors on the D2 and the R started jumping around all over the place. I unscrewed the 510 pin and cleaned it, replaced but then the R was a stable 0.16. Rock stable on sx mini, ipv d2 and significantly, the dicodes 2380 but nevertheless too low resulting in a anemic vape. Cranking up T just ends up with burning. Ive also had it reading far too high. That was with 24g. Problem went away with 26 so stayed with that. Obviously not a short in that case but it looked fine on the firing base and went haywire when assembled. All very strange and any ideas are welcome. I will rip it out later and try again but thats a monkeys-and-typewriters approach that wont tell me what the issue actually is or might be!

I have been having similar results using Temp builds on my GEM using 28g NI200 6 wraps around 2.5mm mostly touching. I have tried spaced however the coils always end up touching the sides of the deck and if you raise it to much than its touching the top of the chamber. I am currently using the GEM on on a SX Mini M class. When Temp control works on the GEM its amazing, some of the best flavor I have experienced. The problem has been getting it to work consistent I am guessing my issues could be related to many of the coils touching due to lack of space as I have no issues with TC using spaced coils and the SX Mini M class using other RTA's. I will try out TI this week and see if that works any better. Also borrowing a VaporShark DNA40 from a friend to see if that has better luck with the NI200 micro-coils.

 

[TheotherSteveS]

I have been having similar results using Temp builds on my GEM using 28g NI200 6 wraps around 2.5mm mostly touching. I have tried spaced however the coils always end up touching the sides of the deck and if you raise it to much than its touching the top of the chamber. I am currently using the GEM on on a SX Mini M class. When Temp control works on the GEM its amazing, some of the best flavor I have experienced. The problem has been getting it to work consistent I am guessing my issues could be related to many of the coils touching due to lack of space as I have no issues with TC using spaced coils and the SX Mini M class using other RTA's. I will try out TI this week and see if that works any better. Also borrowing a VaporShark DNA40 from a friend to see if that has better luck with the NI200 micro-coils.

Ok, its not just me then! One thing to say is that the problems are independent of the mod..I have several (!) and dicodes/d2/sx-mini and DNA40s all do pretty much the same thing with this. One thing I will try is a pulsed-Ti microcoil and maybe a full-on dry burned NiFe30 microcoil. Failing that, I'll try a @qorax-style touching Ni200 just to see (of course that will be the one that works!!)....

Anyway, lets keep in touch about progress either here or by PM...!

cheers

steve