Protank MicroCoil Discussion!!

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MacTechVpr

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Derived from the thread New Joyetech 20watt eGrip for reference here.

With a little help from MacTechVpr and Cigatron....I came up with a jig to make some coils and it worked GREAT !!
2.4mm brazing rod and a block of wood... 28ga @ 9 wraps should be approx. 1.5ohm counting legs.
Thanks guys, now to try one out ;)

408035-new-joyetech-20watt-egrip-coil-jig.jpg
408036-new-joyetech-20watt-egrip-first-coils.jpg

I think that's a great start on your hand made jig. Can't see how you secured the starting lead as that pic won't expand. But good job.

The main thing we want to shoot for is "sticky", or adhesion. A true microcoil will oxidize as a unit much better than anything short of that. Lot of folks winding on a lot of things here on ECF without any idea what the goal is. A tensioned microcoil wants to be a coil. In a t.m.c. you've infused enough energy through the strain for the wire to continue to pull in on itself once that pressure on the wire is relaxed. If you don't get to that particular point of stretching the wire you may impart form; that is; you merely added enough energy to the wire for it to hold its shape. Although if not enough to get the wire as close together as the two surfaces may be forced, it will not be enough to keep them pulling in on each other. In other words, more than enough to get 'em holdin' hands but not shoulder to shoulder. So not quite a truly functional microcoil but a close contact coil. What we would have called a short before the microcoil.

:D

That's the ticket SW. If we get that basic idea we can make a t.m.c. with any instrument that helps us apply strain. Some I've seen being sold won't. Others won't let you do it consistently. Either of those will leave the potential for hotspots or irregular distribution of heat across the wire and/or leads. All things that mess up the vape, waste energy, juice and a good time. They may look pretty but might as well hand wind it 'cause the results could be just as bad and maybe even worse if too much strain was applied at just the wrong places. Then your vape may end up tasting hot, dry and nasty like a loose connection.


Symmetry is all about equality. And that means a consistent vape.

Good luck all. Just hail me by PM anytime if you need some input or answers or on the Tensioned Micro Coils. The next step. or Protank MicroCoil Discussion!! threads. I'll be trackin' here on Subtank attributes, bugs and developments.

Good luck all.

:)

p.s. Don't forget to de-wind the first couple'a three turns. They're usually not up to the same even strain as the rest.



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brookj1986

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Got the subtank mini today. Built a 8 wrap 29 gauge spaced tension coil using the cig-a-majig that cig sent me awhile back. (Roughly 2.2 mm ID). this after the stock 0.9 ohm coil was too warm for the gf. Have it on a 30 w istick... even at 9 watts, my gf was complaining. So this one came to 1.7 ohms. Wicked with rayon. Pure vape bliss. Cool and smooth. I'm slowly pumping the wattage up, but right now I'm on the 2 hole afc setting.

14 watts now. No dry hits yet. Pretty flavorful for a tank. I've been spoiled with my bottom feeders, so this is an adjustment. But flavors not bad at all. Shocked even. I'm gonna need to get me one of these!

Edit: just ordered myself one of these. Side note, 30 watts was a bad decision, but 18.5-22.5 was fan-flippin-tastic. I think my sweet spot was 18.5.
 
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cigatron

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Got the subtank mini today. Built a 8 wrap 29 gauge spaced tension coil using the cig-a-majig that cig sent me awhile back. (Roughly 2.2 mm ID). this after the stock 0.9 ohm coil was too warm for the gf. Have it on a 30 w istick... even at 9 watts, my gf was complaining. So this one came to 1.7 ohms. Wicked with rayon. Pure vape bliss. Cool and smooth. I'm slowly pumping the wattage up, but right now I'm on the 2 hole afc setting.

14 watts now. No dry hits yet. Pretty flavorful for a tank. I've been spoiled with my bottom feeders, so this is an adjustment. But flavors not bad at all. Shocked even. I'm gonna need to get me one of these!

Edit: just ordered myself one of these. Side note, 30 watts was a bad decision, but 18.5-22.5 was fan-flippin-tastic. I think my sweet spot was 18.5.

Thanks for the review Brooks, 18-20w on the two hole setting is where I'm at too. I have to make sure that my juice is a thin 50/50 viscosity or thinner to run there. 30 watts will go burny fast for me too.

To keep it cool and to peak the flavor I'm running a spaced coil too. Twisted 32awg.
 

brookj1986

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Thanks for the review Brooks, 18-20w on the two hole setting is where I'm at too. I have to make sure that my juice is a thin 50/50 viscosity or thinner to run there. 30 watts will go burny fast for me too.

To keep it cool and to peak the flavor I'm running a spaced coil too. Twisted 32awg.
I'll continue to mess around. I should have mine on Monday or Tuesday to go with the ipv mini 2 (up to 70 watts) I just ordered. Should work nicely.

I used 50/50 on my girlfriend's and it worked well.


Edit: really want to try my 80/20 mix, but can't see that working well.
 
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cigatron

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Waiting for my subtank mini. I think usps botched it. My other shipment delivered that transferred from the sort facility after my subtank, but subtank not taking as it for delivery or delivered. My ipv mini 70 watt is waiting though!

I'm glad you are getting two of them, hopefully from different lots, for comparison. Mine doesn't seem to provide the juice flow some are seeing with the rba. I dunno, maybe if I knew how to wind a descent coil and wick properly I could chain vape mine at 45w with max vg in freezing weather too! :D......er ugh sorry, feeling a little cynical tonight. Still kinda po'd about last nights game.

Can't wait for you're feedback brook. Mac?
 

brookj1986

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I'm glad you are getting two of them, hopefully from different lots, for comparison. Mine doesn't seem to provide the juice flow some are seeing with the rba. I dunno, maybe if I knew how to wind a descent coil and wick properly I could chain vape mine at 45w with max vg in freezing weather too! :D......er ugh sorry, feeling a little cynical tonight. Still kinda po'd about last nights game.

Can't wait for you're feedback brook. Mac?
Two different places I ordered from. I believe myvaporstore was the first one. Sweet - vapes the other. Both have the new peek insulator though. The clear one, not the whitish one.
 

MacTechVpr

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I'm glad you are getting two of them, hopefully from different lots, for comparison. Mine doesn't seem to provide the juice flow some are seeing with the rba. I dunno, maybe if I knew how to wind a descent coil and wick properly I could chain vape mine at 45w with max vg in freezing weather too! :D......er ugh sorry, feeling a little cynical tonight. Still kinda po'd about last nights game.

Can't wait for you're feedback brook. Mac?

Bro still tryin' to unstick my calipers since I gunked it up measuring those 6 mm coils.

:D

G'luck.

p.s. Haven't finished my research on the design yet but narrowing down an opening act from the final 4 candidates.
 

brookj1986

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Playing around with the ipv mini 2. Single battery that goes up to 70 watts (scary, I know). Only using 30 amp rated batteries. It's a limited edition from pioneer4you.

Unfortunately, I'm having difficulty finding exact specs like I can with the ipv mini. This is only dc-dc.

Regardless, max amp draw at 70 watts is 18.7 amps with a 0.2 ohm coil.

Looking forward to building my subtank mini when it arrives. Already determined that 3.3 volts is the true minimum voltage output despite what's advertised or displayed on the output reading. I'll be building in the 0.8-1.2 range.
 

dodari

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Somewhere way back in this thread on PT IIs there was a reference to a supplier that had the replacement atty insulators and O-rings for the Kanger PT II. In the months since then I had to replace my old LapTop and lost all my Bookmarks. Panic!!! Chaos Reigns!

Could someone please tell me the supplier(s) that have the supplies please? I've rebuilt my atties often enough that the insulators are in pretty awful shape and the O-rings where the tank screws down on the bottom atty-holder are getting pretty flimsy from wear.

Thank y'all very much. Love my PT IIs.
 

clnire

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Somewhere way back in this thread on PT IIs there was a reference to a supplier that had the replacement atty insulators and O-rings for the Kanger PT II. In the months since then I had to replace my old LapTop and lost all my Bookmarks. Panic!!! Chaos Reigns!

Could someone please tell me the supplier(s) that have the supplies please? I've rebuilt my atties often enough that the insulators are in pretty awful shape and the O-rings where the tank screws down on the bottom atty-holder are getting pretty flimsy from wear.

Thank y'all very much. Love my PT IIs.
Speaking of replacement grommets from Lightning Vapes, what is everyone's opinion between rubber or silicon? I know there was a mention somewhere here but can't seem to find it.
 

brookj1986

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Whitish ones on both the build deck and the bottom pos pin.
I think we've found your problem! That insulator has since been replaced with a much better, clear, peek insulator. The whitish one has been found to breakdown and make a nasty ayuss flavor. Pbusardo and riptrippers have both pointed this fact out in their subtank mini reviews.

That said, did a cig a majig with 27 gauge. Did 1 wrap too much. Didn't leave the cleanest looking spaced coil and was .2 ohms higher than my aim, but that's OK. Came to 1.1 ohm, not 0.9. But not bad for my first attempt on my own subtank.


I'm vaping comfortably at 20 watts with rayon wick. Not really trying to push it yet. Want to make sure it's wicking well and go thru a tank of creme Brulee from Nicoticket.

I'll prolly bump it to 22.5 with afc fully open.

Edit: 21.5 is the limit with current build. At that point, it begins to taste burny. I'm going to go for a straight tmc next build., 7 wrap with 27 gauge. Shooting for 0.8-0.9. Should likely improve, but I also want to try the stock coil for s & g's.

Also going to throw the whole dang thing in my ultrasonic cleaner for a couple runs and let that sumbeech air dry.
 
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cigatron

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I think we've found your problem! That insulator has since been replaced with a much better, clear, peek insulator. The whitish one has been found to breakdown and make a nasty ayuss flavor. Pbusardo and riptrippers have both pointed this fact out in their subtank mini reviews.

Haven't noticed an weird flavor with the adv juice I've been vaping for 3 months. Res is stable. Hard to say whether the color is clearish or whitish....it's kind of both. Looks like teflon....kinda of a translucent pale white.

My problem with the submini has been juice delivery from the tank to the wick tails. Dry hitting at 20w. Dripping one drop of juice on each side of atty, not on but next to the wick tails, and all is good for 1 or 2 pulls at up to 30w. Same thing if I primer puff real hard a few times. So the wick seems to transport the juice from the tails to the coil just fine. Once vacuum is reestablished in the tank juice flow diminishes, wattage has to be reduced to 18-20w and I have to pull pretty hard to stave off burny hits. As soon as I can hear the coil sizzling after a vape I know it's about to dry hit so....primer puff primer puff primer puff...and I'm back in business.

Will say this, got a replacement rba today and it performs a tiny bit better (23w) with the same build but still not up to my new found standards. Maybe my Lemo and Egrip w/rba just spoiled me.:ohmy: I mean, I used to be happy at 9w without dry hits.....but that's soooooo 2014:D
 
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