Twisted Coils

[T0mmy1977]

Until the past day or so I have only built single strand coils and parallel coils. Now I am trying twisted coils. It was surprisingly easy to twist them with a drill. My problem is apparently wrapping them. I used Steam Engine to calculate the desired build I wanted, dual coil, 2 strands of twisted 26 g kanthal per coil, 2.4 mm ID for a resistance of about .2 ohms. On the ohm meter it read about .4 ohms, but when I pinched the coils with my fingers it read about .2 ohms. Am I not wrapping them tight enough? Does each coil need to be touching? Please point me to where I am going wrong. Thanks

 

[Ken1979]

Once you place then on your deck and heat them and pinch them with tweezers to get them right and where you want them the ohms should check out where you want them

 

[93gc40]

Sounds more like a loose post/screw. pinching should not affect ohm. twisted wire can short on itself a bit, pulse that out.

FWIW I twist my wire by hand to 1mm-3mm pitch, Current coil is 6wraps of 31kanthal/32nichrome at a 2mm twist pitch, next coil will be 5 or 6wraps and will tighten twist to 1mm, for 1-1.2ohms

 

[T0mmy1977]

Sounds more like a loose post/screw. pinching should not affect ohm. twisted wire can short on itself a bit, pulse that out.

FWIW I twist my wire by hand to 1mm-3mm pitch, Current coil is 6wraps of 31kanthal/32nichrome at a 2mm twist pitch, next coil will be 5 or 6wraps and will tighten twist to 1mm, for 1-1.2ohms

Hopefully this is all it is. Will give it another go tomorrow.

 

[T0mmy1977]

I wasn't taking into account Twist Pitch. I plugged 1 mm in there and my twisted coils are matching Steam Engine now.

 

[T0mmy1977]

Now that I have tried these twisted coils I like them. They are supposed to have a better vape than dual parallels, correct?

 

[93gc40]

Now that I have tried these twisted coils I like them. They are supposed to have a better vape than dual parallels, correct?

Better...IDK. Different, yes.

 

[TrikStari]

Now that I have tried these twisted coils I like them. They are supposed to have a better vape than dual parallels, correct?

I found them to be immensely better than standard single wire coils. Much denser vapor production and better flavor as well.

It all depends on what you are looking for. I wanted something that would hit "harder" than standard single wire coils, but not be quite so "hot" as I found high wattage single wire coils to be.

 

[rolf]

I found them to be immensely better than standard single wire coils. Much denser vapor production and better flavor as well.

It all depends on what you are looking for. I wanted something that would hit "harder" than standard single wire coils, but not be quite so "hot" as I found high wattage single wire coils to be.

sure agree with that
using 4 wire twisted 34 g around 2.5 mm .7 to 8 wraps
getting a nice vape at 18 watts ! cooler vape and dense to
comes to 1.3 to 1.5 ohms .single coil in the aromamizer rdta.

 

[TrikStari]

sure agree with that
using 4 wire twisted 34 g around 2.5 mm .7 to 8 wraps
getting a nice vape at 18 watts ! cooler vape and dense to
comes to 1.3 to 1.5 ohms .single coil in the aromamizer rdta.

I forgot to mention that I have found one downside to twisted coils. Mainly that they seem to have a propensity for tearing your wicking material when you are trying to wick the coil. Maybe I'm twisting my coils too much, but I find this is be a rather annoying issue. It seems to get worse, the smaller the coil diameter.

Am I the only one who has experienced this issue? They still vape better than standard coils though.

 

[rolf]

I forgot to mention that I have found one downside to twisted coils. Mainly that they seem to have a propensity for tearing your wicking material when you are trying to wick the coil. Maybe I'm twisting my coils too much, but I find this is be a rather annoying issue. It seems to get worse, the smaller the coil diameter.

Am I the only one who has experienced this issue? They still vape better than standard coils though.

hi trikstari
jes the wicking has more resistance when pulling it throw
depending on what you use . like cotton from certain beauty products ..they have no direction . others like the f5 wicking cotton has . also using rayon fiber has no direction in it .so twisting it into a round string when feeding it in . using rayon you want it fairly tight in the coil anyhow. then trim some of the sides before pushing into the deck.
ther were some better explanations than myne ..so read some more and experiment . just rebuild with a 4 strand 34g k a1 twisted and used a rayon sausage lol.
even the coil is a little flimsy I had no problem ..twisting while pulled it through.

 

[TrikStari]

hi trikstari
jes the wicking has more resistance when pulling it throw
depending on what you use . like cotton from certain beauty products ..they have no direction . others like the f5 wicking cotton has . also using rayon fiber has no direction in it .so twisting it into a round string when feeding it in . using rayon you want it fairly tight in the coil anyhow. then trim some of the sides before pushing into the deck.
ther were some better explanations than myne ..so read some more and experiment . just rebuild with a 4 strand 34g k a1 twisted and used a rayon sausage lol.
even the coil is a little flimsy I had no problem ..twisting while pulled it through.

I'm using some "Organic Cotton Puff" from Japan that I ordered on Amazon. Not sure of the brand, since everything on the pack is in Japanese. It had some good reviews, and it was a MASSIVE bag for cheap. It's "pads" not cotton balls or anything. I've found that peeling off the two outer layers makes the cotton fluffier and thus, better as a wick.

 

[rolf]

I'm using some "Organic Cotton Puff" from Japan that I ordered on Amazon. Not sure of the brand, since everything on the pack is in Japanese. It had some good reviews, and it was a MASSIVE bag for cheap. It's "pads" not cotton balls or anything. I've found that peeling off the two outer layers makes the cotton fluffier and thus, better as a wick.

jes trikstari
that cotton works pretty good . play with the amount a little ..you can twist it a liitle when pulling it through the coil . that helps. you get a feeling for it .
also there are many videos on you tube one I remember is called the scotch roll I think . wen I used it I only peeled one side of .still worked out ok. lighly rolled with the soft side out. have fun

 

[TrikStari]

jes trikstari
that cotton works pretty good . play with the amount a little ..you can twist it a liitle when pulling it through the coil . that helps. you get a feeling for it .
also there are many videos on you tube one I remember is called the scotch roll I think . wen I used it I only peeled one side of .still worked out ok. lighly rolled with the soft side out. have fun

The only thing that I've found works reliably to prevent leaking, is to put the wick through the coil, and then pack it down into the juice channels. Then, trim it "close" leaving a bit extra. Wet the ends with juice, pack again, then pull the ends out and trim them, then repack into the channels and put the chimney on.

Seems to work without burning or leaking.