.30 gauge Kanthal

[SingedVapor]

So I went to my local b&m today and bought some Kanthal. After I left i discovered it was .30 instead of .28 that I'm used. It feels so flimsy compared to what I'm used to. How do I build with this? It sounds like a stupid question but I'm a bit confused


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[mvroman]

Wrap it around a round object to make a coil.

It's really not that bad, I find 7 wraps around my rda screw driver is about perfect. It's just a tad bigger than a 1/8 drillbit.

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[SingedVapor]

Nono I don't mean that I'm inexperienced building coils. I've been doing this for a while, I just meant

Ok say I do 10 wraps of 28 gauge

Would I have to do more or less wraps to equal the same ohm that I'm used to with the 28 gauge


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[mvroman]

Less. The higher the gauge the more resistance per inch. I couldn't tell you exact numbers but just play around with it and I'm sure you will find something you like. 30g is nice for when you need to do small coils but keep a higher resistance.

And I was JK, totally not implying you don't know how to rebuild lol.

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[Halcyon2501]

I've been using this spreadsheet to determine how I should wrap my coils for a long time. I don't remember where I got it (I think it was here), but you fill in all the orange cells (wire gauge, diameter of the form you're wrapping around, # of wraps, etc.) and it will tell you what resistance the resulting coil will be. I've always tested the results on an Ohm meter, and found it to be quite accurate.

 

[Ryedan]

Here's a online coil calculator that I know is is pretty accurate.

Good luck with it

 

[Bunnykiller]

get a small drill, some wire clothes hanger make a small loop of the clothes hanger and insert into drill, take about 3 feet of 30 gauge and run it thru the loop on the drill, hold both ends of 30 gauge ( you will have approximately 1.5 feet now of double 30). Hold the loose ends firmly keeping tension on the double wire set, turn on drill untill the wire is twisted up nicely into a "single" wire....

 

[Bunnykiller]

Nono I don't mean that I'm inexperienced building coils. I've been doing this for a while, I just meant

Ok say I do 10 wraps of 28 gauge

Would I have to do more or less wraps to equal the same ohm that I'm used to with the 28 gauge


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less wraps since the 30 gauge has more resistance per inch ( probably 8 wraps)

 

[bosun]

Kanthal A-1 Wire Specs: (Ohms Per Inch)
•28 AWG- 0.439 Ohms/in, 0.0508 Diameter (in.)
•30 AWG- 0.696 Ohms/in, 0.0100 Diameter (in.)
•32 AWG- 1.091 Ohms/in, 0.0080 Diameter (in.)
•33 AWG- 1.383 Ohms/in, 0.0071 Diameter (in.)
•34 AWG- 1.758 Ohms/in, 0.0063 Diameter (in.)