best kanthal to use ?

[DiscoDes]

Jun 19, 2014 12:47:04 GMT @scooby said:

Jun 19, 2014 12:00:42 GMT DiscoDes said:

So basically, get 0.3 kanthal for the best results!?

Also if you Microcoil as the coils are touching & the resistance will be lower.

Is that really true?

Not according to this calculator It varies, but by a tiny amount both less and more resistance depending on the spacing.

@scooby

You are right! I just did a little experiment and made a coil but did not heat and push the coils together and measured the resistance. I then heated it and made it into a micocoil and there was virtually no difference!

[ronaldo]

Jun 19, 2014 15:57:10 GMT DiscoDes said:

Jun 19, 2014 12:47:04 GMT @scooby said:

Is that really true?

Not according to this calculator It varies, but by a tiny amount both less and more resistance depending on the spacing.

@scooby

You are right! I just did a little experiment and made a coil but did not heat and push the coils together and measured the resistance. I then heated it and made it into a micocoil and there was virtually no difference!

in the name of science I have just done the same thing and the difference is miniscule so I would agree with DiscoDes

so that eliminates the need for multiple charts and will help newbys a lot I would think

[Super-Shiny]

The main thing is the length of the wire, so if you have loose coils and not tightly wrapped around your chosen drill bit...lets say a 2mm drill bit and you coil it loosely the wraps become over 2mm...hence the longer the wire.

[DiscoDes]

Jun 19, 2014 16:24:45 GMT Super-Shiny said:

The main thing is the length of the wire, so if you have loose coils and not tightly wrapped around your chosen drill bit...lets say a 2mm drill bit and you coil it loosely the wraps become over 2mm...hence the longer the wire.

I would have thought the coils would "short" together in a microcoil and lower he resistance but it seems that is not the case, even on a well heated microcoil, how interesting!

[Deleted]

Jun 19, 2014 16:24:45 GMT Super-Shiny said:

The main thing is the length of the wire, so if you have loose coils and not tightly wrapped around your chosen drill bit...lets say a 2mm drill bit and you coil it loosely the wraps become over 2mm...hence the longer the wire.

Yep but for the same length of wire it makes no difference whether they are micro coiled or spaced apart.

I was under the inpression like DiscoDes that the resistance would change if the coils were touching, that was until I played with the calculator.

Good to see it Proved in practice.

[ronaldo]

it makes for a easier life not having to dig through loads of charts

[intheblim]

I just did 11 wraps on 25 kanthal around a 2mm drill bit and im getting 2.65 ohm

[geordie_vaper]

do 8 wraps

[Deleted]

Jun 19, 2014 17:20:11 GMT intheblim said:

I just did 11 wraps on 25 kanthal around a 2mm drill bit and im getting 2.65 ohm

How much free length, ie the tails. I think It can make a difference.

Edit; or do 8 wraps

[Super-Shiny]

Jun 19, 2014 16:53:03 GMT @scooby said:

Jun 19, 2014 16:24:45 GMT Super-Shiny said:

The main thing is the length of the wire, so if you have loose coils and not tightly wrapped around your chosen drill bit...lets say a 2mm drill bit and you coil it loosely the wraps become over 2mm...hence the longer the wire.

Yep but for the same length of wire it makes no difference whether they are micro coiled or spaced apart.

I was under the inpression like DiscoDes that the resistance would change if the coils were touching, that was until I played with the calculator.

Good to see it Proved in practice.

Making the coil nice and tight and close together also gives a better all-round even heat distribution, doing it differently would make it just a basic coil.

[Super-Shiny]

Forgot to add that chart i made is not a guide, it's just a bit of guidance nothing else.

[Super-Shiny]

And another thing i forgot to add microcoils have less of a chance for hot spots.

[lairey]

Jun 19, 2014 17:36:54 GMT Super-Shiny said:

And another thing i forgot to add microcoils have less of a chance for hot spots.

And they last longer and because they are sturdier, re-wicking them is much much easier 

[ronaldo]

and it works and works well

[Super-Shiny]

Jun 19, 2014 17:40:45 GMT lairey said:

Jun 19, 2014 17:36:54 GMT Super-Shiny said:

And another thing i forgot to add microcoils have less of a chance for hot spots.

And they last longer and because they are sturdier, re-wicking them is much much easier 

I was gonna mention that but thought i ain't gonna add  "And another thing bla bla bla" getting bored of saying it