Which wire

[diagrammatiks]

10 wraps. You crazy man.

 

[Zakillah]

10 wraps. You crazy man.

Why?
My standard build is 0,25mm parallel 10 to 12 wraps. Thats 20 to 24 wraps total. I dont see the problem or whats crazy about it?

 

[DaveP]

Not really, only coil size does.
If you keep the diameter and length of the coil exactly the same; it does not matter which gauge you use; the coil will always have the same (or very close to it) heat flux.

Easy example would be, lets say 0,25 mm vs 0,5 mm. You wrap a contact coil of the same size with both wires. You´ll need exactly double the wraps from the 0,25mm wire compared to the 0,5mm wire to achieve this.
Heat flux is calculated by total surface area. Surface area of the total coil wire is calculated by π * wire diameter * lengths of wire. π will, of course, always stay the same.
So lets say you use 20cm of the 0,25mm wire and 10cm of the 0,5mm; you´ll get π * 0,25 * 20 vs π * 0,5 * 10.

Its the same.

I understand that and I may have stated it too simply. Two coils of the same diameter and number of turns using the same wire gauge and type will have similar properties.

I should have said "Wire gauge determines heat flux for a given number of turns with a given wire gauge on a coil of given diameter".

I use Steam Engine to calculate the parameters. Metal mass is the key. I get it.