What should I do if I am using mesh coils since there is no mesh option?
Better use an ohm meter and meshure it. 😀
Pardon the pun, I couldn’t help myself. Ahem.
The resistance of mesh can’t be calculated like wire, because there are so many different types of it (different wire gauges used, different hole sizes/wire density, etc.), so the only practical way to do it, is to measure the resistance.
If you need to know the TCR, you can select a wire with the same material, and any thickness, in the Wire Wizard. The TCR will be the same regardless, as long as you don’t start mixing and matching materials.