Homebrew PCBs

Jack Coats wrote:
>
> I wonder how using Micr toner then plating copper onto it instead of
> etching it off wold work?
>

Remember toner is a plastic and 'black stuff' mix so fused toner is likely to expose a high proportion of plastic. This would likely preclude plating copper but on the other hand it may protect the magnetic particles in MICR toner from etchant attack.