Homebrew PCBs

On 28/04/2010 15:17, andrewmv@... wrote:
> I'm often finding that my toner transfer boards are ALMOST usable, but have a few trace breaks that need to be touched up by hand before etching.
>
> I've seen it said several places that ordinary Sharpie markers make suitable resist-ink for this purpose (I actually remember buying an old Radio Shack home PCB kit that came with a Sharpie and called it a "resist ink pen").
>
> I recently tried this using a Sharpie-brand "ultra fine-point, super-permanent ink" pen, but the FeCl ate right thought the ink.
>
> Has anybody had lucks using Sharpies as resist-ink?  Are there any recommendations on something better?


Staedtler makes very good ones. I used to use them.

Leon
-- 
Leon Heller
G1HSM