Homebrew PCBs

They say that WhiteOut works well, but I've never been able to get fine 
enough lines with it.  If it's only a couple of spots, you could try 
masking it off first.  For that matter, you could lay some tape down and 
cut away what you don't want masked with an Exacto knife.

Sharpies work, but you need to get a thick layer.  Dab at it to get the 
ink flowing.  This also make fine lines difficult.

Kerry


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?
>   


-- 
Kerry Wentworth
The Skunk Works
85 N Main St
Boscawen, NH 03303
603 753-8933