Homebrew PCBs

I don't know who recommended EDDING 404 markers but I must say thank you 
for the suggestion.
The EDDING 404 most definitely can draw SOIC pads and do toner transfer 
repairs.

So I would conclude that EDDING 404 is by far my first choice for an 
acid resist pen now.


I always grab some stray pens..and this time a crayon... to check for 
acid resistance.
BIC INTENSITY FINE
and
LA PEN
both just washed right off the copper.

Crayon barely worked.... and crudded up the acid bath.


after toner transfer:
http://www.learnmorsecode.com/pic/line/IMG_5153.JPG


after etch:
http://www.learnmorsecode.com/pic/line/IMG_5154.JPG


shiny copper traces:
http://www.learnmorsecode.com/pic/line/IMG_5156a.JPG


http://www.learnmorsecode.com/pic/line/index.html