Homebrew PCBs

If you were looking for "further study" suggestions, I would try first sanding the FR4 to a mirror finish and then scuffing it up: the "weave" of the fibreglass def. affects pressure and therefore adhesion. (But, OTOH, you'd probably get very different thicknesses and therefore etch rates ...)

I know I'd like to see that.

PG

On 21/11/2011, at 4:30 AM, DJ Delorie wrote:

> 
> "Jeff Heiss" <jeff.heiss@...> writes:
> > Can you explain what you mean by scuff? Are you referring to using
> > the green Scotch Brite pads?
> 
> Yes, I mean use some sort of abrasive to scratch up the surface enough
> to provide mechanical grip. Green scrubbies are the usual tool, but a
> suitably coarse sandpaper grit (i.e. not 2000 ;) would do as well.
>