Homebrew PCBs

At 08:22 07/05/15, Digest Number 2184 wrote:
>     Posted by: "kevinmwolf@..." kevinmwolf@... kevinmwolf288
>     Date: Mon May 14, 2007 11:52 pm ((PDT))
>
>I'm sorry- But what exactly is FR4??

It stands for "Fire Resistant grade 4", or something like that
and it is the common name for the fibreglass board in high-
quality copper-clad printed circuit board.

It's the green (usually) stuff that is very strong but tough to
cut, blunts HSSteel drills quickly and makes nasty dust.

I guess that's probably all you need to know, but if you want
technical detail you now have enough info to Google it.


Regards, LenW