Homebrew PCBs

> The thing that is holding me back from experimenting is I do not know
> enough about laser safety. It is hard enough to place components
> without having my retinas burned out.

I had to use a video camera to check to see if the diode was on or 
off.  Otherwise there is no way to tell whats going on because its 
invisible.  And when it turns a black piece of sponge into a pile of 
smoldering rubble is another way to tell if its on.