Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan" 
<stefan_trethan@...> wrote:
>
> A mil is 0.001 inch or 0.0254mm.
> 
> IMO it is a real problem, now they prefer to go metric with pin 
> spacings,  
> it is a nightmare.
> If only _some people_ had accepted metric measurements ASAP we might 
> not  
> have to deal with the mess now.
> 
> My PCB software has nm resolution, but it is still a pain with grids 
> and  
> routing.
> 
> ST

I found this out the first time I did some quick PCBs for a friend. I 
thought that it sounded like very thick traces, I had assumed a 'mil' 
meant a 'millimeter'. Using 'thou' would be a lot less confusing, but 
it's common terminology so won't be likely to change anytime soon.