kicad-developers team mailing list archive

["Brian F. G. Bidulock" <bidulock@xxxxxxxxxxx>]

Dick,

On Fri, 30 Dec 2011, Dick Hollenbeck wrote:

> Hi Alexander,
> 
> It would have been nice to explain your strategy and why you chose this over possible
> other alternatives.
> 
> Can you pllease explain:
> 
> What is width correction?
> 
> Why do you need it?  That is, what is wrong with the original width that it needs
> "correction"?
> 
> Why is the original width wrong?
> 
> Thank you very much,
> 
> Dick

The correction is for etch factor.  PS is the final plotting
stage in toner transfer method.   The PS image will be tranfered
to the board directly as an etch resist.  Widths of tracks and
vias must, therefore, be "corrected" for etch factor.

--brian

-- 
Brian F. G. Bidulock    � The reasonable man adapts himself to the �
bidulock@xxxxxxxxxxx    � world; the unreasonable one persists in  �
http://www.openss7.org/ � trying  to adapt the  world  to himself. �
                        � Therefore  all  progress  depends on the �
                        � unreasonable man. -- George Bernard Shaw �