Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Gary" <chemelec@h...> wrote:
> 
> I'm using an Older HP 4L Printer.
> 
> And What I have found is If you want to print Two Drawings that Must 
> line up with each other, Print them One at a Time and Position them 
> so Both "Print in the Same Area of the page".
> 
> This way whatever Errors occurs in the First one,
> Should also Occur the Exact Same in the Second one.
> 
> Hope this Helps.........Gary

Yes, that's an important point.  I rotate one of the images 180
degrees for that very reason.  This especially important if you are
panelizing (multiple boards in a single image).

Its a good idea to print a test image to see where the distortions
are.  I use a copier so I just copied a piece of graph paper and found
some small distortion at one end of my copier.  I avoid that area.  

Also, humidity is an issue to consider since the paper can shrink when
subjected to the fuser heat.  You might try running the paper through
a blank print cycle to dry it but use it quickly before it reabsorbs
the moisture.