First of all, how do you export your layout to PDF in order to create the PCB using tone transfer method?
In the past I created one small PCB by doing the following: print > PDF format (scale=1). No problems.
However today I installed Eagle (5.11), tried to do the same but, after the PCB is created I found that I got a scaling problem in my hands. Headers don't fit in holes! I tried to export PDF with different (virtual) "printers" and, with SmartPDF I got the best result. However still doesn't fit perfectly with headers.
Thus, I tried "Cam Processor" with "layout2.cam", exported layout to an EPS file format and printed that. Now the holes fit perfectly.
How do you export layout to PDF when using tone transfer method?
Best Answer
I type in the command line of eagle.
DISPLAY NONE
DISPLAY BOTTOM PADS VIAS
EXPORT IMAGE C:\PathForImage\ImageName.PNG MONOCHROME 600
Then I do an invert in GIMP and print it. It will be 600 DPI and the PNG seem to print correctly onto my label backing wax paper that I iron onto the board.