Hi,
I've found out in the module editor that the pins in this package are
not spaced evenly.I've opened the file libcms.mod which is an
editable
text file.Under the entry for the PQFP208 module the line POS 5030 -
6100
indicates the centroid of pad 1, and so on for each pin.There needs
to
be a spacing of 0.02 inches (200) between pads.So for pin 2 the line
reads POS 4830 -6100 (5030-4830 = 200). From pin 3 the spacing varies.
I've created a small console C++ (standard template stuff) program to
calculate for me the correct numbers to replace in the libcms.mod
file.Problem is there are 208 pins to edit this way.
It is much easier editing this text file than using the module editor
to move the pads by hand.
If anyone could come up with a find and replace program to do the
work
it would be great.Even better would be a utility to place pins
automatically at a fixed distance on each module/pcb package.
Hope this info is useful.
David.
--- In kicad-users@..., "yajeed2000" <djsbriscoe@t...>
wrote:
Hi,
I am trying to print out several square 28 x 28 208 pin quad flat
packages using a standard laser printer.
However when printed the pads do not line correctly with actual
component pins.There is a small error in the spacing of the pins
that
is caused either by the printer (paper stretch)or in Kicad.
It would be useful if some kind of VERY SMALL offset adjustment (X
and
Y direction)could be introduced in the print dialog.
Alternatively could anyone suggest a way of correcting this error.
Thanks.
David
