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Hi all,

Does anyone know if it is possible to have the component position file done in metric format (rather than imperial)?
I am using fine-pitch connectors and my contract manufacturer mentioned that it would be easier and more accurate because their system apparently works better with metric inputs.

Thanks, Heiko

Kicad works in imperial internally, I think it's grid is 0.0001, might be
0.00001 I'm not 100% sure. So any metric output would be a simple
conversion.

I find it strange that a manufacturer cannot handle both formats, but if
it is really that important I would write a script to do the conversion
as needed.


Andy



On Wed, 11 Jul 2012 23:45:45 -0000
"oecherexpat" <schwede.alter@...> wrote:

Hi all,

Does anyone know if it is possible to have the component position file done in metric format (rather than imperial)?
I am using fine-pitch connectors and my contract manufacturer mentioned that it would be easier and more accurate because their system apparently works better with metric inputs.

Thanks, Heiko



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Yes, I simply ran it through Libreoffice and added 2 more columns with converted positions - is's simple factor after all.
Will see how it goes.

But I thought it might be possible in Kicad as it is possible to chose imperial/metric when creating Gerber files.

Cheers, Heiko

Currently, the only way to do so without external processing but only using KiCAD is getting the KiCAD sources, modify pcbnew/gen_modules_placefile.cpp and change the #if 1 into #if 0 so that the unit conversion would be hardcoded to be in millimeters.

Then you'll have to compile and install the compiled KiCAD.. I understand this is not optimal, but worked perfectly for me in real product production.

Hope this helps,

Fabio Varesano