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Would like to have different preferences for drills and grid and ...

plocher

I find that the Grid preferences setting of (inch, mil, mm, mic) is used not just for "Grid", but for for everything except dimension lines.  This causes me to repeatedly switch the grid units between measurement systems many times in the development cycle as I select drills, widths and spacing.

 

My board house has drill sizes in mm, but (being a backward american :-) I'm more comfortable with a mil-based board layout grid and trace width.  For Library part creation, I fall back (forward?) to the metric system because that's what the data sheets all use, but Schematic layout is best done in imperial...

 

Suggestion:

Expand the Grid units selection mechanism along the lines already done for dimensions:  allow independent settings for Grid, Dimension, Drill, Width, Size and Spacing...

 

My personal use case would have

grid mil

dimension cm

width mil

drill mm

size mil

 

  -John

  • 0

    I think It's the best way to mix up units and to have a huge error risk !!!!

    Schematic already have a separate setting from broad, so you already can keep imperial unit for schematic. For routing, I suggest to choose mm or mil, (it's up to you) but to stick to your choice, and avoid to mix up unit in the same design, unless you like the risk ! Since we choose one system, ALL units must be the same for every dimension.

     

    That's only my opinion of course.