I'm working with the TF rubies, and having direction problems.

here is a paste from the online sketchup help:
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Notice that each axis has a solid line on one side of the origin point, and a dotted line on the other side:

Blue: the solid line points up; the dotted line points down.
Red: the solid line points east; the dotted line points west.
Green: the solid line points north; the dotted line points south.
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I've drawn a model based on these directions, but shop drawings from rubies have the directions turned 90deg(solid red line is north).

I wanted to see if I'm missing something before redoing stuff?
thanks,
-Mark.