Need MAYA help--Extrude Polygon Face problem

[mikestrati]

So, I am using the "Extrude Face" tool and the Y direction seems to be messing up. For instance, let's say I were to make a spaceship with wings out of a normal polygon cube. Well, obviously I would want those wings to be symetrical so when I use the "Extrude Face" tool I make sure that I select TWO opposite faces on the cube. So, I select two faces, choose "extrude Face" and start extruding. Well when I extrude in the X or Z direction BOTH SIDES move in the direction that I am pulling or pushing. However, when I go in the Y direction I PULL ONE WAY and the other selected face goes in the COMPLETELY INVERSE DIRECTION. I know the answer to this is something simple b/c I've had it happen before...only before I was in a classroom and could ask a prof how to fix it. Anybody know what needs tweaking?

[joojaa]

The normals of the object on the other side are flipped! so their normal points the other way around. You should allways chek to se that yoru nrmals are actualy conformed and pointing in the same logical direction.

Personaly id do a history edit trick instead of doing as yu describe.

[drblacksnake]

things that might help are
a) turn off doubleSided before extrude to see whichwards normals are pointing.
extrudeFaceTool have global mode swich (circle aside manipulator) which You can use for such problematic places. In Your case go to global mode, do scale and move.