oblique sketch

[leggera]

Hello.

I am trying to do a sketch on a piece, but when I select sketch and click on the face the axle system puts me obliquely.
the sketch I would like to do so to have the triad placed so we say " straight".

How come he does that?

Thank you.

 

[Tarkus]

Don't do the sketch directly on the face of the piece, try to create a plan first on the face of the piece and do the sketch there.
to me solve the problem.... .