ACCEPTED SOLUTION
Accepted Solutions
Essentially, the feature "BAR" is made by extruding a sketch made on the plane "XY_ROTATED".
The "XY_ROTATED" plane is defined as going through axis "X" and at an angle to plane "XY".
For your 2nd pattern instance, this angle will be 17degrees.
The plane "YZ_ROTATED" is defined by going through axis "Y" and at an angle to plane "YZ"
The angle of "YZ_ROTATED" plane is the other control angle - in your case 51degrees.
To be able to orient the sketch, I made plane "NEW_YZ" - defined as going through the axis "NEW_Z" and perpendicular to plane "XY_ROTATED".
The axis "NEW_Z" is the intersection of planes "XY_ROTATED" and "YZ_ROTATED".
Notice that if the "XY_ROTATED" plane is at 0 angle, then "NEW_YZ" is coincident with the plane "YZ_ROTATED".
Can you open the file I attached? Then "edit" the two planes to see it in action:
If you have a dimension within the feature for rotation about one of the axes, then, create an axis pattern about the other axis. Within the axis pattern you can click on the dimension tab, click within direction one, select the dimension for rotation about the other axis and type in the increment.
i tried as you told me dut i have not beem succesful... Could you detail more step by step your explanation ?
In order to better explain my problem my piece is this one 
And i need both rotations : 
I'm sorry, I can't understand at all.
Can you sketch a picture?
This is what I guessed you are after:
each spike is incrementally re-oriented by simultaneous 17.39° x-rotation and 51.13° y-rotation (about the default coordinate system)
(creo 3.0 example attached)
This is not exactly what i'm searching for.
Look, i did the piece like i want it :
But i did it "manually", i would like to know how to create the second element with the pattern tool. The first element is that one i showed you in my second message.
The second element is like the first one but with a x-rotation and a y-rotation.
thank you for your disponibility,
Léo
I see. You want the rotation to be about the "global" y axis (green) and then about the "global" x axis (red):
One method is by modeling your geometry such that it is controlled by these two angles. Then during pattern definition, you select "dimension" pattern and then you select both of these dimensions (with the CTRL key) to collect them into the pattern increment definition:
I don't know off the top of my head how to do this with just the "axis" type of pattern.
You can examine the attached file for more clarification.
Essentially, the feature "BAR" is made by extruding a sketch made on the plane "XY_ROTATED".
The "XY_ROTATED" plane is defined as going through axis "X" and at an angle to plane "XY".
For your 2nd pattern instance, this angle will be 17degrees.
The plane "YZ_ROTATED" is defined by going through axis "Y" and at an angle to plane "YZ"
The angle of "YZ_ROTATED" plane is the other control angle - in your case 51degrees.
To be able to orient the sketch, I made plane "NEW_YZ" - defined as going through the axis "NEW_Z" and perpendicular to plane "XY_ROTATED".
The axis "NEW_Z" is the intersection of planes "XY_ROTATED" and "YZ_ROTATED".
Notice that if the "XY_ROTATED" plane is at 0 angle, then "NEW_YZ" is coincident with the plane "YZ_ROTATED".
Can you open the file I attached? Then "edit" the two planes to see it in action:
Yeah, I tried to used the coordinate system rotation angles, and it wasn't working.
The way the part is shown by the o.p., the rotation is to happen first about the default y (green axis) and then about the default x (red axis).
Took me a while to figure out to figure out that I was not being aware of the order of rotations when offset coordinate system is transformed (first x, then y, then z rotation are applied to generate the new csys):
