If you select Align to part geometry on the Part Program Zero page of the Stock wizard, the Pick Initial Setup Z Direction page is displayed:
Click one of the buttons to specify the Setup's Z direction using the method listed.
Click Next and the Pick Initial Setup X Direction page is displayed.
Click one of the buttons to specify the Setup's X direction using one of the methods listed.
Click Next and the Pick Setup XYZ Location page is displayed:
If you are using the center of a revolved surface, you can click Opposite End to create the Setup at the other end of the cylinder.
Click Finish.