How do you apply the object transform so that scaling the object on a single axis actually scales along the correct axis? I am trying to scale an object along the Y Axis (flipping it by -1) but I am having trouble. When I scale it by Y, it seems to be a semi-arbitrary axis. The 3D cursor shows that the object's orientation is not aligned with the world, but I want to scale it on the world's Y Axis. I've tried clearing and applying rotation but it doesn't seem to be doing what I expect. I would think that clear rotation would be what I'm looking for, but it doesn't seem to work. I want the object to stay in the same exact world location but I want its rotation to be 0,0,0. How can I zero the object's rotation without affecting its actual position/rotation?

Thanks,
Warren
Please try this : in Object mode, hit Ctrl + A, in resulting menu select Rotation



Its all zero now, I hope it help you :) best of luck