This could be a duplicate question, if so I do apologize for wasting your time. I did some research, but couldn't find the answer for my question. That's why I posted it here.
I've modeled an Archimedes screw for my undergraduate project. Now i want to incline the setup at an angle of about 30 degrees and add a rotation for this crew. but when I animate the rotation after re positioning, it does not rotate the way I want. It rotates around the global axis, but i want it to rotate around like a screw. what should i do for this ?