rotate around axis

Support Animation and Rigging
1

Hi
my inclined knob rotates like drunk. I guess I need to align something?
Thanks for help

Attachments

Screenshot from 2018-04-25 09-20-48.png1680×1050 173 KB

2
  1. Explain what you want to achieve.
  2. Explain what the current results are and why they are unacceptable to you.
  3. Post a .blend file.