If you have a Cobblebot and noticed the LCD Controller knob binds up and the bracket really doesn't fit correctly here are a couple of tricks to make it better.
Give the knob some clearance
Relocate the speaker
You can desolder and move the speaker to the back of the unit so the plate can rest lower on the controller. This also gives more clearance to the knob so you don't have to lift it as far. Take care not to reverse the polarity of the speaker.
This is how my bracket looks now, and the knob turns and can be depressed easily without binding: