Greetings, Robo C2 has been printing fine. Moved it to a new location in the workshop. x-axis movement is rough. Frame makes creaking noises during printing. Putting ear to frame while moving extruder in x-axis. Maybe rod is grinding against frame in upper-left front corner. Also notice the right y-axis belt is very loose compared to left y-axis belt. All rods appear to be in bearings. Teeth on all belts appear undamaged. Suggestions?