Strange development. Having put it back together, it's now running even worse. I say strange as I barely did anything. All I did was decouple the motor, remove the top part of the carriage and then begin to remove a few other screws until I realised it was going to take too long. Then I put it all back together...

I've tried coupling the motor again a few times but it's not helping. I also took the carriage off and am running it like that but the problem is still there...I'm not really sure how this is happening but it's definitely struggling in that same place. The place it gets stuck