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  • For people who have the same problem. The carriage which holds the nozzle was slanted. so it will raise when going to the right. I just had to tighten a bolt at the left motor. So the left rod will spin again. And hold the carriage horizontal.

  • I had the same problem. The carriage which holds the nozzle was slanted. so it will raise when going to the right. I just had to tighten a bolt at the left motor. So the left rod will spin again. And hold the carriage horizontal.