Try a print with the nozzle size set at 0.35 mm. If it is, but you're set up for 0.5, you're going to have problems.
Type: Posts; User: 3dkarma
Try a print with the nozzle size set at 0.35 mm. If it is, but you're set up for 0.5, you're going to have problems.
Your extruder is definitely skipping steps. You might be printing at too low a temperature, or too quickly. Temperature and speed are the two parameters I'd play with initially.