Method 5: Perform Extruder CalibrationĬalibrate the extruder steps per millimeter to ensure it accurately feeds the expected amount of filament. If you notice any severe issues, you should consider replacing it with a new one. Any blockages can hinder the smooth flow of filament. If possible, you can remove it and inspect it more closely and ensure that the inside diameter of the tube is smooth and free from any obstructions, such as melted filament or debris. You can examine the entire length of the Bowden tube for any visible signs of wear or cracks as you pay attention to areas where the tube bends or enters fittings. Though this is not a common cause of under-extrusion, it’s important to take the time to check if it has any issues. Method 4: Inspect the Bowden Tube for Severe Wear and TierĪny wear or damage to the Bowden tube can affect impact filament flow, leading to under-extrusion issues. Consider using airtight containers or filament dry boxes to maintain optimal filament conditions. Impurities can also contribute to under-extrusion issues, so using a clean filament is essential.Īlso, properly store your filament in a dry and dust-free environment, as moisture absorption can affect the filament's properties. Also, make sure the filament spool is mounted correctly, allowing the filament to unwind smoothly.Īdditionally, you should ensure the filament you are using is of high quality as those of low quality might have irregularities in the diameter and even inconsistency in material composition. You can measure using a caliper or a filament gauge. It’s also important to ensure that the filament you are using matches the diameter of your nozzle. Inspect the filament for any tangles or knots that can cause resistance and affect the smooth flow of the material. Load the filament again to the extruder and see if it extrudes consistently. Wipe and dry the nozzle using a soft cloth, then reassemble it back into the hotend, ensuring it is properly seated and tightened.Ĥ. Then allow it to soak for a few minutes to loosen any clogs or residue that might be stacked.ģ. Soak the nozzle in a container with a cleaning solution like acetone. Heat the hotend to the normal printing temperature for your filament like we did above.Ģ. The above method should fix the issue, but you should consider removing it and soaking it in a cleaning substance if it doesn't. The cold pull successfully cleaned the nozzle if it had residue at the tip, but you can still repeat the process if more clogs are present. Inspect the filament and check if it has any signs of debris. The goal is to ensure that the filament has much contact with the nozzle walls to remove any debris as you pull it out.ħ. Apply a little pressure, then quickly pull the filament out of the hotend. Cool down the hotend until it reaches around 60-90C.Ħ.
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