Failure to extrude filament

Not extrusion of filament in a 3D printer can be caused by several issues. Here are some checks and solutions to address this issue:

GCODE VERIFICATION:

  • Make sure that the STL file used to generate the Gcode has no modeling defects, such as non-solid surfaces or geometry issues. Use 3D modeling software such as Blender or MeshLab to correct any defects in the model.

VERIFICATION OF SLICING PARAMETERS:

  • Control parameters in the slicing software, such as nozzle diameter, filament diameter, material flow, extrusion temperature, and E-steps per millimeter. Make sure they are configured correctly for your extruder and the type of filament you are using.

CHECKING THE OPERATION OF THE EXTRUDER:

  • Make sure the extruder power cord is securely connected to the extruder. If it is not properly connected, do so with the printer turned off.
  • Check that the hoses connecting the thread puller to the extruder are well connected and free of clogging or dirt. You can remove the hose and inspect it for any blockages or obstructions.
  • Make sure the filament is properly fed into the melting zone inside the nozzle. Check to see if the filament is stuck or caught inside the extruder.

CHECKING THE LEVELING OF THE BUILD BED:

  • Controls the leveling of the print bed. If the nozzle is too close to the flat, the filament may have difficulty coming out, causing the thread puller’s gear and motor to become blocked. Manually level the build bed and clean the toothed gear to remove any dust or debris.

CHECKING THE OPERATION OF THE THREAD PULLER:

  • Make sure the power cord of the thread puller is securely connected. If it isn’t, connect the cable with the printer turned off.
  • Make sure the thread taker control is active in the printer’s menu (menu/prepare/movement/1mm/extruder).
  • Check that the black knob of the thread puller is securely connected to the motor shaft. You can do this by pressing and holding the thread puller pliers and turning the knob. Make sure that the M3 grub screw is screwed onto the flat surface of the motor shaft, keeping the toothed part centered with the filament passage.
  • Check that the thread puller motor fan is working properly. If the fan is not running, you may need to contact technical support for repair or replacement of the motor.

FILAMENT CONTROL:

  • Make sure the filament is of good quality and has no knots or imperfections.
  • Check that the filament has not expired, as the old filament may be more susceptible to clogging.
  • Check the humidity of the print material, particularly if it is moisture-sensitive filaments. Absorbed moisture can adversely affect print quality, causing problems such as burrs, blemishes, and changes in material properties.

TEMPERATURE CONTROL:

  • Check that the nozzle temperature is set correctly for the type of filament you are using. Too low a temperature can cause blockages.