Advanced Gcode Settings

  • Filament Settings - Advanced
  • Unloading speed at the start: This setting indicates the unloading speed of the filament, right after ramming movement (Ramming will be mentioned in the following section). Increasing this speed will compel the step motor and can cause deformation of the filament. Nevertheless, increasing this value will reduce the stringing on the filament likewise this will improve print quality and will reduce print error. For Co Print recommended value is 90 mm/s
  • Unloading speed: This setting indicates the unloading speed of the filament on the wipe tower. This setting will not affect stringing on the filament but it will affect the time of filament change so that print time as well. For Co Print recommended value is 20mm/s.
  • The number of cooling moves: This value indicates the movement number of the filament to cool down. This movement will occur in the cooling tube and the filament fill move back and forward. Increasing this value will cool down the filament much more and will increase the time. For Co Print recommended value is 2.
  • Speed of the first cooling move: Cooling moves gradually increase or decrease according to the Speed of the last cooling move. The decreasing value will improve print quality. However, keep in mind that these settings are experimental and changing them can cause failure as well as success. For Co Print recommended value is 9 mm/s.
  • Speed of last cooling move: This value will determine whether cooling movement speeds will increase or decrease gradually. If speed increases this might cause deformation of the filament. That is why the difference between the first and last cooling move speeds should not be too much. Keep in mind that these settings are experimental and changing them can cause failure as well as success. For Co Print recommended value is 5 mm/s.
  • Ramming Parameters: Ramming is a movement that happens before filament retraction(filament change). Increasing the volumetric speed will cause more pressure inside of the nozzle and this pressure will provide a cleaner tip on the filament while retracting. Increasing the Total ramming time will divide the pressure time and this will prevent an excessive amount of deformation on the nozzle. Keep in mind that these settings are experimental and changing them can cause failure as well as success. For Co Print recommended graphic is provided in the preset Prusa Slicer project.

Prusa Slicer Printer Settings Tab

 

  • Cooling tube position: This setting indicates the distance between the nozzle and the cooling tube. The cooling movement will start from that position. The Co Print cooling tube is the blue PTFE tube that comes with Co Print. This value will retract the filament through the cooling tube, this distance should be away from the nozzle to provide a cooler ambient temperature for the filament. Increasing this value will cause too much retraction and cooling movements will happen at the wrong place and can cause blockage inside the PTFE. Keep in mind that these settings are experimental and changing them can cause failure as well as success. For Co Print recommended value is 23 mm since the cooling tube is 100mm in length. If this tube’s length will increases this value should be increased as the amount of difference between the 100 mm length of the tube and the new tube’s length. The same process must be applied if the PTFE tube’s length decreases. 

  • Cooling tube length: This setting is defining the cooling move distance. This means the filament will start moving forward and backwards with the cooling tube length amount. If this value increases the filament will move much more distance and this will decrease the temperature of the filament. However, if this value will increase too much then the filament can collide with the nozzle and this action is not desired. If this value decreases the filament will move a shorter distance and this will cause less temperature decrease in the filament.  Keep in mind that these settings are experimental and changing them can cause failure as well as success. For Co Print recommended value is 15 mm since the cooling tube is 100mm in length. To give an example the filament will move 15 mm forward, backward, forward and finally backward. Decreasing the temperature of the filament before the changing movements will increase the success level. 

  • Filament parking position: This value indicates the retracting amount of the filament after filament change movement ends. If this value will be less than required then the filaments will stick inside of the 7 in1 module. For Co Print recommended value is 85 mm since the cooling tube is 100mm in length. If the length of the PTFE tube increases then this value must be increased as the amount of increment in the tube length. 

  • Extra loading distance: This value indicates the extra distance of the loading filament. After filament retraction, the new filament will be driven to the nozzle tip. If this value is greater than zero this means, that amount of filament will be loaded more through the nozzle. This can cause a blob on the print or the print table. For Co Print recommended value is 0. 

  • High extruder current on filament swap: This setting will provide more current to the step motor while filament change movement occurs. Since the movements are rapid the step motor will require more current. For Co Print recommendation is opening this setting.