Dual Extrusion Calibration

Overview

Correct extrusion quantity is important for quality prints. If the extruder is pushing too much plastic, layers will overfill, resulting in bumpy and uneven surfaces. Extruding too little plastic will cause weak bonds and gaps between layers, resulting in a weak structure. 

Tools Needed: 

• Calipers or metric ruler 

Dual Extrusion Instructions: 

1. Download the .gcode file or Simplify3D .factory file listed under your Gigabot's firmware version: 
   1. Firmware 4.1.5 and above (Azteeg X3-PRO control board)
      
      1. 0.4 Left 0.4 Right PLA Factory File
      2. 0.4 Left 0.4 Right PLA Gcode File - Most users want this one
      3. 0.4 Left 0.8 Right PLA Factory File
      4. 0.4 Left 0.8 Right PLA Gcode File
      5. 0.8 Left 0.8 Right PLA Factory File
      6. 0.8 Left 0.8 Right PLA Gcode File
   2. Firmware 4.1.3 and below (Azteeg X3 control board)
      1. 0.4 Left 04 Right PLA Factory File
   3. Print the file and measure the offset between the top half and bottom half.
   4. Exact distance between the extruders must be set in either the printer (firmware 4.1.5) or in Simplify3D (firmware 4.1.3).
   5. By default, the distance from the center line of E0 to E1 is set as: X = -55mm Y = 0mm.
   6. The exact distance can be found by performing a test print using the above .factory file to print a 40mm box.
   7. The first 10mm of height will be with the left extruder, and the second 10mm of height with the right extruder. 
   8. Measure any offset and then adjust the above offset values using the Viki controller interface (4.1.5) or Simplify3D (4.1.3).
   9. Follow the instructions corresponding to your Gigabot's firmware version. (Below the photos) 

Firmware 4.1.5 and above (Azteeg X3-PRO control board)

1. Measure the offset (if any) between the first and second 10mm of height in both the X and Y-axes.
2. Adjusting the offset in the Viki controller:
   1. Press the center button of the Viki.
   2. Scroll down and select “Control”.
   3. Scroll down and select “Motion”
   4. Scroll down and select “T1X”.
   5. If the top 10mm was shifted to the right (+X direction), then increase the value by the amount of the shift and click the center button.
   6. Scroll up and select the “up one level icon.”
   7. Scroll down and select “T1Y.”
   8. If the top 10mm was shifted to the back(+Y direction), then increase the value by the amount of the shift and click the center button.
   9. Scroll up and select the “up one level icon.”
   10. Scroll down and select “Store Memory” two times.
   11. Turn off power and turn on power to your Gigabot.
   12. Verify the T1X and T1Y values are changed.
   13. Run the above G-code file and verify there is no shift between the bottom 10mm and the top 10mm.

Firmware 4.1.3 and below (Azteeg X3 control board)

• Measure the offset (if any) between the first and second 10mm of height in both the X and Y-axis.
• Adjust the "Toolhead offsets" for tool 1 under the G-Code tab in the .fff settings.

This step completes initial calibration for your Gigabot.

If you are unable to download files due to security restrictions, our support team would be happy to email it to you. Questions or concerns? Reach out to our support team at support@re:3D.org or open a support ticket.