Calibrating The Offset Jets

WARNING: DO NOT USE THE OFFSET JETS MENU UNLESS YOU HAVE BEEN ADVISED TO DO SO BY CUBIFY SUPPORT. CHANGES TO THESE SETTINGS WILL AFFECT THE QUALITY OF MULTI-COLOR OR MULTI-MATERIAL PRINTS. CALIBRATION WAS PERFORMED BY THE FACTORY AND ANY CHANGES TO THESE SETTINGS MUST BE APPROVED AND GUIDED BY CUBIFY SUPPORT.

NOTE: Calibrating the Offset Jets is only applicable for printers with more than one (1) print jet installed.

Calibration files can be downloaded from www.3dsystems.com/shop/cubepro/downloads. These files are printed like any other .cubepro file. There are four files available. The files are specific for the model printer (CubePro Duo or CubePro Trio) and for the material type (ABS or PLA) currently installed in the printer. All installed cartridges must be same material type (ABS or PLA) and each print jet will be used. Two Level Gap calibration files will also download with the Offset Jet Calibration files. These should be ignored during this procedure.

Calibration Overview

Depending on your printer model, you may have up to three (3) print jets installed. Calibrating the offset jets becomes necessary when multi-color or multi-material prints are not aligned properly. If the print jets are not positioned properly, supports may not print as intended and print geometries may be altered.

When it becomes necessary to calibrate the offset jets, each print jet will be tested for proper alignment. When printing the test file, a scale will be printed by all print jets and the scales printed by print jets 2 and 3 will be compared to the scale printed by print jet 1.

NOTE: It is very important to compare the scales printed by print jet 2 and print jet 3 to the scale printed by print jet 1. Print jet one should not be adjusted.

Y-Axis Scale X-Axis Scale
Print Jet 3 Y-Axis Scale Print Jet 2 X-Axis Scale
Print Jet 1 Y-Axis Scale Print Jet 1 X-Axis Scale
Print Jet 2 Y-Axis Scale Print Jet 3 X-Axis Scale

In the print scale illustration, the X+ scale (left-to-right) contains three (3) rows of printed lines. Each line represents a print jet. The prints are numbered 1, 2 and 3 for each of the three print jets. Print jet 1 always prints the middle scale so the scales of print jets 2 and 3 can be easily compared to it. Print jet 2 prints above print jet 1 and print jet 3 prints below print jet 1. For printers with only two (2) print jets, the scale below the print jet 1 scale will not be printed.

The lines on the calibration print represent an offset of 0.1 mm and should be measured from the printed arrows in the center of the scales.

Reading the Offset Jets Scale

Note the white arrow printed from print jet 2 and compare it to the positioning of the blue arrow printed by print jet 1. Note that the white arrow is slightly left of the blue arrow meaning that print jet 2 is misaligned. Print jet 2 must be moved in a positive direction (right) to align with print jet 1.

Compare the printed lines of print jet 1 and 2 to the right of the arrows and find the printed lines that are properly aligned. In this illustration, the lines at +0.3 are aligned. This means that the offset must be corrected by increasing the offset by .3 mm.

When comparing the arrow printed by print jet 3 to the arrow printed by print jet 1, notice it is positioned slightly to the right. This means it must be adjusted in a negative (left) direction. Compare the lines of print jet 1 and 3 to the left of the center arrows and find the printed lines that are properly aligned, In this illustration, the lines at -0.3 are aligned. This means that the offset must be corrected by decreasing the offset by .3 mm.

Offset Jets Calibration Procedure

The following procedure demonstrates calibrating print jets 1 and 2 on the X-axis. Calibrating the Y-axis is the same procedure. The illustration below will be used for demonstration purposes. Be sure to refer to the actual scale printed by your printer and adjust the settings accordingly.

  1. Download the CALIBRATION FILES.
  2. Extract the files to your computer's hard drive.
  3. Navigate to the file location and copy the appropriate Nozzle Offset Calibration file to your USB mass storage device.

NOTE: The Nozzle Offset Calibration files are specific for the model printer (CubePro Duo or CubePro Trio) and for the material type (ABS or PLA) currently installed in the printer.

  1. Insert the mass storage device into the CubePro USB inlet port and select PRINT.

  1. Navigate to the calibration file and select PRINT.

NOTE: The printer may require you to install additional cartridges or replace a cartridge. Follow the instructions on the screen and refer to the section titled Replacing A Material Cartridge.

  1. Once the printer has finished printing, remove the print pad from the printer and inspect the scales. If adjustments are required, proceed to the next step. If the scales are aligned properly, no further action is required.
  2. Navigate to the Print Jet Calibration screen and select OFFSET JETS.

  1. When adjusting print jet 2, select B.

  1. Referring to the illustration at the beginning of this procedure, print jet 2 needs to be increased by .3 mm. Select the value until the first digit (A) to the right of the decimal point is highlighted.

  1. Press the up arrow three times to increase the value to 22.30 mm.

NOTE: Pressing the up arrow increases (+) the value. Pressing the down arrow decreases (-) the value. Pressing the value repeatedly will scroll through the digits left-to-right.

NOTE: You can also select the Y-axis settings and adjust those settings the same way.

NOTE: If a value of 1 mm or larger are required, press the value until the first digit to the left of the decimal is highlighted and press the up arrow accordingly.

  1. Once finished adjusting the settings, select the checkmark to continue.
  2. Remove the original calibration print from the print pad. Reprint the calibration file and verify that the arrows align properly on the X-axis and Y-axis.