Full Material Changeover (MCO)

For successful build jobs, when a user wants to switch from one part material to another without material mixing, a full Material Changeover (MCO) must be performed. A full MCO is required when switching from a rigid material to a elastomeric material or vise versa. 

NOTE: Please ensure you have replaced the waste bag with a new empty one PRIOR to starting the Material Changeover Procedure. Also, ensure you have the required materials for the material change – two MCO Cleaner 2500 cartridges, two new part material cartridges and two support material cartridges for head maintenance cycles.

NOTE: Full-MCO requires two support cartridges present to complete successfully.

NOTE: If MCO is not performed correctly, the color profile of the new installed material may have residual original material color.

  1. Ensure printer is in Ready state. Select Tools > Material Change Wizard from the UI.

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  1. Select Play.png to start the Material Change Wizard.


  1. Verify you have the required material on hand to start the material changeover procedure and select CONTINUE.

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  1. The Material Change Wizard will show where in the process it is:


  1. When prompted, remove the current part material cartridges and close the MDM drawer, and select CONTINUE.


  1. Once the printer has flushed out the current part material, then when prompted, insert two MCO Cleaner 2500 cartridges and close the MDM drawer. Select CONTINUE.

NOTE: This step can take 30-45 minutes to complete while it removes the old part material from the printer.


NOTE: If the cartridges are cold the process will take an additional 30 minutes to allow material to warm before continuing.


  1. The MCO Cleaner material flushes the rest of the part material out. This can take 30-45 minutes.


  1. When prompted, remove the MCO Cleaner cartridges from the MDM and close the drawer. Select CONTINUE. The printer will proceed to flush the Cleaner material from the system.


  1. When the Cleaner material has been flushed from the printer, when prompted, insert the new part material cartridges into the MDM. Select CONTINUE.

NOTE: If the cartridges are cold the process will take an additional 30 minutes to allow material to warm before continuing.


  1. This step can take 30-60 minutes to complete loading the new material into the system.


  1. Once the Material Changeover Process is complete a confirmation screen will appear. It is recommended to clean and inspect the planarizer blade and ducts once the material changeover is completed.