Motion System & Dual Direct Drive (requires Duet upgrade):
Replace the X shaft with two motors, one for each X-axis belt.
This configuration can provide the required torque to move the heavier print head configuration, the added weight of the secondary extruder and extruder motor.
- New mounting for the extruders. This new mounting places the two extruders side by side in a dual direct drive mode. This configuration provides higher accuracy with dual-extrusion printing.
- A new mounting system for the X and Y axis drag chains reduces vibration and provides more accurate printing.
NOTE: This upgrade requires the "Electronic Controller & Touch Screen" upgrade, which you can find here: LINK