Velleman K8402: Dual Extruder Upgrade Kit for K8400 Vertex 3D Printer
SECOND NOZZLE FOR K8400 - VERTEX 3D PRINTER
0.35mm extruder assembly
Plug-in stepper motor driver
All necessary hardware
At the factory, we have loaded your Vertex 3D Printer controller board with dual extruder firmware.
If you would like to use your Vertex 3D Printer as a single extruder printer, you will have to upload single extruder firmware.
If you have been using your Vertex 3D Printer as a single extruder printer and you are upgrading to dual extruder, then you will have to upload dual extruder firmware.