The original stepper motor of the printer will be reused and the extruder will be mounted at the same position and in the same mounting holes as the factory extruder making the installation easy and fast in about 10 minutes.
E-steps needs to be updated to 311
Firmware with adjusted E-step is available for Ultimaker2+, Ultimaker2+ Extended or you can send a M-code to the printer directly to set the e-steps (more info here) under the section E-steps.
For Ultimaker 3 there is no firmware available, settings need to be adjusted in the current configuration, check the installation guide that you will find under the tab “Installation guide”
This extruder is developed together with C.Matthes in Germany