for Scalar XL and AllInOne hotend you will need to print : DirectDrive_Adaptor_XL_PTFE.stl This model will require you to use a small part of your PTFE tube to place inside so reduce the friction of the filament on the shells.
We also updated the extruder so that we can also have a PTFE tube inside. the model to print would be DirectDrive_Body_DirectDrive.stl from the same thingiverse thing.
About the settings:
For this picture we were using the Scalar M-Box edition This printer is not yet released and the mechanics is completely different from the Scalar M, very close to a ultimaker. It a bowden system with very short PTFE tube.(nearly half the size)