Cylinders can be combined for larger volume prints.
Keep cylinders CLEAN. Dry material inside is the #1 problem.
No air in cylinders. Air will make the material delivery spongy. Accurate control is impossible this way.
manuals are at Desktop > repetrel > Manuals
. Check the Accessories
folder for manuals about the toolheads.
Choosing another Slicer Profile
Make sure you select first the project file (Main) and then the 3D object in the project window before choosing a new slicing profile. This is a quirk of the Repetrel software. Make sure to Add consistent notes to the slicer profiles, so you can notice them in the G-code preview (they are printed on top of the file). This makes it easier to see exactly which profile you selected