Hello! I need your help, please... I have changed my cheap Chinese clone Titan setup to original on my printer (corexy, direct drive). Unfortunately the chinese setup worked better than the genuie. I have first layer mostly OK, but after this, when the speed increases I have serious underextrusion - no extrusion at all after some time (no overheating at motor, still stays cool). I have: Titan extruder, v6 hotend, slimline motor (0,89°), LV8729 (16 microsteps, vref = 0,6V, what makes 1,2A), extruder motor steps = 837 The problem: I have to set the filament tensioner to almost 0, otherwise the motor cannot turn the gear. But with this low tension, after a while the hobbed gear cannot push the filament, just grinds the surface of that. I checked more times the assembly - looks OK. The hotend also looks OK - clear inside. Nozzle OK, no clog. I can push the filament through the hotend manually or by turning the gear by hand? What is the max. current for the slimline motor, as it seems it cannot produce enough torque to move the filament?