Hey, I am playing with the new extruder design and Titans and this is something I actually had since the beginning with the stock firmware RC3, and all of my following versions. I am somehow unable to get a reliable workflow to calibrate E steps. I tried several methods but it is irritating... Method 1: Using E3D's scripts from the SD and the LCD This is annoying because the box always homes and the moves back again and again each execution. But the issue is there too. What I do is heat up the nozzle. When the nozzle is at temp I mark the position on the filament and start the script. I calculate the new E steps and change them with the LCD. I execute the script again, the extrusion is still off. I execute the script again, the extrusion is different, maybe off, maybe matching. I execute the script again, the extrusion is the same as the try before. I calculate the new E steps and change the with the LCD. I execute the script again, the extrusion is still off. I execute the script again, the extrusion is different, maybe off, maybe matching. Rinse and repeat until I have it... You see my problem? I have to do this at least two time after changing the E steps to get the real result somehow... Method 2: Using OctoPrint and LCD Same phenomena like in Method 1. Method 3 Using only OctoPrint and M92 command Still the same but I was not able to get a foreseeable result, the extrusion is always off whatever I do calculate and change. I change the script of E3D to only extruder 50 or 10mm. But then I have much more strange results. For example I use the 50mm distance and extrude more times between changing the E steps then I can get to a point where the extrusion seems ok. Then I just use the 10mm script and the extrusion is wrong. I switch back to 50mm and the extrusion is wrong too... I do not know what to do to get reliable results... Did anyone have a comparable experience?