YUVL

Thank you so much. It works now. Installed version of Cura-mb-master-win64-20200721. The parameter "prime all extruders on the initial layer" helped.

Yes, the center of the tower is extruder 1, but when printing, it turns out that the prime tower is filled from extruder 1, then it switches to extruder 2 and after printing a couple of border lines, letter parts printing starts AY vnesh.gcode

The morning did not work out. This time I forgot to set the size of the prime tower. Corrected in the new file AY 1_2 extruder kulon.3mf

It is clear that if you open g-code, then saving does not work. Created a new project. I hope everything is right now AY 1_2 extruder kulon.3mf

AY 1_2 extruder kulon.3mf Yes, my mistake, I'm sorry AY 1_2 extruder kulon.3mf

Here is the 3mf file of my project AY 1_2 extruder kulon.3mf

Hello. When printing with multiple extruders, the Prime tower starts working from the second layer. If there is an extruder change on the first layer, the prime tower will ignore the change. Is there a way to make it work from the first layer?