Hello, I just bought an ender 3 V3 plus, and I have been trying to change the filament in the middle of printing, (I have used orcaslicer) and I have a problem, when I get to the filament change, the printer retracts a little filament before reaching the head stop area,
Then when I try to retract more filament it gets stuck, I imagine it must be due to the change in temperature of the nozzle!! But I wanted to know how you do this filament change without the material getting stuck!!
Why do you need to replace it? Your bed is pretty flat. My V3KE is +0.4/-0.6 and prints perfectly well. The software will easily compensate for your deviations.
Hello @Hidekel_Lara …! 
Welcome to the Creality Forum…! 
How do you mean “stuck”…?
Are you manually pressing pause to change the filament or is it in the gcode…?
My experience is with Creality Print…
Yes, it gets stuck with the G-code! Using G-code, what the printer does before reaching the parking area is that it automatically retracts a bit of filament, and while it’s moving to the parking area, the filament gets stuck in the extruder because it expands! This causes the G-code change not to work for me, and I can’t use a flush tower for multicolor printing!
Try just pausing print ,pull out filament,put new stuff in ,press resume,. Not sure what yr G code has to do with anything.
He is trying to pause using the gcode commands. That way you don’t have to try to hit pause at the right time for each print. It’s already there so you wait for the printer to pause.
All the years Ive been changing filament,I command it via display to change filament,so this waiting for g code to pause must involve other factors not known,ie is this multi colour switching? Or?
Hello Ian_Summerfield,
Doing it via gcode basically gives you better precision as to exactly where the colour is going to change, knowing the printer will move the nozzle up and away from the print and wait for you to change the filament and have it go back and continue safely.
Cheers.
I am not clear as to what problem exactly you are describing, but it is possible for the filament to become stuck due to it melting in a strange way upon the retraction command.
Hare is an official Creality After Sale video dealing with that problem: https://youtu.be/x521JyDBdGA?feature=shared