I can't get the color change to work  

RE: I can't get the color change to work

That is not much to work with for us. Can you please upload the 3mf file of the print you have problems with? In PrusaSlicer go to File>Save Project.

That file will contain all your settings so it will be easier for us to see what you did and what could be wrong. The 3mf file needs to be zipped to upload it here.

Does the print stop at the point it needs to change color or does it just continue with the first color?

RE: I can't get the color change to work

@baklin

First of all, thanks for the quick reply

printing continues with the same color

I am attaching a simple model on which I am trying,
where it starts with extruder 3 and at level 2.00 it should change extruder and go to 4.

But this does not happen and continues with the initial extruder

Targhetta Bibi

RE: I can't get the color change to work

I looked at the settings and didn't see anything obviously wrong. I have sliced it with your settings and it worked fine.

It changed filament for layer 10 (2.0 mm). You should change that as the first layer with text is layer 11 (2.2 mm)

That doesn't help with the problem you have, but it is something to think about when you slice the file.

Now we have to figure out why it didn't work for you.

Do you print from sd card or do you use Octoprint?

RE: I can't get the color change to work

I print using Octoprint 1.4.1, I don't update octoprint otherwise I can't use Raspberry Pi Zero W anymore

I attach screenshots of how I configure prusaslicer

For example I have the heights 2.00 and 2.30 how did you insert 2.2?

RE: I can't get the color change to work

You are now slicing with the 0.3mm profile. 

Move the change to 2.3mm and it should do fine.

You don't have to update octoprint. But in octoprint you need to change the printer settings. You have to select 5 extruder or octoprint will never send and extruder change commands. 

RE: I can't get the color change to work

You could try to use the sd card as a test. 

RE: I can't get the color change to work

I solved in fact it was the profile on octoprint not configured

Thank you

RE: I can't get the color change to work

Good to see you got it working. I did the same when I first printed with the MMU. Never thought I had to change something in OctoPrint too.

RE: I can't get the color change to work

Oh, thank you so much for the explanation. This  solved my problem too. I was about to ask, but saw this discussion and it was helpful for me too.