MultiMaterial with 1 extruder
I am trying to print some lettering in a different color than the background. It looks like it all sliced correctly, but the printer did not stop and ask me to change the filament as I had expected it would. It printed the background color and then the wipe tower and then went right on printing the letters in the base color.
Am I supposed to put in a manual filament change code? I don't see how because the change is not at a layer boundary. I have attached a pic of the extruder/filament list. The print is just a bit too big to print as one unit so I had to break it into 2 parts and each letter became a part. I merged them back together (I think).
Thanks for any help.
RE: MultiMaterial with 1 extruder
It looks like you are trying to set it to print with a MMU3 attached to the core one L, but sounds like you do not have one.
In order to do what you want, you need to add a M600 / color change.
you can take a look at this and it should help you
https://help.prusa3d.com/article/color-change_1687
Shane (AKA FromPrusa)
RE: MultiMaterial with 1 extruder
Thanks for the reply. Yes, I am trying to be my own MMU. The color change procedure in the article you cite is good for between layers but I need to change in the middle of a layer. I can see the wipe tower start in the gcode. It looks like the slicer forgot to put the color change in there.
I tried this same thing with my MK4 and I get a lot of gcode about wipe and tool change at the cross over point. I think the slicer has an error.
I did not run the MK4 gcode, but I did run a very similar thing on a smaller project on my MK3 and that prompted me to change filament without my adding anything special
RE: MultiMaterial with 1 extruder
What you're doing is correct.
I did the same a few weeks ago and found out, that you have to copy the "Color change G-Code" to the "Tool change G-Code" field under Printer->Custom G-Code
The article that Shane references explains how to setup a color change where you want to have the same color for the whole layer, for inlaid text, your approach is the right one.