Multi color printing with single extruder  

RE: Multi color printing with single extruder

Good morning Ivan, 

I have not tried firmware 3.9.1

there are a number of options using Prusa Slicer

as you can see in the attached image, 
you can choose a simple colour change  by left clicking the mouse as at level 8.3mm in the picture. 
in this case the image in the left window will change from the original slicer colour selection to another slicer colour automatically (sequence Red, Orange, Yellow, Green, Blue, Purple, Red, O, Y, G, B,P   for as many changes as you set) note, in the main picture the first colour was orange because that was the colour in the filament type setting... 

at the second colour change I used Shift+Left Click, and chose Green... 
If you Shift and left click, you can choose the next colour  to represent your actual model 

Further up the model I used Right click to display the option box
to demonstrate that there are other options...  

I use this to add custom G code when making temperature towers... 
at the temperature change point,

I move the extruder to the left, away from the model,                        G1 X10        ; move extruder to position X = 10mm 
then I set a temperature change                                                              M104 S180 ; set extruder temp  to  180C
and a  wait  command                                                                                M109 S180 ; wait for extruder temp to reach 180C

this ensures that the temperature has changed before moving to the next test section.    

If you make a colour change in  Slicer 2.3.0 alpha2, you get a display like this

where it shows all of the colour changes, the duration of each section and the colour change information

If you open the Gcode in Notepad++  (Free to download)

you can search for M600, to check that the colour change code has actually been inserted... 

If you find that the colourchange code has been inserted, and Firmware 3.9.1 still does not respond to it. then there is a problem, 

if you find a problem, could you please report it on the Github page where the developers work!

regards Joan

RE: Multi color printing with single extruder

@joantabb

Thanks, I will try this out