Print a part using black filament for the inside and white filament for the outside on an Ultimaker S5

[Mechatron127 1]

Hi,

 

To print a part where the inside should be black and the outside white I would like to assign the inside surfaces to nozzle 1 and the outside surfaces to nozzle 2 (or the other way around).

Is this possible in Cura and if so how can it be done?

 

Or should I split the model into two stls and then put them on the building plate at the same time?

How can a nozzle be assigned to a certain stl in that case?

 

br,

 

Leo

 

[Slashee_the_Cow 421]

You could put black into the first extruder (which will print everything by default) then white into the second and change Walls > Wall Extruder > Outer Wall Extruder to extruder 2:

However this depends on your object. If your object has a well in the middle (like a pencil holder or something) then this will make the inside of that white:

If it's a solid object then it'd work fine.

 

If you want to make it two separate models, assigning an extruder is easy: just right click the model in Prepare mode and pick your extruder:

 

Bit of a warning though:

White PLA tends not to be completely opaque. You usually need several layers/walls of it to hide what is underneath. I haven't tried walls - because I don't have a dual extruder printer - but it usually takes about 4x0.2mm layers of white PLA to completely hide the colour underneath.

[Mechatron127 1]

Thanks, made a ufp file and will try tomorrow at work.