Cura 4.4.1 virtual extruders (up to 8 colors)

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Cura 4.4.1 virtual extruders (up to 8 colors)

Post by Possum » Thu Jan 16, 2020 11:59 pm

Do you want to print with 8 colors using 3 extruders? It is possible with simple gcode post-processing.

There are three steps:
1. Add printer to Cura profile. Set 8 extruders.
2. Load stl models (8 independent parts).
3. Assign extruders to each part of model. Do not forget about prime tower.
4. Slice and save to disk.
5. Run script that will replace every Tx with corresponding M163... commands like here:
M163 S0 P0
M163 S1 P1
M163 S2 P0
M164 S0
6. Print.

I wrote script and have printed test squares. My settings for virtual extruders were:
T0: 1.0/0.0/0.0
T1: 0.0/1.0/0.0
T2: 0.0/0.0/1.0
T3: 0.5/0.5/0.0
T4: 0.0/0.5/0.5
T5: 0.5/0.0/0.5
T6: 0.0/0.7/0.3
T7: 0.3/0.7/0.0

I have used following filament: brown, white and blue (yes, it is not the best choice for color mixing but this is the only colors I have at the moment). Result photo (8 small squares):
IMG_20200116_175709.jpg (290.96 KiB) Viewed 210 times
Another test (6 big squares, slightly different settings with prime tower volume increased):
IMG_20200116_162743.jpg (211 KiB) Viewed 210 times

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Re: Cura 4.4.1 virtual extruders (up to 8 colors)

Post by vert » Fri Jan 17, 2020 5:34 am

rather impressive results typically i see aquarfresh extrusion.

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