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Order of printing layers in multiple models


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Posted (edited) · Order of printing layers in multiple models



I am currently working a filament mixing printer for an optical characterization process.


I am using secondary models to purge residual colors before transitioning to the next color and we do this every single layer. We are choosing not to change the orientation of the model as we have more complex models in mind that will mandate intralayer color changes



By carefully positioning the purge towers, we have seen promising results that allow us to switch colors using this type of approach quite well.


However, inside of cura, we have noticed that the order of the colors that are extruded per layer tends to change to minimize the number of color changes. Would it be possible for us to fix this order ? For example we would ideally want :

Step 2: Print MAIN MODEL Yellow
                 Step 3: Print PURGE Green
                Step 4: Print MAIN MODEL Green
                Step 5: Print PURGE PURPLE

I would want this specific order of Steps 1-6 fixed for every single layer.

The current project file I have uploaded shows the alternating order of printing as a function of increasing layers that I am trying to fix.  I have attached it for your convenience

Thank you your your assistance.




Edited by rahul_r
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