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Prime Tower Gap


CCA1

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Posted · Prime Tower Gap

I have Ultimaker 2 Extended plus with Mark2 conversion. So I have dual extrusion.

 

When trying this particular print, I noticed that the prime tower has an area inside that has a gap where my red (inside) material is. The outside material (white) is my printing material and the inside is my support. (But only the support interface so as to save support material)

 

Any ideas as to why there is this gap and how to fix it? I fear that if I try to print this it will fail where this will not print properly?

 

Thank you,

 

- Jason

 

 

support tower.jpg

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    Posted · Prime Tower Gap

    Hi Jason,

     

    afaik this is intended behavior since Cura 4.4 (?). The build material creates a continuous tower, ensuring proper layer to layer adhesion, and the support material is placed at the inner side, and only when the second extruder needs to be primed (for saving support material). So there is nothing to be fixed.

     

    With my UM3, I never had an issue with the prime tower, so I suppose with your Mark2 it will also work properly.

     

    Regards

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