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Cura 15.02.1 printing infill before perimeters

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I'm not sure if it's a bug or a feature, but I'm afraid this is giving me worse print results than before...

The newest Cura messed up the printing order:

Infill is printed first, shells second, and finally it does the "100%" infill parts (top, bottom, odd angle walls).

My latest print shows lots of blobs on the vertical surfaces, and the parts where the infill connects to the shell sticks out. So I get vertical lines in my walls.

I guess the reason is that if the infill is printed first (with 15% overlap), there already is some material when the printer does the shells. This leads to the material escaping outwards a little bit. This is not the case when the shells are printed first. At least I never noticed it before.

I'm not sure if it always prints the infill first, or if it depends on the model. I can provide the model that gives me trouble on request (by mail only - it's property of my company).


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the best would be an option to select the wanted order.

for me i would prefer perimeter/shell/infill, as mechanical parts will come out more exact, for sure overhangs are more difficult but most mechanical parts have straight surfaces.

so maybe a choice between three types:

* shell/infill/perimeter

* perimeter/shell/infill

* shell/perimeter/infill



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I've noticed a severe degradation when printing with PET+ at .2mm and .25mm. When making rapid moves (doing shells/perimeters within the model body) the nozzle is dragging across the infill and leaving remnants and jostling the model. I haven't tested at smaller layer heights. I need to go back to the 14.x I have installed until this gets fixed.


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I am having the exact same problems. I have tried all sorts of workarounds but it seams that the fact the infill is printed first, creates very visible bumps on the outer surface-shell. When the nozzle comes around to print the shell, it smooshes the already laid down infill and creates these bumps.

Anyone had any luck with any kind of workaround? Or some kind of fix?

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