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strange holes in the print!


mariocoppola

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Posted · strange holes in the print!

Yes, but your model has no infill and you normally print infill before walls (so it says in your profile) so the air could possibly be expelled in the infill (when you use infill) and you would not notice the holes.

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Posted · strange holes in the print!
10 minutes ago, burtoogle said:

Yes, but your model has no infill and you normally print infill before walls (so it says in your profile) so the air could possibly be expelled in the infill (when you use infill) and you would not notice the holes.

 

of course my model is 2 perimeters! so it is strange, I should see the hole in the internal perimeter and close to the starting point, instead the holes are in the external perimeter and far from the starting!

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    Posted · strange holes in the print!
    3 minutes ago, mariocoppola said:

    of course my model is 2 perimeters! so it is strange, I should see the hole in the internal perimeter and close to the starting point, instead the holes are in the external perimeter and far from the starting!

     

    You can normally tell if it's air because you can actually hear little pops as the bubbles come out of the extruder.

     

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    Posted · strange holes in the print!
    32 minutes ago, mariocoppola said:

    ok, so what you suggest? try to speed up the retraction?

     

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    Posted · strange holes in the print!

    I would suggest try reducing the retraction distance in 0.5mm steps and see if (a) the holes go away because you had too much retraction or (b) you start to get stringing or blobs because you have not enough retraction. Obviously, you can test this on a small model rather than your big print.

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