Holes after slicing the model

[alex369 0]

Hello everybody,

I tried to slice and print this model in different way but those holes are always present after slicing it (I am using Cura 4.7.1).

I tried with different values of the infill, different support type (Normal, Tree), different X/Y distance but nothing changes.

Can you help me to fix it?

[nallath 1,124]

It's probably because the walls are too thin.

Could you share a project file? That way it's easier for us to see what you are doing.

[alex369 0]

1 hour ago, nallath said:

It's probably because the walls are too thin.

Could you share a project file? That way it's easier for us to see what you are doing.

Yes, I attached it to this message.

I also tried with "Print thin walls" but nothing changes.

CE3PRO_heart_box_basic_bottom.3mf

[GregValiant 1,436]

Are you really using a 1.0 nozzle?  When sliced with a .4 nozzle and .4 line width there doesn't seem to be a problem.

[alex369 0]

4 hours ago, GregValiant said:

Are you really using a 1.0 nozzle?  When sliced with a .4 nozzle and .4 line width there doesn't seem to be a problem.

Yes

[nallath 1,124]

Slicing with a nozzle that is thicker than the walls is always a tricky thing. If the difference is too much, even the print thin walls won't be able to compensate.

I'd suggest printing this with a 0.4 nozzle, at which point the holes are no longer there.

 

[alex369 0]

3 hours ago, nallath said:

Slicing with a nozzle that is thicker than the walls is always a tricky thing. If the difference is too much, even the print thin walls won't be able to compensate.

I'd suggest printing this with a 0.4 nozzle, at which point the holes are no longer there.

 

Unfortunately, I cannot use the 0.4 nozzle because the actual filament (is a particular type of marble) clogged it.

Is there a way to fix the model or "some magic trick" in order to slice it directly on Cura?

[nallath 1,124]

You could try to set the line width a bit lower.

Alternatively you can also increase the thickness of the walls in a 3D modeling tool

[geert_2 559]

I have no solution, but after it is completed, could you make a few photos? Curious what that marble looks like...

[GregValiant 1,436]

The magic trick for a clogged nozzle is to heat it up and burn the plastic out.  I use a propane torch to heat them up and then cleaning needles and a small brass wire brush to finish the job.  I have not had any issues cleaning them like.