My work has damage at the shell

[pizemakerstation 1]

I use Ultimaker S5 Pro bundle, generic PLA, natural PVA with a 'Fast' print profile for this work. As you can see, there are some crack on the shell. This happened 2 out of 4 times. 

How can I fix this problem.

[SandervG 1,521]

Hi @pizemakerstation, I am not sure which crack you are referring too but I will recommend to look into two features of Cura that would probably help. Apologies if I read your photos incorrectly. I would recommend to look into the Z-seam feature, and set it to random. The Z-seam forms when the print moves to the next layer and a small blob can form where the print head is while the bed moves down. Cura can hide this in a corner, but it can also scatter it randomly so it is less visual. 

 

For the 'scar' on the inside surface I would suggest to look into the comb feature, and set it to 'Not in skin' if it is not already (I think it isn't). 

 

Thanks, looking forward hearing from you if this made a difference!

[orlin278 14]

Hi,

 

i also experience these "scars" on the outside. For me it's not happening when I'm using Ultimakers PVA, but a third party one which tends a lot to string.

I never really bothered with this problem, as it doesn't is a problem very often and when it's a problem, the printed part doesn't have to look nice.

 

But I'm assuming it is some kind of stringing of the PVA, maybe you could dry it and redo the print or maybe there is a setting in Cura which will prevent this.

 

Greetings

[Framar 38]

Are you using a support roof? If not that would surely help the surface finish on the steep angle.

[Jutamad 0]

Hi Everyone!

I'm doing the same project with @pizemakerstation 

 

Thanks for your recommendation! @SandervG @orlin278 @Framar  
 

we'd like to give more detail about our problem.
"some of PLA surface are indented. And this effect happens discontinuous "

 

I was wondering.

1. Is it possible for PVA to damage PLA While it's printing ?

2. We're using the Material Station for a month.PVA was in there all the time. Average humidity is 15% > we don't think our PVA are moisture. Is there any problem that we're missing ?

 

 

 

 

[Carla_Birch 116]

If you watch the print, you will see that it's likely that's due to the PLA starting to lift on parts where the overhang is almost flat, what could be a cooling factor or the PLA is just not sticking to the PVA very good.