2nd Layer above raft is missing

[Timmaeae 0]

Hello, everyone,

I have a problem with slicing when I use a raft.

 

No matter how thick I make the raft, the second or third layer over the raft gets lost.

I lose the connection between the layers and the pressure goes into the pants.

Do you have this problem too? Does anyone know the problem ?

 

 

[Curven 28]

Hello I actually never printed with a raft. But as far as I know it is normal that there is a gap between the raft and the part, without it it would be impossible to remove the raft of the part... 

I think I have read somewhere that this gap can be configured in Cura, but as I never used it I can not give an advice on the optimal gap. (between support and print the gap is 1 layer)

I looked in Cura and found that:

By default the gap is 0.3mm. I would try reducing it to 0.2 and then adjust if necessary,

[HFJuli 0]

Hi

I have the same problem. The Air Gap is on both Material set to 0, but the support Material is not generated for the first Layer. I hope someone can help to solve this issue.

 

I have now seen that every second layer is missing. With the support structure for the part, however, every layer is printed. Where is the setting that every layer is printed on the prime tower for the support Material?

Cura 5.2.1

 

Edited December 13, 2022 by HFJuli
additional info

[GregValiant 1,240]

Hello @HFJuli.  Please load the model and set Cura up to slice and use the "File | Save Project" command. Post the 3mf file here.

[HFJuli 0]

Hi Greg.

 

Enclosed the 3mf file. 

Position Test.3mf

[MariMakes 198]

Hey @HFJuli,

 

I recognize your issue, we've seen a similar report on our Ultimaker Cura Github.
https://github.com/Ultimaker/Cura/issues/13713
 

We've added a ticket to the backlog with the intent to improve this soon. 

I'll add your file as a testcase to see if the fix works. 

Thanks for the report! 👍 

[GregValiant 1,240]

@HFJuli in the meantime try setting your "Initial Layer Height" the same as your layer height.  I played with it a bit and that seemed to get the air gap to 1 layer high.  (I was unable to get it down to 0 though.)

 

Edit:  An Initial Layer Height of 0.01 may work.  There was still an air gap of 0.20 to the support but the preview shows the model with no air gap.

Edited December 13, 2022 by GregValiant

[HFJuli 0]

Okay thank you people.

I hope they can fix this problem soon. 

 

 

 

 

 

 

[HFJuli 0]

Hello
 

I get a message that this problem is fixed in Cura 5.3.

But its still not working. What do I need to set to make it work?

[MariMakes 198]

Hey @HFJuli,

 

I just tested the model mentioned above and it seems to work for me:

 

The issue was resolved during the Beta period, so the fix is not present in the Alpha or Beta. 
Are you sure you are on 5.3 stable? You can download it here: https://github.com/Ultimaker/Cura/releases/tag/5.3.0