[Testers required for "exact" z-seam positioning in Cura development builds]

On 7/29/2022 at 8:30 PM, tstone52 said:

Any word on merging this into mainline Cura? I often print things that absolutely need the straight z seam and I'm stuck using this old version of Cura just for those prints. Would be excellent to have this in the new Cura with Arachne.

I'd second this. I am also lost with seams all over the place.

[CURA not printing the first 0.2mm of my parts]

1 hour ago, GregValiant said:

This was a problem in 4.11 on single layer prints.  So far as I know it was fixed in the later versions.  I can't duplicate this in 4.12.1.  You are sure that the bottom of the model is at Z= 0?

You can try adjusting the layer height to .099 and see how it goes.

 

I'm on 4.13.0, so by all accounts shouldn't happen. Decreasing the height to 0.099 did bump the print up to two layers, but still not the expected 3.

 

And yes, it is at zero:

 

And here you can also see the part is placed on the surface. Nothing below the surface plate line.

[CURA not printing the first 0.2mm of my parts]

I've noticed this before. The part sometimes doesn't print the first few tenths of a millimeter. In the sample below, the part is .3mm thick. The software recognizes that. The layer height and first layer height are set to 0.1. So I expect a 3 layer print. But right there, cura says it will only print 1 layer.

I need to increase the part thickness to at least 0.6 to get it to print the 3 layers.

 

What gives?

 

[Discontinuous lines]

Had to go all the way down to 0,3 to get it to work.

[Discontinuous lines]

For future reference, I just figured out I could solve this by lowering the inner wall width to 0,3 though I have a 0,4mm nozzle and still, this makes no sense, why the top arc with the exact same wall thickness is ok, yet the bottom arc requires this change.

[Discontinuous lines]

Hi all.

 

Having an issue with CURA. I am testing a print of a monitor standoff I designed. I designed it with 1,2mm wall thickness so I can print 3x,04mm walls and obtain the 1,2mm desired result. Trouble is, cura is printing the middle line in a discontinuous fashion, causing severe issues with adhesion, PLA buildup on the extruder hot end, considerably longer print times, etc... This happens in layers where it's just the wall being printed. If I check top layers, as soon as it starts working on those, it's all good.

 

This is layer 1 (of the test print as part is shifted down) and you can see the interrupted line in that bottom arc, though the top arc is ok.

 

 

All the way up to layer 13, last layer of just walls.

 

Then, starting at layer 13 till 16, when the top layers start, it prints the 3 walls just fine.

 

Attached, the 3mf file in case it helps.

 

Does anyone have any clue as to how I can solve this?

 

CFFFP_20200527_BACK STANDOFF.3mf