[New support material method.]

I still have a problem with sharp overhangs. Here is the STL model file.

https://www.dropbox.com/s/p1u03sp8t7m0n6s/print.zip

You can see it prints out in the air. Would there be any luck to have this one printed in the new version?

 

[Cura 13.07 thin walls issue]

Hi guys,

I am trying to use the new 13.07 Cura engine downloaded directly from Github (https://github.com/Ultimaker/CuraEngine). It works significantly better than 13.06 on thin walls, but I still have problems with it. I think it's worth reporting here because Daid and other people seem to be actively working on this issue.

My model is a cone shaped hollow structure with its wall thickness varying smoothly from 1.2mm to 0.8 mm, from the bottom to the top. The following picture is a successful print on 13.07.

On 13.06, I had too many blobs generated (and gave up a full print), as shown below:

However, I still have problems with 13.07 in the transition layers from 1.2 mm to 0.8 mm, which can be seen in the detailed pictures below:

 

The random blobs shown in the picture were from unexpected retractions. And (more seriously) there were a few critical layers which showed random movements of the head and resulted in many blobs and strings inside the cone, as in the picture below:

 

I uncommented the following two lines in the source code and commented out line infill. The problem above happens for both of the infill types.

int sparseSteps[1] = {config.extrusionWidth};

generateConcentricInfill(part->skinOutline, fillPolygons, sparseSteps, 1);

Some important parameters I adjusted:

Layer height 0.2 mm

Shell thickness 1.3 mm

Print speed: 60 mm/s

Retraction speed: 30 mm/s

Retraction distance: 4.5mm

Here are my STL model and gcode file.

https://www.dropbox.com/s/svyeo5lv2r0wwwp/cone.zip

I can help as far as I can, like printing again with modified source code, or even playing around with the source code if somebody gives me some idea.

Best regards,

Gloine

 

[Cura 13.06.4 not handling support properly]

Thanks, I hope it to be fixed soon. The new version is really fast though.

Regards,

Jaehyung

 

[Cura 13.06.4 not handling support properly]

Hi guys,

I am trying to print something which needs support structure using Cura 13.06.4. The new version seems to have some problem as in the gcode below:

https://www.dropbox.com/s/n27jzjyjbk8e6ru/print.stl

https://www.dropbox.com/s/x8ii34bhmxqp3ao/print.gcode

In short, it does not generate support for some part and prints in the air. Older versions of Cura are doing fine.

So I am sticking to 12.08. Would there be any solution for this?

Regards,

Jaehyung

 

[Wall thickness doesn't apply to some layer]

I just digged into the skeinforge code and found that the following three lines in fill.py caused the problem (line 884-886):

 

		if rotatedLayer.rotation != None:		extraShells = 0		self.distanceFeedRate.addLine('( %s )' % layerRotation)

 

It seems that if there is a layer which needs some bridging, skeinforge tries to move straight only. It makes sense in general but not for my case...

So I commented them out and now everything is fine.

[Wall thickness doesn't apply to some layer]

That's a bad news...would there be any hint where should I look into?

Thanks for the reply though, now I know this wouldn't be an easy problem at least...

[Wall thickness doesn't apply to some layer]

Hello,

I am trying to slice an STL file with Cura 12.08. The problem I have is that my wall thickness setting doesn't apply to some (important) layer. Here is the model I want to print:

The STL file is here: https://www.dropbox.com/s/nxctctzmx05k61j/turbin.stl

I changed the wall thickness setting to 12 mm to make a concentric top cover, to save me from dangling infill lines.

(This is the only option I've changed from the default. I need to handle retractions later to successfully print it though.)

Unfortunately, I have the following unexpected 111th layer.

The 112th layer is fine as follows:

The height of bottom layer is 1mm, the blades 21mm, and the top cover 1mm.

Any idea why this happens?

Thank you.

Regards,

Gloine