Personal How to avoid travels inside model?

[karabas 1]

I print bented tubes for woodwind musical instruments. Any strings inside are very problematic to remove in postprocessing. I tried many combinations with combing. I still got many travels inside. Is there any way to force nozzle move around?

[GregValiant 1,319]

Load up a model, prepare your Cura settings for slicing, and use the "File | Save Project" command.  Post the 3mf file here.

[karabas 1]

Here it is

CFFFP_neck.3mf

[GregValiant 1,319]

Thanks.

I made a couple of changes I thought might help and I'm attaching my effort.  It looks pretty good and I don't see any moves through the interior of the tube.

I moved the part so the bottom of the gooseneck is at about the midpoint of the build plate.  Using "Z seam relative" with the location at X0 Y0 puts the Z seam direction at the midpoint of the part.  When the part splits and start printing as islands the Z seam of both islands face inward towards each other.  I did the same with the Layer Start X and Y.

Enabling "Avoid Supports When Traveling" also made a difference for the area where the lower support has split into islands.  I set the "Travel Avoid Distance" to 3mm.

 

 

 

 

GV_neck.3mf

[karabas 1]

Thank you, very interesting. About 3 traveles remain, when support structure begins to split. Depends from type of support. I will try

 

[GregValiant 1,319]

The best I've been able to do is 1 move across the tube and it has to do with the support.  I moved the Z seam and layer start to the left front corner of the build plate.

 

GV2_neck.3mf

Edited September 21, 2022 by GregValiant

[MariMakes 199]

Wow @GregValiant to the rescue! Amazing. 🎉

I have nothing to add except maybe if you want to learn more about what the different settings do you can install the Settings Guide from the marketplace: https://marketplace.ultimaker.com/app/cura/plugins/Ghostkeeper/SettingsGuide2

 

In this case I would specifically look at Combing. 
Good luck and happy printing! 😃