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Combing - not working as expected


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Posted · Combing - not working as expected

Hello,

I read about the function Combing, which should force the nozzle to move / or not to move over printed areas.

 

Now, I have a massive stringing problem with my printer and it could be reduced, when the nozzle would travel only over areas, where in the same or previous layer it was beeeing printed. But, as You can see in the STL picture, the nozzle takes the direct way. e.g. from A to B or from B to C.

 

1538859894_GB_Inlay-MarklinC45-UltimakerCura.thumb.png.e4dfee575842c09f5ed7ce52775eae55.png

 

These movements I have in the 3D print as strings.

 

Is there a way to force the printer to move not directly from A to B but go over the right wall and then turn left to point B?

 

I know, better would be to solve the stringing problem, but it wasn't yet successful.

 

Thanks,

Moritz

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    Posted · Combing - not working as expected

    No dingbat, that's still not right. You did File -> Export but you have to do File -> Save.

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    Posted · Combing - not working as expected

    OK, next try.

     

    What is the difference between "Save" and "Export", when both create a 3mf file but with different sice?

     

    Greetings,

    Moritz

    GA_GB_Inlay-Marklin C4.5-save.3mf

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    Posted · Combing - not working as expected

    Export just includes the model(s) but Save includes the models and the settings. I have requested that UM alter that menu to make it more obvious but they weren't interested.

     

    Anyway, when I slice your project I don't see so many direct travels as your image shows, what version of Cura are you using?

     

    Screenshot_2020-04-14_19-13-02.thumb.png.399f93828f0a304176ee50356e6d09ba.png

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    Posted · Combing - not working as expected

    Hi,
    I use the latest Version 4.5

     

    Moritz

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    Posted · Combing - not working as expected

    It becomes worse in the higher layers because of the openings on the sides for the plug connectors:

     

    665105330_2020-04-1420_46_59-GA_GB_Inlay-MarklinC4.5-save-UltimakerCura.thumb.png.c4f3fb66cb6ee794fb132783594e8ca2.png

     

    It's really hard do remove all the strings after printing.

     

    Moritz

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    Posted · Combing - not working as expected

    Actually, I have the exact same problem here!

     

    And it's driving me nuts 🙂

     

    Geert

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    Posted · Combing - not working as expected

    Same here, I try to use combing to avoid stringing but it is definitely not working as it should, and behaving precisely as described in this post. 

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