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Reduce or eliminate travel when retraction is not an option


JohnInOttawa
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Posted · Reduce or eliminate travel when retraction is not an option

This is related to a cross post in tips an tricks.  I have a TPU print that seems to have excessive travels across a feature, each one creating a string and roughness along the inner wall.  Is there any technique, setting, plug in or other suggestion to force the travel moves to take place within the boundaries of the walls?  I know this would greatly slow down the print, even if it were possible.  Time is not a factor but print quality is.

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    Posted · Reduce or eliminate travel when retraction is not an option

    Hi John,

     

    You should try burtoogle's latest master version, the stringing problems is much less in this version.

     

    Here you'll find it: https://www.dropbox.com/sh/s43vqzmi4d2bqe2/AAADdYdSu9iwcKa0Knqgurm4a?dl=0&lst=

     

    Also, some of the previous versions of cura may work better.

     

    Thanks

     

    Torgeir

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    • 3 weeks later...
    Posted · Reduce or eliminate travel when retraction is not an option
    On 5/27/2020 at 11:22 PM, JohnInOttawa said:

    Thanks!  Will try that.

     

    Cheers

    John

     

    did you find a setting to reduce the stringing on ultimaker tpu 95a?

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    Posted · Reduce or eliminate travel when retraction is not an option

    Hello David.  I was using Cheetah, I did find the newer version of Cura better, but mostly it was improved with adjusting printing orientation.

     

    Cheers

    John

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    Posted (edited) · Reduce or eliminate travel when retraction is not an option

    Hi John,

     

    Yes the newer Cura is very good for some of the problematic issues, as "adaptive layers" for the overhang (among many thing), -there is just nothing compare to this printing without support up to 90 degrees!...

     

    However, for the issues you've address here, there is a "secret" (IMO) version of CUra that's outstanding and this one is hiding the travel lines inside the wall very well.

     

    An Old version -right, this is Cura 2.3.1.,!

    A high number of my very best prints is sliced with this version and I'm still using it very much.

     

    Note: Cura 2.3.1  do not have its own gcode viewer. But else a winner....

     

    But make sure, if you'll try this version,; that's combing mode is off and that Z hop when retraction is not enabled.    Very important!

     

    If you like I can show the difference between the versions is alike.

     

    Good luck

     

    Regards

     

    Torgeir

     

    Edited by Torgeir
    Additional info.
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    Posted · Reduce or eliminate travel when retraction is not an option
    3 hours ago, Torgeir said:

    An Old version -right, this is Cura 2.3.1.,!

     

    Are you saying not to use 4.6.1?

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    Posted · Reduce or eliminate travel when retraction is not an option

    Hi davidbitton,

     

    I'd never said so, but if you need to avoid traveling marks in "some" model you make, this old slicer may be the one to use for such a model.

     

    I do really also use Cura 4.6.1 !  Actually a number of versions of Cura, including S3D.

     

    Regards

    Torgeir.

     

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    Posted · Reduce or eliminate travel when retraction is not an option

    I walked away from S3D. 

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    Posted · Reduce or eliminate travel when retraction is not an option

    To bad, the gcode monitor in S3D is the best there is IMHO.

    When it come to details, there is nothing as I'm aware of, that shows details as good as S3D.

    Also the process of replaying the "head track", as lines build up give you much information.

    Hmm. Lots of people name this part as "simulator", but it is just a replay function.

     

    Here is an example of a detail from a Fan Duct Holder print.

    The print is sliced very well, but have some artifact that is not a failure of the printer..

     

    Here is a picture of the actual printed (detail) part:

     

    Detail_Fan_Duct.thumb.jpg.3fc51eee34cb76b8be7bdcf541441e39.jpg

    Here you can see the problems, yes small but...

     

    -----------------------------------------------------------------------------------------------------

    Here is the detail picture of this sliced model shown with gcode viewer in Cura 4.6.1:

     

    Detail_Fan_Duct_Cura_461.thumb.jpg.d252c4e5b4502de59f4eae5e04103870.jpg

    No fail is shown here, so you may think this is your printer?

     

    ---------------------------------------------------------------------------------

    Here is the detail picture of this sliced model shown with gcode viewer in S3D:

    Detail_Fan_Duct_S3D.thumb.jpg.4b85a83581b4b6e6d5de55d313b7262f.jpg

    Here you can see the problem, so my printer is ok.. 

     

    This is just an example of how important it is to use good known tools to avoid long waiting and many tries before a success.

    Well, some said good tools is half of the job..

     

    Just my thoughts.

     

    Thanks

     

    Torgeir

     

     

     

     

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    Posted · Reduce or eliminate travel when retraction is not an option
    2 hours ago, Torgeir said:

    When it come to details, there is nothing as I'm aware of, that shows details as good as S3D.

     

    A little bit off-topic, but if you like a detailed gcode preview, you should take a look at Craftware... I'm just saying... 🙂

     

    grafik.thumb.png.9cda0f3fe746f9fac5e8dcd31ece1e34.png

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    Posted · Reduce or eliminate travel when retraction is not an option

    Thank you.

     

    I'm going to investigate this thing for sure.. 

    (But disagree very much in naming our printed objects 2.5 D, they are really 3D object, so I'd rater said; welcome into the digital world...  🙂  )

     

    Torgeir

     

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