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Error-Mesage - and no error to seen


Lupus52
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Posted · Error-Mesage - and no error to seen

Hello,

 

with some parts I get an error  ""The highlighted areas indicate either missing or extraneous surfaces. Fix "

"your model and open it again into Cura.""

 

But there is never any error highlighted. ūüėě

 

And slicing works correct. What can I do to avoid these errors or get a better Info what ist wrong?

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    Posted · Error-Mesage - and no error to seen

    The model is likely non-manifold. It's not a guarantee that the model will fail (as you've already found).

     

    These areas can be very small, making it hard to see them.

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    Posted · Error-Mesage - and no error to seen
    1 hour ago, nallath said:

    The model is likely non-manifold. It's not a guarantee that the model will fail (as you've already found).

     

    These areas can be very small, making it hard to see them.

    A meaningful explanation of errors is a must for any decent programmer. Just to say: There is a error and no other indication is in my eyes a sloppiness!

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    Posted · Error-Mesage - and no error to seen

    I think you missed the last part: 

    3 hours ago, nallath said:

    These areas can be very small, making it hard to see them.

     

    So the indication is there, but could be very small, so you have to zoom in and search for the red area.

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    Posted · Error-Mesage - and no error to seen
    15 minutes ago, Smithy said:

    I think you missed the last part: 

     

    So the indication is there, but could be very small, so you have to zoom in and search for the red area.

    I zoomed in and rotated to all faces and there is no marker to be seen. This is the problem I meant!

     

    The programmers should make a red circle around or an arrow to the point - enough great to see what and where some error is located! This error occurs mostly with ready parts (stl) from thingiverse and other sources. But I had it too with own constructions.

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    Posted · Error-Mesage - and no error to seen

    Hello @Lupus52.  I have not yet had a part that Cura indicated had a problem which did not have a problem.  Usually I open the model file in MS 3D Builder for the repair.  I have used on-line repair services successfully as well.

     

    The errors can be very small.  A seam may be open by .001mm which would be exceedingly difficult to display on the monitor.  Cura is a very good slicer.  It is not a CAD program, or STL repair program, or assembly modeler, etc.  I think the fact that it knows there may be a problem is the big thing.  Being able to point directly at a surface and say "this one is backward" or to a seam and say "This one is open" might be interesting, I just don't think it would be useful.  I still have to open it in another piece of software to fix it.  The repair is made without me having to tell the software where the issues are.  It just fixes them if it can.

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    Posted · Error-Mesage - and no error to seen

    Many words - but no solution to the problem! The problem is, that Cura does not mark the errors in a normal and useable way! If a marker is so small that I can't see it, the marker is senseless! Where is the problem to show a large enough red circle or arrow to the place with the error? And to explain in normals words like "Too much distance between to faces" - and the marker is at this place. I don't want to use external programs to find errorplaces! This is a work for Cura when it detects an error!

     

    Until now, I ignored all such errors because the job always was done without problems. But it is annoying when a program tells "Error" and does not tell what and why. It is like stupid Windows-errors. "An error occured!" - And you search and search .....

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    Posted · Error-Mesage - and no error to seen

    Hello, you can check this help from Cura support: https://support.ultimaker.com/hc/en-us/articles/360014055959-Why-am-I-getting-Your-model-has-missing-or-extraneous-surfaces-popups-in-Ultimaker-Cura-

    Try to zoom and rotate around the model to find the nonmanifold part or you can use other software to fix the nonmanifold part automatically if you couldn't find it.

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    Posted · Error-Mesage - and no error to seen
    39 minutes ago, 3dsage said:

    Hello, you can check this help from Cura support: https://support.ultimaker.com/hc/en-us/articles/360014055959-Why-am-I-getting-Your-model-has-missing-or-extraneous-surfaces-popups-in-Ultimaker-Cura-

    Try to zoom and rotate around the model to find the nonmanifold part or you can use other software to fix the nonmanifold part automatically if you couldn't find it.

     

     And another helpless post! What do you think, how often I have zoomed and turned in all directions?

    I don’t want to use other software! It is Cura's turn to show an error in usable form!

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    Posted · Error-Mesage - and no error to seen

    "...It is Cura's turn to show an error in usable form!"

    I'm trying to understand.  One thing (among many) that I don't understand is what would be a "useable form".  In the screenshot below we see that MS 3D Builder has found an error in the Benchy.  It is indicating "errors" by showing a red square around the base of the model.  There is no more specific indicator than that.  It successfully repaired whatever errors it found.  (I think it's a little funny because I originally altered the model in MS 3D Builder and it didn't show any errors at the time.)

    BenchyWarning.thumb.png.f78355ec99fabd24cf698c9df65c4403.png

     

    I uploaded the same file to https://formware.co/OnlineStlRepair.  It also repaired the model and provided this report:

    -> Analyzed your file:
    --> 0 Naked edges (?)
    --> 0 Planar holes (?)
    --> 0 Non-planar holes (?)
    --> 38 Non-manifold edges (?)
    --> 41 Inverted faces (?)
    --> 342 Degenerate faces (?)
    --> 38 Duplicate faces (?)
    --> 0 Disjoint shells (?)

    -> Repairing: 100.00%

    ----- Repair completed in 220617ms ------
    -> Vertex count changed from 131008 to 126312 (-4696)
    -> Triangle count changed from 262516 to 253830 (-8686)

     

    This indicates there were 459 errors in the model.  I had guessed that the errors are around where I added "Greg" to the transom and it didn't mesh with "#3D Benchy" very well.  What would I do differently if it did have 459 indicators showing the problems?  (BTW my personal record for the number of errors in a model posted here is 35,000.)

     

    Here is the same file opened in MeshMixer.  I think it's safe to assume that the red lines are where there are errors.  MeshMixer is built for this sort of thing.  I would not use it to slice the model...it's not what it's good at.  It also successfully repaired the model.

    3DBenchyGregMeshMixer.thumb.png.f9c1bea143c4fa97572ea940b1cd0536.png

     

    I'll leave this now, but in closing I have this poor analogy:

    I'm a bit of a motorhead and I have a lot of tools in my toolbox.  I pick the tool for a specific job based on the requirements of that job.  As an example - I own 12 hammers.  I would not use a 3lb mallet to put in a carpet tack, and I would not use a tack hammer to pound a bearing out of a wheel even if the tack hammer was already in my hand.  I would (hopefully) pick the right tool for the job.

    I have always found it "useable" that Cura points out that a model needs repair.  There are other tools that are a lot better at doing those repairs.

    Among the many things that I don't understand is what a "degenerate face" is.  I really don't care as long as it gets fixed.

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    Posted · Error-Mesage - and no error to seen

    I don't want to dance in a circle! Therefore, I give up with this point.

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