File has missing layers in PS but Does fine in CURA
 

File has missing layers in PS but Does fine in CURA  

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jared.vawter
(@jared-vawter)
New Member

I'm attempting to print the following: https://www.thingiverse.com/thing:1698714 and it has a large gap in the middle section:

I have attempted changing "detect thin walls" and changing layer height. Printer is a fully stock MK3S

Posted : 31/10/2020 8:00 pm
JoanTabb
(@joantabb)
Moderator

Hi Jared, 

it is an unfortunate fact that some of the files on Thingiverse are faulty. 

In this case, if you right click on the model, in 3D editor view, a menu will open, 
Choose, Fix through the Netfabb, and then wait while netfabb resolves the issues, and then reslice, you should find that the file then works properly!

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 31/10/2020 10:02 pm
jsw
 jsw
(@jsw)
Noble Member

I've found that PS is indeed less 'forgiving' of many wonky .stl files and when PS fails, often (not always) Cura will give a printable .gcode file.

I've also found a number of models that were downloaded from the 'usual suspect' sites to contain errors of this type.

I've found that the PS fix-it function (said to be Netfabb) will fix some corrupt .stl files, but the stand-alone Netfabb will do more of them.  FreeCAD has a whole menu of 'fix it' options in the mesh toolbench, and again, those will fix some but not all.  One trick I've found with FreeCAD is to import, then convert mesh to shape, then refine shape, then convert to solid, and re-export.  I've found that if that sequence is done without errors, the final re-export will usually (again, not always) be printable.

Then there's MeshLab, which has an overwhelmingly large selection of fix-it functions, but an extremely steep learning curve, even for the simplest fixes, and sucky documentation.

Posted : 31/10/2020 10:23 pm
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