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Fail to load on STL file I designed


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Posted · Fail to load on STL file I designed

I have an STL file (a simple clevis pin) I created using FreeCAD. It loaded in Cura 4.6.1 and I was able to print it out. I made some adjustments in and exported the design again and now I get this error:

I opened the CURA.log file and find the following:

2020-07-06 21:56:30,774 - ERROR - [Thread-3] UM.Logger.logException [106]: Exception: Exception occurred while loading file D:/Clevis 6_25mm.stl
2020-07-06 21:56:30,779 - ERROR - [Thread-3] UM.Logger.logException [110]: Traceback (most recent call last):
2020-07-06 21:56:30,783 - ERROR - [Thread-3] UM.Logger.logException [110]:   File "X:\4.6-exe\build\inst\lib\python3.5\site-packages\UM\FileHandler\ReadFileJob.py", line 66, in run
2020-07-06 21:56:30,787 - ERROR - [Thread-3] UM.Logger.logException [110]:   File "X:\4.6-exe\build\inst\lib\python3.5\site-packages\UM\Mesh\MeshFileHandler.py", line 36, in readerRead
2020-07-06 21:56:30,791 - ERROR - [Thread-3] UM.Logger.logException [110]:   File "X:\4.6-exe\build\inst\lib\python3.5\site-packages\UM\Mesh\MeshReader.py", line 21, in read
2020-07-06 21:56:30,796 - ERROR - [Thread-3] UM.Logger.logException [110]:   File "C:\Program Files\Ultimaker Cura 4.6\plugins\FileHandlers\STLReader\STLReader.py", line 89, in _read
2020-07-06 21:56:30,800 - ERROR - [Thread-3] UM.Logger.logException [110]:     if numpy.amin(verts[:, 1]) == numpy.amax(verts[:, 1]):
2020-07-06 21:56:30,804 - ERROR - [Thread-3] UM.Logger.logException [110]:   File "numpy\core\fromnumeric.py", line 2442, in amin
2020-07-06 21:56:30,808 - ERROR - [Thread-3] UM.Logger.logException [110]:   File "numpy\core\fromnumeric.py", line 83, in _wrapreduction
2020-07-06 21:56:30,812 - ERROR - [Thread-3] UM.Logger.logException [110]: ValueError: zero-size array to reduction operation minimum which has no identity
2020-07-06 21:56:30,819 - DEBUG - [Thread-3] UM.FileHandler.ReadFileJob.run [71]: Loading file took 0.1 seconds


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    Posted · Fail to load on STL file I designed

    When you exported the file after your change the settings inCura, did you change the extension of the file for .STL? 


    The attached file does not look like a STL file. The file size is rather small.

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    Posted · Fail to load on STL file I designed

    It worked one time and then I adjusted the size in FreeCAD, which is where I drew it, and exported again.


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