Help! Tuple index??

[thisonediesalot 0]

Just bought the Creality3D Ender 3 to get into the hobby. Cura is what we used back in school but I am running into an error that I have never seen before. Any of my files from fusion 360 end up with an error saying "tuple index is out of range" after I slice and try to save. Haven't been able to save any files after slicing. Any help would be greatly appreciated!!

[gr5 2,210]

Maybe the STL file is too big?  Not sure but this is one possibility.

 

How big is the STL file?  I would try exporting a smaller STL file with fewer triangles.  Try to keep it below 1 million triangles (about 50MB).  I usually aim for 100K triangles in my STL file.  You can change the settings in fusion 360 on the export step or you can decimate (reduce) using this wonderful method:

http://www.shapeways.com/tutorials/polygon_reduction_with_meshlab

 

The nice thing about meshlab is that it also tells you how many triangles the STL has when you load it and also again at the bottom of the screen.  Meshlab is quite fast.