Ok, I've attached the model. It is generated by software that I built. Slightly different but similar models do not cause the issue. Thanks for taking a look.
FreeCAD says that it has "flipped normals". I un-flipped them and it now looks to slice OK. The Cura mesh tools didn't barf on the original file. Should it have done @ahoeben?
Ok, thanks for the information! I've gotten conflicting information, because I have read that blender would show any faces with flipped normals in black. I don't fully understand how normals work, so I've had to do some guesswork in my code. If someone can tell me an algorithm for detecting if my normals are facing the right direction, or a further explanation of how Cura uses normals, it would be much appreciated.
thanks, brianEdited by bkrahmer
Hello @bkrahmer, that sounds like it is an issue with the model. Could you please attach it to this thread. Thanks.
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