TypeError when using mandoline on my .stl file

[nneibaue]

Hello! First of all, thanks for the awesome library... I'm excited to get into it.

I am having an issue running mandoline with my own stl file... here is my command and the stack trace:

I did not have this problem when using the cube.stl file included in the test models. Is there something wrong with my stl file? I can't upload it here, but I can send it to you for testing if desired.

Thanks!

[Spiritdude]

It's related to that mandoline consider the normal vector in STL, whereas most software (importing & exporting) ignores it. A normal vector in your STL file is likely 0,0,0 - I can't provide an actual fix yet as I don't understand the last error message.

[Spiritdude]

I know now the problem, two issues in vector.py:

• def normalize: it must be l = self.length() add "()"
• def __div__ must be changed to def __truediv__ (python 2 vs python 3 issue)
  but there are other issues with extrusion calculation - I'm currently extending mandoline a lot, I actually got a 20mm cube printing properly, but my working style doesn't align well with git, so I end up with a larger PR soon.

[Spiritdude]

I just synced my repo https://github.com/Spiritdude/mandoline-py with many fixes and some improvements; you might like to test it before I make a PR (I'm a newbie with Python, and struggled with developing the code without build/install so I had to change most imports; locally testing and build/install worked for me but like to get feedback from others).