Skirt Problem when basic shape consists of more than one part

[powtac]

I do have a model which consists of two shapes in the very first layer. Slic3r throws an error when starting to slice this model. But when I set the number of Skirt Loops to 0 it works.

[alranel]

Can we know what error is it? or is it a secret?

:-)

[triffid]

http://catb.org/esr/faqs/smart-questions.html#intro

I print plates of multiple parts with skirt all the time

[powtac]

The errorous file

[powtac]

@triffid It's one single part but it is divided at the very first layers...

[triffid]

that STL is extremely non-manifold. See http://www.shapeways.com/tutorials/fixing-non-manifold-models for a few types of non-manifoldness

slic3r is only expected to work correctly with manifold STLs

http://cloud.netfabb.com might be able to sort it out

[powtac]

Thanks for the answer @triffid! I will check this out.

[alranel]

@triffid's answer is definitely correct, however Slic3r shouldn't be exposing that internal error and it should provide the usual user-friendly one. I'll leave this issue closed and I'll link it to #180 which already covers the issue.