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Slic3r PE - can't load stl-file  

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JuLu
 JuLu
(@julu)
Active Member
Slic3r PE - can't load stl-file

Hello,

for testing purposes I genarated a simple quader (15 x 15 x 5 mm) in my CAD program (MegaNC) and exported that as an stl. Unfortunately Slic3r is not able to load it (error message: Loading of a model failed). Re-import into the CAD program works.
There are no specific setting in the CAd program to generate the export so I'm wondering what went wrong. Does anybody has a chance to look over the attached file and could give me a hint what's wrong?

Kind regards
Jürgen

Kind regards
Jürgen

Posted : 23/07/2018 6:52 pm
Olef
 Olef
(@olef)
Prominent Member
Re: Slic3r PE - can't load stl-file

Slic3r won't load this for me either. I ran it through Netfabb and repaired it https://service.netfabb.com/service.php - now Slic3r loads it. I guess your CAD programme does not produce good STL's.

Posted : 24/07/2018 3:38 am
JuLu
 JuLu
(@julu)
Active Member
Topic starter answered:
Re: Slic3r PE - can't load stl-file

Hello Olef,
thanks for your effort. That helps because now it's clear that this isn't a problem of the slicer. I'll contact the manufacturer of my CAD program.

Kind regards
Jürgen

Posted : 24/07/2018 8:53 am
JuLu
 JuLu
(@julu)
Active Member
Topic starter answered:
Re: Slic3r PE - can't load stl-file

Update: Problem solved - as usual, simple, but you need to know the triggers 😉
The STL standard setting of the CAD program was ASCII output, that needs to be changed to binary.

Kind regards
Jürgen

Posted : 24/07/2018 9:33 am
MikeBowe
(@mikebowe)
Eminent Member
Re: Slic3r PE - can't load stl-file

I have same problem with Maya 2018 STL, Slicer won't eat them. Not Slicer's fault, export plugin has been broken for ages:

https://forums.autodesk.com/t5/maya-modeling/stl-export-from-2018-not-working/td-p/7385690

I've been using .OBJ, it works, but needs to be triangulated before export. Export plugin doesn't have an option to do it automatically when exporting which is annoying...

"Better to be a racer for a moment than a spectator for a lifetime"
Posted : 24/07/2018 2:46 pm
Vojtěch Bubník
(@vojtech-bubnik)
Member Admin
Re: Slic3r PE - can't load stl-file

The ASCII STL has an unusual format:

solid Quader
facet normal 0.00000000 0.00000000 -1.00000000
outer loop
vertex 0.00000000 20.00000000 0.00000000
vertex 20.00000000 20.00000000 0.00000000
vertex 0.00000000 0.00000000 0.00000000
endloop
endfacet 0

Slic3r refuses to import the STL, if there is the number after the endfacet word. It is a weird extension.

Posted : 24/07/2018 4:56 pm
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