This is a heads up: go download the most recent version as it contains nice improvements and *very* important bugfixes.

The full announcement is at [slic3r.org]

Just tried to user Slic3r 0.8.4 to slice an HDD adapter (4th download on this page) and only one half of the bracket appears. I tried multiple profiles and got the same problem each time. Not sure what's going on here, or it it was a problem in previous versions.

richgain

OK, I worked out what the problem was. The designer or the object mirror flipped one half and didn't correct the face normals.
If you enable ''draw normals' in Blender, you can see that one half has blue lines and the other one doesn't.


Using Ctrl-N to reset the normals fixes this.


Now the model slices correctly in Slic3r.