Weird results with thin wall

Hi im printing 3d object looking like small cup.
Im trying several slicers (skeinforge, slic3r, kisslicer) wit some weird results on skeinforge. Results on slicer looks nearly similar. Best result is with kisslicer, but there is another problem wit spliting surface to 2 semicircles with wisible seam.



This can by prevented by setting all "Extra shells" to 0.

Looks like problem is with shell generating procedure...

Your extrusion width is not suiatble for the distance between the outer walls.
You have to decrease the width/height (ratio)

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[github.com]

That was first i have tried and it does not work... (kisslicer can slice it "normally")
Would be nice to have algorythm which will do:
1. decrease automatically width to complete inside loop
or
2. use 1 loop instead trying insert two partially
or
3. do not try to add 2nd loop if it cannot by added fully and insert infill instead

Edited 2 time(s). Last edit at 08/09/2012 10:08AM by zemciko.

can you upload your file and settings? preferably slic3r.
Maybe your vase gets wider to the top and the slicers consider the layer as a bridge layer, overriding your regular width settings...

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[github.com]

Here it is.
slic3r.ini
gcode
STL

Btw i have alredy printed nearly perfect result by decreasing number of perimeter loops to 1. With 0,25mm step is result realy amusing. We have new profi fdm printer in work and this looks like same quality!

first attempts (dark color indicates problematic place, violet part is broken original)

final print with nearly perfect result.