ormerod ignoring perimeters

Hi,
I just sat down and tried to print the big blue fan duct (http://www.thingiverse.com/thing:305990).

At first I just got annoyed when it started to make spaghetti and started the print again. But at exactly the same point it started the spaghetti frenzy all over again. First now I realized (DOH), that a huge amount of the walls had been left out of the actual print. The brim prints fine, (see picture).

[www.dropbox.com]

How do I slice the stl so my ormerod realizes that the wall (all of them) must be printed? thanks

I use slic3er.

I've posted some of my slic3er code

; generated by Slic3r 1.0.1 on 2014-07-23 at 14:02:21

; layer_height = 0.24
; perimeters = 2
; top_solid_layers = 4
; bottom_solid_layers = 3
; fill_density = 0.2
; perimeter_speed = 30
; infill_speed = 50
; travel_speed = 60
; nozzle_diameter = 0.5
; filament_diameter = 1.75
; extrusion_multiplier = 1
; perimeters extrusion width = 0.85mm
; infill extrusion width = 0.87mm
; solid infill extrusion width = 0.85mm
; top infill extrusion width = 0.85mm
; first layer extrusion width = 0.48mm

G21 ; set units to millimeters
M107
M190 S70 ; wait for bed temperature to be reached
M104 S195 ; set temperature
G1 Z5 F200 ; lift nozzle
G1 X2 Y50 F2000; Go to wait for warm position
T1; Select extruder
M109 S195 ; wait for temperature to be reached
G90 ; use absolute coordinates
M83 ; use relative distances for extrusion
G1 F1800.000 E-2.00000
G1 Z0.252 F3600.000
G1 X80.072 Y65.633 F3600.000
G1 E2.00000 F1800.000
G1 X85.888 Y59.818 E0.41731 F900.000
G1 X114.112 Y59.818 E1.43209
G1 X119.928 Y65.633 E0.41731
G1 X119.928 Y69.308 E0.18645
G1 X120.212 Y69.592 E0.02036
G1 X126.112 Y69.592 E0.29939
G1 X126.265 Y69.744 E0.01093
G1 X126.443 Y69.818 E0.00978
G1 X138.112 Y69.818 E0.59211
G1 X143.928 Y75.633 E0.41731
G1 X143.928 Y93.858 E0.92470
G1 X138.112 Y99.674 E0.41731
G1 X128.888 Y99.674 E0.46805
G1 X126.461 Y97.247 E0.17410
G1 X126.283 Y97.174 E0.00978
G1 X125.717 Y97.174 E0.02876
G1 X125.539 Y97.247 E0.00978
G1 X123.112 Y99.674 E0.17410
G1 X122.462 Y99.674 E0.03301
G1 X122.178 Y99.957 E0.02036
G1 X122.178 Y105.534 E0.28295
G1 X122.462 Y105.818 E0.02036

Hi,

your extrution withs are very strange. I think you should try to use the defalt slicer settings (download over git) form reprappro.

Edited 1 time(s). Last edit at 07/23/2014 11:37AM by muggi.

Well spotted muggi! I don't know where I got those strange settings from.

Now the printer seems to fortify the the fanduct with walls, . Obviously the walls must've been to thin, and therefore slic3er disregarded them.

Thanks!