Trouble with Slic3r calibration
Have a look at the image. On the left is a solid 20x20x10 calibration cube; on the right is a single shell calibration piece as per the Slic3r extruder calibration method. Both were sliced by Slic3r.
http://i632.photobucket.com/albums/u...lib_resize.jpg
All relevant setting were filled in as required. All extrusion diameters were set to 0.4mm. I then printed the single shell item. Shell thickness cam out at exactly 0.4mm. Great. Looks very smooth and clean. Left extrusion multiplier on 1 as the shells were on size. Next I printed the solid cube as a test and well, you can see the result above.
I followed the calibration instructions very closely. I tried 3 brands of filament. All filaments were measured in multiple places (10 to 15 measurements over a two metre length per spool). The bed is levelled. My thinking is that if the extrusion multiplier is spot-on for a single shell print then it should work for any print. The height of both prints is right (10mm). But the sides are telling a different story i.e. very rough in the solid cube, smooth in the single shell.
Interestingly they are both over-size in X and Y. I always scale up my models by 0.7% to compensate for shrinkage. In Makerware the cube then comes out at 20x20, however in Slic3r the same model comes out at 20.15x20.15. This shouldn't happen either.
Some possibly helpful info:
FFCX
Makerware 2.4/Slicer 1.2.9 (both x64)
Material: ABS (Esun, Flashforge, local brand)
Feed: 50mm/s
Extruder temp: 225
Layer height: 0.1mm
I feel am missing some simple step but cannot see it. Thanks.