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The model size in gcode is 1 mm different from .stl file model

dominatedominate
in Slic3r
Hello,

I have a problem about size of the 3d model that is generated by my printer. The problem is like that. For example the size of the 3d model in .stl file is 40 mm. In the gcode it is generated as 39 mm. Why these two are different? Should i make a slic3r setting?

Comments

  • RepetierRepetier
    Gcode is the center of extrusion and extrudes left and right. So gcode size must be external width - extrusion width for correct result. You will normally get an extra error from wrong extrusion width/height/steps per mm from belt stretching/wrong steps per mm in extruder/jitter while extruding. That should be much less then 1mm.
  • dominatedominate
    ok thank u very much for the explation
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