Actual print size of an object.


I have a feeling that this has been asked before, but I just printed an object with the outside dimension on my object being 52.5mm,

The actual print came out at 51.5mm. I know I've run into this before but it eludes me.  Where and what do I change to get a more accurate sizing?




  • 0.2% could be an wrong steps per mm in firmware. It's not always what you compute from belt pitch as tension could make it longer a bit. Test printing 100mm and see if it still elonges linear it is steps per mm.

    Or you have under extrusion. In that case all boxes have the same error measured in mm.
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