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Cura vs Blender vs FreeCad Units Settings

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Posted · Cura vs Blender vs FreeCad Units Settings

Set up Units setting in FreeCad to mm then import into Cura excellent results

Set Units in Blender to m or mm or cm import into Cura scales model up to ten thousands percent or more

Imperial units in Blender Cura goes crazy no original model even using "convert to metric" plug-in


is their a solution to this problem?




Cura 4.8 Blender 2.92

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    Posted · Cura vs Blender vs FreeCad Units Settings

    I don't know but what I do know is this:

    STL files do not store units.  There is no unit.  Cura assumes the unit is mm.


    Most CAD programs allow you to choose the unit when you save to the STL file (this is different from the working unit in the same CAD program which could be for example inches).


    When you load an STL, if it is "too small" it enlarges by I think 100X (which is 10000%).  I'm not sure what "too small" is but I think around 3mm maybe?  This 100X option is in the cura preferences (not the slicing settings) and can be disabled.


    If you know the STL is in inches then scale up by exactly 25.4X (2540%).  If you know the STL is in cm then scale up by 10X.  And so on.  You will always get perfectly scaled parts.

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    Posted · Cura vs Blender vs FreeCad Units Settings

    thanks for the tips .....good suggestions

    the mesh tool plug-in works well but needs a little touch up

    for example, xyz locations in Blender should be set to zero in Cura otherwise the model is far far away from the build plate....Good Job overall

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