A lamination modeling route generation device (200) is provided with: a modeling route generation unit (202) for generating a modeling route as a route to model divided layers by dividing a laminated modeled object into layers in such a manner that a modeling height of a bead which models the layers does not exceed an upper limit value on the basis of layer definition information which defines a division into layers as units to model the laminated modeled object and a modeling route surface as a surface to restrict a position of the modeling route; and a modeling route modification unit (205) for modifying the modeling route into such a modeling route that a plurality of layers are partially collectively modeled within a range between the upper limit value and a lower limit value of the modeling height.
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