Sparse mode vs. Solid Mode
fdmONLY.com, fdm ABS Prototypes

    Catalyst software “slices” the .stl file and creates the “toolpath” for
the dimension printers.  This is the software that the model is
oriented in for the most efficient printing available.  Sparse means
that the internal parts of the model are ‘web-like’ with the outer walls
of the object being approximately .06 of an inch thick.  This Sparse
Mode is a plastic and a time saver.  Most models- by nature have no
reason to be ‘solid’, however, some are actually working models,
and strength and stability are an issue, so solid can be the internal
structure.  Please click on  the pictures of this square block which
shows the internal “sparse mode” structure in large size.
Solid Vs. Sparse
"Sparse"
example
Click for 'large view'
Click for 'large view'
"Solid"
example
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