STL Sliced Import (by Slic3r). Supports OBJ/OFF/PLY/STL as input file formats.
How it works:
- projects an STL file on the X-Y plane by cutting the objects into "slices"
- each "slice" is a group of polygons, with a label indicating its z position
- the polygons are converted to paths for better editing in inkscape
- use Object → Rows & Columns → distribute the slices in a grid
Warning: Requires Slicer 1.3.1-dev (the really latest build possible)
Example to Import