3D Autocad (DWG/DXF)
:acad_version - Specifies the autocad_version to export.

values: "acad_12", "acad_13", "acad_14", "acad_2000", "acad_2004", "acad_2007", "acad_2010", "acad_2013"

:faces_flag - Boolean to indcate whether to export faces.

:construction_geometry - Boolean to indicate whether to export construction geometry.

:dimensions - Boolean to indicate whether to export dimensions.

:text - Boolean to indicate whether to export text objects.

:edges - Boolean to indicate whether to export edges.

I haven't managed I need help

` model = Sketchup.active_model
modelpath=File.dirname(model.path)
modeltitle=model.title

clist = []
for c in model.definitions
if c.count_instances > 0 and c.group? != true
clist = clist.push([c.name])
Sketchup.active_model.selection.add( Sketchup.active_model.definitions[c.name].instances )
sel = Sketchup.active_model.selection
#export(modelpath + "/" + c.name + ".dwg",false)
sel.export(modelpath + "/" + c.name + ".dwg",false)
end
end`