[Gmsh] typical steps after importing .stp file

[Sangpil Yoon]

dear experts.

what should be the typical steps to perform right after importing .stp file
into gmsh to clean duplicate geometries like lines and surfaces?

currently, i save it as .geo file and add one line "Coherence;" in the end
of the file.

otherwise, i find duplicate geometries will generate duplicate nodes when i
do mesh.

for ver. 2.5, if i do Option > Geometry > ' Cut and Merge Faces
(experimental) ', the gmsh will crash.

or are there steps i need to do in generating .stp file (I use solidwork)
before i export?

many thanks in well advance.
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