Hi clement,
Thanks for your input.
It took I some time before i got rid to the Rhino Common code also thanks to this item From Python into Rhino Common
The code is still not optimissed may be someone could modify it and reply
But It works.
Nico
test BrepEdgeSplit.3dm (160.8 KB)
test BrepEdgeSplit.py (1.0 KB)