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Hi together, The pro edition of CAESES comes with a set of algorithms for design exploration and formal optimizations. However, people often already use an external optimization software in their company (such as HEEDS, Isight, modeFrontier, Optimus, optiSLang etc). In this case, one can make use of the batch mode of the CAESES pro edition, in order to automatically generate geometry design variants, using the given optimization tool. I attached a small setup (sweepbatch.zip) which demonstrates how simple this works: sweep.fdb Project file that contains the geometry model along with its design variables.sweep.fsc ASCII file that controls the batch run. It starts CAESES, sets the values of the design variables and exports an STL file. This fsc-file is the one that needs to be manipulated by the external optimization software, i.e. parameterize the values of the design variables (see the "setValue"-command).run.bat Run this file to execute the entire process. The run of sweep.fdb also writes out the number of open edges into a file called "openedges.dat". It is merely a simple check for a closed STL geometry, and this information can be used as well by the optimization tool (geometry validity check). Cheers Joerg PS: check out this related post as well. UPDATE AUGUST 2017: The call in the bat/script file needs to be "C:\Program Files (x86)\FRIENDSHIP-SYSTEMS\CAESES\bin\win64\CAESES_crt.exe" sweep.fsc with the newer versions of CAESES (and not CAESES-FFW). sweepbatch.zip