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Re: [femm] Problem with my very first design



tano1938 wrote:

Well, I finally got my first design input into femm (thanks to a lot
of help from Dave) and when I try to run the solver, I get the
message that "material properties have not been defined for all
regions." I tried many changes but I always get the same message. The
downloaded file is "FRT_OLD.fem." It is the magnetics for a simple
voice coil motor. Can someone please help.

Thanks

This could be a "bad DXF" import example--there are a bunch of nearly coincident points in the geometry that make sliver-thin regions with no material definition. The "easy" cure is to specify a bigger number for the tolerance in the DXF import, so that these nearly coincident points stand a better chance of getting consolidated. Anyhow, I put a modified version that I manually checked (run triangle and look for regions with a super-fine mesh to identify problem areas) at:
http://groups.yahoo.com/group/femm/files/frt_mod.fem


Dave.
--
David Meeker
email: dmeeker@xxxxxxxx
www: http://femm.berlios.de/dmeeker