When you say you have to export the model, what exactly are you going to do with it?
If you plan to run it in Cosmos/M, NASTRAN, or ANSYS it might be the way to go.
ND,1,0,0,0 places a node numbered 1 at the origin.
ND,,1,0,0 places node number 2 at 1 on the x and 0 on both other axes.
EL defines elements
RC defines real constants
MP defins material properties
This is all documented in the Cosmo/M documentation. Such methods are quite common in the FEA world. ABAQUS, ANSYS, NASTRAN and many others use various text based systems to specify geometry and mesh.
The geometry exports from Simulation are undocumented commands, but if you know something about NURBS you will recognize them as defining NURB curves and surfaces.
The geometry exports also define something called CTs, REGIONS, POLYHEDRA and PARTS, not to be confused with SW entities. They are uneditable. PT, LINES, SURFACES are editable.
geo files are all bases on a single global coordinate system for nodes. But othe CSYS are defined for geometry and load application.
The whole thing is very systematic, but not what you would call user friendly.
That's exactly what I was looking for. Thanks a lot. My main problem was that I was expecting to see 4 nodes associated with each tet, but I guess solidworks is using quadratic elements since there are 10 nodes associated with each tet.
You have control over which elements SW uses. 4 node tets are called draft mode mesh.