STL check for meshes, and T intersection removal
STL export
better triangle combining (Simplify()) for meshes
DXF export
compress file format (binary?)
partitioned subsystems in the solver
arbitrary color specification
specify tolerance for meshing
specify light positions (all on one configuration screen)
TTF font text
display with proper formatting/units
more measurements
reference dimensions (just to look at, no equations)
some kind of rounding