3D DXF to G-Code converter?

This may be an old topic, but I'm trying to track down a few 3D DXF
(or STL) to G-code converters to try out. I have ACE Converter from
Yeager Automation, but it does not handle the 3DFACE entity that my
3D program spits out. STLwork is another option, but at $400 it's
more than I want to spend.

I remember looking into software like this a year or so ago and
coming across some interesting shareware/freeware converters.
Unfortunatley my internet searches have come up empty. I remember one
in particular that was on an overseas website - Finland maybe? I
dunno.

Anyhow, if anyone can drop me a note with some options I'd appreciate
it. My goal [for this project] is to cut topological relief maps into
plastic or metal.

Thanks,

Jeff