I know that the STL format specification requires 3D models should always be represented in the positive coordinate space and therefore the FME STL writer automatically moves all the vertices to (1,1,1) or greater space if the source 3D model has a vertex less than (1,1,1).
However, actually it seems to be usual to use STL datasets with verteces in the negative coordinate space, and also we sometimes would be required to create such ones.
See the sample STL files publised in this web page, for example.
https://ozeki.hu/p_1116-sample-stl-files-you-can-use-for-testing.html
It would be great if STL writer could write 3D models with 0 or negative coordinates into the destination datasets, just as the source geometry was.
