Conversion of STL format (3D printing) to EPS format (paper printing on PostScript printer) is probably possible and used when you want to print the 3D model as 2D picture on paper, probably for previewing or sharing purposes. This can be done in some 3D graphics tools with PostScript support.
Convert Stereolithography CAD file to Encapsulated PostScript file.
We have found 2 software records in our database eligible for .stl to .eps file format conversion.
Microsoft Windows software - convert stl to eps on Windows
A 3D CAD translation softwate
Convert from stl file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned stl to eps. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A widely-used 3D animation application from Autodesk