A CAD model of a stamp with raised lettering. Model was created using commercial CAD package: Ashlar-Vellum Argon; exported as STEP AP 203 data, and converted to X3D file using the online STEP browser at http://spri2.kshell.com. Colors were applied using Python-Prolog scripting.
Currently only Octaga 2.0 properly implements the X3D NURBS component, see the following page for status.
Ashlar Vellum Argon; and SPRI browser: STEP-to-X3D conversion: at http://spri2.kshell.com