The first one is called stl_tools, and it’s a Python library to convert images or text to 3D-printable STL files. The examples shown are quite impressive, and it even does a top notch job of ...

Please ensure your 3D model meets the following printer-specific requirements: File Format— Your 3D model file must be saved in STL (binary.stl) format. Make sure to export your design in "millimeters ...

FreeCAD also supports file formats like STL and OBJ, which are the standard ... such as freehand drawing and sketching, powerful 3D sculpting brushes, image-to-3D model, boolean operation tools ...