For a "solid" look that feels more like neon tubing or handwritten script, you can use the tool. Select the Tube tool and draw your letters.
If you need specific fonts or perfectly geometric 3D text, it is often easier to generate the file externally and import it. NomadHD
Use a free web tool like Text2STL to type your text and download a .stl file. For a "solid" look that feels more like
: Go to the Mask menu and select Extract . This creates a new, solid 3D object from your masked text. 2. External STL Conversion NomadHD
This is the most common way to get clean, solid 3D letters directly inside the app.