Add text to the intended model
Prusa’s official text-tool guide documents selecting the model and pressing T, or using Add part > Text from its context menu. It also describes Add shape > Text for a standalone object. Choose between attached lettering and a separate object before adjusting its appearance.
Use an available font resource
PrusaSlicer’s guide says its tool imports the device’s font library and supports TrueType fonts. After installing another font, close and reopen the text tool to load it. A browser’s decorative Unicode preview is not the same thing as a locally available TTF resource.
Choose embossing or debossing
The documented Added mode embosses text, while Subtracted makes a negative volume for debossing. Save a preset when repeating font, height, depth and advanced settings. Compare the resulting geometry rather than assuming a successful text preview establishes physical print performance.
Judge the complete word
Look for small counters, narrow gaps and isolated strokes in the intended model. Try a simpler alternative if decorative detail overwhelms the available space. Keep an editable project so changing a name or serial number does not require rebuilding the lettering from a flattened picture.
Your questions, answered.
Is one family best for every 3D print?
No. Word length, geometry, size and output process influence whether the letters remain useful.
Must PrusaSlicer restart after a new TTF is installed?
Its text-tool guide says closing and reopening the text tool loads newly added fonts.
Sources & background
Sources supporting this page’s explanations. Practical examples are our editorial suggestions.