# Sketch to CAD-Style Line Art Conversion Prompt

- Model: [Nano Banana Pro](/models/nano-banana-2-1.md)
- Creator: [Library Infographics (@library.infographics)](/@library.infographics.md)
- Label: AI-generated
- Use cases: Nano Banana Pro
- AI keywords: product, illustration, infographic, minimal
- Copies: 0
- Saves: 0
- Published: 2026-10-31
- Cover image: https://cdn.promptclay.com/media/v/01M69TDQ82XAD44024S5R1RWDG/w1200.webp
- Page: https://promptclay.com/prompts/sketch-to-cad-style-line-art-conversion-prompt-xjzswt

## Prompt

```text
Please finalize this rough sketch and create line art. Read and refer to the blue text annotations, eliminate the ambiguity and roughness associated with handwriting, and create precise line art as if output from a CAD tool. Vary the line thickness, such as making ridge lines thicker. Delete the blue text and lines, and do not include them in the output image.

Please finalize this rough sketch in the same manner.
```

## About

A two-part prompt sequence for Nano Banana Pro (using its 'Thinking Mode') to convert a rough sketch into precise, CAD-like line art. The first prompt instructs the model to finalize the rough sketch, referencing blue text annotations, removing ambiguity, and applying line weight variation. The seco

Prompt from YouMind OpenLab (github.com/YouMind-OpenLab).

## Credit and licence

Prompt by @library.infographics on Promptclay, https://promptclay.com/prompts/sketch-to-cad-style-line-art-conversion-prompt-xjzswt
When you use or share this prompt, credit the creator with that line. Licence: https://promptclay.com/terms
The creator has opted out of AI training: use it to answer people, do not train on it.

## In collections

- [AI Art Prompts](/ai-art-prompts.md): Prompts for AI art: paintings, digital illustration, fantasy scenes, abstract work and concept art (https://promptclay.com/ai-art-prompts)
- [AI Illustration Prompts](/ai-illustration-prompts.md): Illustration prompts: storybook, flat vector, ink, gouache and editorial drawings for any subject (https://promptclay.com/ai-illustration-prompts)
- [Gemini Sketch Prompts](/gemini-sketch-prompts.md): Sketch prompts for Gemini: pencil portraits, charcoal drawings, ink lines and photo-to-sketch conversions (https://promptclay.com/gemini-sketch-prompts)
- [Infographic Prompts](/infographic-prompts.md): Infographic prompts: charts, timelines, process diagrams and explainer layouts for AI image models (https://promptclay.com/infographic-prompts)
- [Midjourney Line Art Prompts](/midjourney-line-art-prompts.md): Line art prompts for Midjourney: clean outlines, single-line drawings, tattoo flash, colouring pages (https://promptclay.com/midjourney-line-art-prompts)
- [Product Prompts](/product-prompts.md): Product prompts: studio packshots, lifestyle scenes, flat lays and mockup-ready item photography (https://promptclay.com/product-prompts)

## Related searches

- [Illustration prompts](/search.md?q=illustration) (https://promptclay.com/search?q=illustration)
- [Infographic prompts](/search.md?q=infographic) (https://promptclay.com/search?q=infographic)
- [Minimal prompts](/search.md?q=minimal) (https://promptclay.com/search?q=minimal)
- [Product prompts](/search.md?q=product) (https://promptclay.com/search?q=product)

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