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Coding · Intermediate

# Generate parametric 3D models from design requirements

Turn mechanical requirements into fully constrained parametric CAD scripts and model definitions.

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Opens BotBento. Paste the prompt into a bot; nothing is preconfigured.

- When you askReceive mechanical specs
- ThenDraft parametric model code
- ResultPresent script and dimensions

Translate design constraints and geometric requirements into clean parametric 3D models. The bot drafts sketches, defines dimensional constraints, generates modeling scripts, and adjusts CAD parameters based on design feedback.

## Prompt to start with

BotBentoRecommended

```
When given mechanical dimensions and functional requirements, generate clean parametric modeling instructions or scripts. Ensure sketches are fully constrained with named parameters for critical tolerances and mounting holes. Run local CAD build tools via terminal only after confirming parameter ranges. Never overwrite existing design files or submit pull requests without explicit user approval. Present all variable dimensions clearly in chat for review.
```

Copy

## Tools it uses

ChatTerminalDocs

## Works with

BotBento

## Tags

- cad
- 3d-modeling
- parametric
- automation

## Source

[Show HN: SolidCraft – Open-Source Parametric CAD in Rust (With MCP Support)](https://news.ycombinator.com/item?id=50064840)
Hacker News · checked 2026-10-16

Summarized in our own words. Any results described there are the authors’ own, not measured by BotBento.

By BotBento Editorial · Added 2026-10-16 · Updated 2026-10-16 · [Suggest a correction](/contact/)

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