Text to 3D Guide

Learn how to craft effective prompts to create precise 3D models using Forge's AI capabilities.

Prompt Structure Best Practices

Key Components of an Effective Prompt

1

Precise Dimensions

Always specify exact measurements in millimeters (mm) or centimeters (cm). For example:

"Create a rectangular box 120mm long, 80mm wide, and 40mm tall with 3mm wall thickness"
2

Detailed Features

Describe specific features, their locations, and their purposes. For example:

"Add four mounting holes (5mm diameter) at each corner, 10mm from the edges. Include reinforcement ribs (2mm thick) running diagonally between the holes"
3

Functional Requirements

Explain how the model will be used to ensure proper design considerations:

"This enclosure needs to house a circuit board (100x60mm) and should include ventilation slots on the sides. The top should be removable with snap-fit connections"

Interactive Workflow

Forge workflow example
Edit your prompt at any time using the edit button
"Revert and Continue" returns to previous code before applying new changes
"Continue" applies changes to current code
"Cancel" exits edit mode without changes

Advanced Prompting Tips

Parametric Design

Request parametric features for easy customization:

"Create a customizable gear with parameters for tooth count, module size, and thickness"

Complex Assemblies

Break down complex designs into modules:

"Design a modular shelf bracket system with interlocking components for adjustable heights"

Interface Overview

Workspace Layout

Forge interface overview
  • • Current File Tab: Shows the 3D preview of your model
  • • Code Tab: Displays the OpenSCAD code generated by AI
  • • Edit your design iteratively using the prompt interface
  • • View real-time updates as you modify the design

Common Prompt Patterns

Mechanical Parts

"Design a mounting bracket for a 40mm computer fan with the following specifications: - Base plate: 50x50mm, 3mm thick - Mounting holes: 4x M3 holes at 32mm spacing - Include 5mm tall reinforcement ribs - Add 2mm fillets on all external edges"

Enclosures

"Create an electronics enclosure with these requirements: - Internal dimensions: 120x80x40mm - Wall thickness: 2.5mm - Snap-fit lid with 1mm tolerance - Ventilation slots: 20x2mm, spaced 5mm apart - Cable entry hole: 10mm diameter with strain relief"