Planning Complex Models

Complex models are just many simple parts.

The Decomposition Process

1. 1Identify the overall form

- What is the basic shape?
- Cube? Cylinder? Combination?

1. 2List the components

- Break into logical parts
- Each part = primitives + booleans

1. 3Define relationships

- How do parts connect?
- What are the constraints?

1. 4Plan the order

- Build from base up
- Dependencies first

Example: A Chair

Components

1. 1Seat (flat box)
2. 2Backrest (flat box, angled)
3. 3Four legs (cylinders/boxes)
4. 4Optional: Arm rests

Relationships

• Legs at corners of seat
• Backrest at back edge of seat
• Arm rests connect legs to backrest

Build Order

1. 1Seat (primary reference)
2. 2Legs (positioned relative to seat)
3. 3Backrest (attached to seat back)
4. 4Arms (connect everything)

Documentation

Keep notes while designing:

# Chair Design

## Dimensions
- Seat: 45 × 5 × 40 cm
- Backrest: 45 × 40 × 3 cm
- Legs: 4 × 42 × 4 cm (×4)

## Positions
- Legs: 2cm from seat edges
- Backrest: 80° angle

## Colors
- Wood: #8B4513
- Cushion: #404040

Iteration

Professional workflow:

1. 1Rough block-out - Basic shapes, test proportions


2. 2Refine - Adjust dimensions


3. 3Detail - Add smaller features


4. 4Polish - Materials, final touches

Don't perfect things too early!