Planning Complex Models
Breaking down complex designs into simple parts
Complex models are just many simple parts.
The Decomposition Process
- Identify the overall form
- What is the basic shape?
- Cube? Cylinder? Combination?
- List the components
- Break into logical parts
- Each part = primitives + booleans
- Define relationships
- How do parts connect?
- What are the constraints?
- Plan the order
- Build from base up
- Dependencies first
Example: A Chair
Components
- Seat (flat box)
- Backrest (flat box, angled)
- Four legs (cylinders/boxes)
- Optional: Arm rests
Relationships
- Legs at corners of seat
- Backrest at back edge of seat
- Arm rests connect legs to backrest
Build Order
- Seat (primary reference)
- Legs (positioned relative to seat)
- Backrest (attached to seat back)
- Arms (connect everything)
Documentation
Keep notes while designing:
markdown
# 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:
- Rough block-out - Basic shapes, test proportions
- Refine - Adjust dimensions
- Detail - Add smaller features
- Polish - Materials, final touches
Don't perfect things too early!