HANG ZHAO

Hero

Units, Joints, Forms

A multi-unit system exploring geometry, joint logic, and morphological behaviors.

2025 / 11
Illustrator Rhino Grasshopper CNC Milling Zünd Cutter Laser Cutter 3D Printing
Explored as a design investigation into how geometry and connection logic generate form.
Overview

This project investigates how a single modular unit can multiply into a flexible design system.

Through joint optimization, pattern exploration, and iterative assembly, the unit adapts into various configurations—planar, folded, and volumetric forms.

The work combines digital fabrication and hands-on prototyping to explore how geometry, material behavior, and connection logic drive form-finding.

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Design Goals
  • Create a repeatable yet expressive modular unit.
  • Develop a joint system balancing bespoke geometry with repeatable fabrication.
  • Explore how modular aggregation produces morphological effects—curvature, density, volume.
  • Test feasibility through rapid prototyping and material iteration.
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Process

1. Geometry Exploration

Early sketches and digital drawings investigate circular morphologies and interlocking branches.

Different unit topologies were tested to understand how they aggregate and deform.

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2. Geometry Exploration

Early sketches and digital drawings explore circular morphologies and branching connections.

Different unit topologies were tested to understand how they aggregate and deform.

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3. Digital Pattern Development

Units were drawn in Illustrator and refined through multiple iterations.

Joint proportions, slot tolerances, and material constraints were optimized through parametric adjustments.

5. Assembly & Form-Finding

Through stacking, layering, and clustering, diverse morphologies emerged:

  • planar tessellations
  • soft curvature
  • shell-like enclosures
  • volumetric forms wrapping around light sources

The same geometry adapts dramatically depending on how units interact.

6. Morphological Effects / Final Outcomes

  • Unit 1–3 → simple planar clusters
  • Unit 4–5 → emerging curvature
  • Unit 9+ → dense, volumetric shell formations

Under lighting, the surfaces generate layered shadows and nested geometries, enhancing spatial depth and visual density.

4. Material Experiments & Joint Prototyping

Using Zünd cutting, laser cutting, and occasional 3D printing, a series of physical prototypes evaluated:

  • flexibility & bending behavior
  • friction-fit strength
  • durability across materials
  • assembly feasibility and tolerance control

These tests refined the joint logic and verified structural behavior.

Morphological Effects

The system demonstrates a wide range of expressions:

  • Unit 1–3: simple planar clusters
  • Unit 4–5: emerging curvature
  • Unit 9+: dense structures and volumetric shells

These transformations highlight the adaptability of the modular language.

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Play of Forms

Under lighting, the unit produces layered shadows and nested geometries.

The modular aggregation interacts with illumination, creating dynamic spatial effects.

Workflow Diagram
  • Pattern illustration of modular units
  • Material experiments & cutting
  • Joint modeling (3D printing if applicable)
  • Parts assembly
  • Feasibility & structural testing