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JosHsuan Chao

Selected work and research

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JosHsuan ChaoDESIGN + TECHNOLOGY
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2023 / Robotic assembly

Special Assemblies

A curved assembly of wooden sticks rises from a small base beside a robotic arm.Image unavailable. The source caption, original image link and project text remain available.

The assembled prototype beside the robotic arm, documented in the original Group6 record.

Group6 project: Chia-Hsuan Chao / Kevin Seav / Megi Sinani.Open full image (new tab)

V-Shape Modular Based Aggregation

I worked with Kevin Seav and Megi Sinani to explore reciprocal V-shaped stick modules and robotic assembly planning.

Follow the study
An early wooden-stick aggregation cantilevers from a small dome-shaped foundation.Image unavailable. The source caption and project text remain available.

Original source view.

Original reciprocal stick-assembly data study.

A physical study of the reciprocal stick aggregation and its foundation.

Group6 project: Chia-Hsuan Chao / Kevin Seav / Megi Sinani.

01 / Context

A reciprocal starting point.

I explored V-shaped wooden-stick modules with Kevin Seav and Megi Sinani, drawing on reciprocal structures. Each addition changes the relationships between neighbouring sticks.

Physical prototypes connected this bottom-up geometric study with the conditions of robotic assembly.

A curved assembly of wooden sticks rises from a small base beside a robotic arm.Image unavailable. The source caption and project text remain available.

Original source view.

Original reciprocal stick-assembly data study.

The assembled prototype beside the robotic arm, documented in the original Group6 record.

Group6 project: Chia-Hsuan Chao / Kevin Seav / Megi Sinani.

02 / System

Define a module, then its next neighbour.

I worked on the geometric aggregation study with Group6. The VStickModule diagram separates creating a V-shaped module from generating the next module using previous sticks. NE, NW, SE and SW choices organise directional growth.

The planning diagram then connects that geometry to robot trajectories: generate the assembly, plan through ROS/MoveIt, export JSON and inspect the simulation. Its failure-index branch supports replanning an identified trajectory rather than treating the first plan as final.

Module diagrams and sequential stick assemblies show four directional aggregation choices.

The original VStickModule and directional-aggregation diagrams, with their figure captions.

Group6 project: Chia-Hsuan Chao / Kevin Seav / Megi Sinani. Project diagram.Open full image (new tab)
Workflow diagrams connect module generation, ROS and MoveIt planning, JSON data, simulation and replanning.

The original software and JSON-based robotic planning workflow.

Group6 project: Chia-Hsuan Chao / Kevin Seav / Megi Sinani. Project diagram.Open full image (new tab)
The original robot-assembly simulation presents an arm and reciprocal stick modules with its authored framing.Image unavailable. The source caption and project text remain available.

Robot-assembly simulation of the Group6 reciprocal stick study.

Group6 project: Chia-Hsuan Chao / Kevin Seav / Megi Sinani.

03 / Making

Inspect the planned robot movements.

The trajectory plate distinguishes pick, place, exit and insert movements around the growing structure. We studied stick ordering and tool-frame direction, including a Z-axis correction intended to reduce gripper interference with the table.

The moving source is a robot-assembly simulation, not footage of a completed physical assembly. Read it alongside the trajectory diagram; the original assembly model and the physical photographs provide separate views of the study.

A robotic assembly diagram labels pick, approach, safe, place and exit frames around the stick prototype.

The recorded pick, place, exit and insert trajectory stages for V-stick aggregation.

Group6 project: Chia-Hsuan Chao / Kevin Seav / Megi Sinani. Project diagram.Open full image (new tab)
04 / Results

From modules to a prototype.

A front view shows the rising wooden-stick assembly under the robot gripper.Image unavailable. The source caption, original image link and project text remain available.

The physical prototype from a second viewpoint.

Group6 project: Chia-Hsuan Chao / Kevin Seav / Megi Sinani.Open full image (new tab)

The front and top photographs show the physical prototype and the repeated contacts between its sticks. They bring the geometric relationships back to the material assembly.

These prototypes document the team’s physical exploration alongside the planning work. The photographs and simulation do not by themselves establish collision-free execution or a verified assembly sequence for every model part.

A view from above shows crossing wooden sticks and their repeated contact points beside the robot.Image unavailable. The source caption, original image link and project text remain available.

A top view of the stick relationships in the assembled prototype.

Group6 project: Chia-Hsuan Chao / Kevin Seav / Megi Sinani.Open full image (new tab)