XSHELL
PAPER SHELL MADE OF CELL UNIT
ELECTIVE COURSE, FALL '19, CORNELL UNIVERSITY
IN COLLABORATION WITH YU SUN, MENGYI YAN, AND JUNSIK OH
XSHELL
PAPER SHELL MADE OF CELL UNIT
ELECTIVE COURSE, FALL '19, CORNELL UNIVERSITY
IN COLLABORATION WITH YU SUN, MENGYI YAN, AND JUNSIK OH
This project explores the simplest way of constructing a doubly-curved shell structure - by setting the fabrication method based on planar manufacture, which can be achieved by CNC Routers or laser machines and using sheet materials like chipboard. The cellular unit was mapped and unrolled to planar folding and cutting lines, fabricated through tens of recycling chipboards within 2mm thickness. The whole fabricating process including cutting, folding, and assembling took only 5 days and 3 group members to complete the construction of this human-scale installation on the 3rd floor of Sibley Hall.
This project explores the simplest way of constructing a doubly-curved shell structure - by setting the fabrication method based on planar manufacture, which can be achieved by CNC Routers or laser machines and using sheet materials like chipboard. The cellular unit was mapped and unrolled to planar folding and cutting lines, fabricated through tens of recycling chipboards within 2mm thickness. The whole fabricating process including cutting, folding, and assembling took only 5 days and 3 group members to complete the construction of this human-scale installation on the 3rd floor of Sibley Hall.
ENTWINED
A ROBOTIC BENT AND WELDED CHAIR
STUDIO PROJECT, SPRING '18, TONGJI UNIVERSITY
This project starts with the research of the natural phenomena of bending and weaving. By studying the geometrical rules and natures of bending and weaving, I summarized a basic pattern to composite curvature elements in the design. Based on the material performance of the 5mm steel rod, I utilized a strategy to combine robotic bending and MIG welding to realize the materialization of my design. Through the fabrication process, the programming science of robotic was deeply studied by me to successfully bend the intended geometry that I designed.



Deformation simulations of bending a single rod

Simulation of welding bent rods


Step 1: Set Voxels based on intended volume. The range factor of the influenced volume is one of the independent variables

Step 2: Extract sampling point cloud from the network. The quantity of sampling points is one of the independent variables

Step 7: Convert polyline to actual bending curves

Step 1: Set Voxels based on intended volume. The range factor of the influenced volume is one of the independent variables
Based on the previous generation steps, there are three independent variables and each of them can affect the final shape and combination of curves independently. Below is a list of the 3-axis coordinate system that reflects the relationship between independent variables and countering results.

Based on the material performance of 5mm steel rod, I utilized a strategy to combine robotic bending and MIG welding to weave the rods together.




The process of welding can be artificial or semi-automatic. With the bent rods placed on a plinth, there is a corporation between designer and worker or welding machine that designer placed a rod to the intended position to link with another while the other used the welding gun to weld the intended connection point.





