Rapid Prototyping

Rapid prototyping projects including Arduino, CAD, woodworking, and metalworking

Moon Bunnies CAD rendering

Rapid Prototyping

Rhino Grasshopper
A set of practice renderings made with Rhino 3D Grasshopper plugin.
Rhino Grasshopper renderingRhino Grasshopper renderingRhino Grasshopper renderingRhino Grasshopper renderingRhino Grasshopper renderingRhino Grasshopper rendering
Gear Mechenism
Gear Mechenism renderingGear Mechenism rendering

'Intended as a substitute for the crank. Reciprocating rectilinear motion of the double rack gives a continuous rotary motion to the center gear. The teeth on the rack act upon those of the two semi-circular toothed sectors, and the spur-gears attached to the sectors operate upon the center gear. The two stops on the rack shown by dotted lines are caught by the curved piece on the center gear, and lead the toothed sectors alternately into gear with the double rack.'

- no.123 from 507 Mechanical Movements -

Moon Bunnies
Moon Bunnies CAD renderingMoon Bunnies CAD renderingMoon Bunnies CAD renderingMoon Bunnies CAD renderingMoon Bunnies CAD renderingMoon Bunnies CAD rendering
This is a model of an automaton that uses cams and gears to bring life to the two moon bunnies making rice cakes using Jeolgu, the gray pot in the middle. I was inspired by a Korean traditional fable about rabbits living in the moon making rice cakes. The automaton mimics the motion of hitting a rice cake dough in a Jeolgu (a type of traditional Korean mortar and pestle set).
Ardunio-controlled 8x8 LED
8x8 LED test : smile8x8 LED test : ok8x8 LED + buttons test : arrows

Snake Game

8x8 LED snake game example playEnd of game screen, 8x8 LED snake game
I wrote a code for wrap-around snake game in Ardunio. The four buttons are controlled by one analog pin. Which button is pressed is detected by the amount of current flowing to the analog pin, as the buttons are sequentially connected with resistors. The end state shows 'GG' and an arrow pointing at the reset button for another round of game. This version of the game doesn't have a concrete win state, but it can be easily added by modifying few lines of code.
Mini Gallery (2022)
Media List: Plywood, Clear PVC Sheet, Plastic Capsules, found objects
Mini Gallery sculpture made with woodMini Gallery sculpture made with woodMini Gallery sculpture made with wood
Mini Gallery sculpture made with wood
Gallery space doesn’t have to be confined to what we so call a ‘white cube’ space. Art can be displayed and curated through various means, including the toy capsule vending machine. Inspired by the childhood capsule vending machines I often used to collect a series of toys, I built an interactive piece that invites the audience to touch and pull the slider to have the work present each capsule that encloses a different piece in a collection. From a holistic perspective of the collection in a bundle of capsules inside the machine to an individual inspection upon drawing each capsule away from its exhibition space, Collection Capsule Vendor allows the audience to approach and explore the works from new perspectives.

For the first presentation of this mini gallery space (first photo), I selected a theme of ‘Mark-making’, where each capsule in the machine contains a different medium that can be used to leave a mark for various purposes.

Patterns (2022)
Media List: Rope, Aluminum Wires, Plaster Cloth, Acrylic Paint
'Patterns' sculpture made with plaster cloth, aluminum wire, rope, and acrylic paint'Patterns' sculpture made with plaster cloth, aluminum wire, rope, and acrylic paint
'Patterns' sculpture made with plaster cloth, aluminum wire, rope, and acrylic paint'Patterns' sculpture made with plaster cloth, aluminum wire, rope, and acrylic paint
What makes a wearable a wearable? Upon seeking for a common ground across diverse products in the fashion industry, I noticed that perhaps what makes a wearable a wearable is that it’s a medium weaved in different patterns with unique selection of decorations. For example, a sweater, which is one of the common wearables, can have different designs based on the colors and patterns the thread is weaved with.
'Patterns' sculpture beads work in progress (wireframe)
Occasionally, there also are beads and bows that interwoven into the piece, giving another character to the clothing. Inspired by this definition of wearable, I wanted to see how far we can expand on this definition to produce a wearable. I then remembered how I used to play Cat’s Cradle with a simple loop made from a long thread, as well as the diverse patterns it created as different people took turns to move to the next pattern. Patterns is an enlarged version of the starting pattern of Cat’s Cradle game in action, with the beads placed throughout as a unique flavor of this version of Cat’s Cradle.
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