SUNGJUN YU

    WORK


    GRAVITY STAND FOR OP-1

    Gravity Stand for OP-1 is a third-party accessory designed for Teenage Engineering’s OP-1 synthesizer. Using its built-in motion sensor, the stand turns tilting and physical movement into a tactile and intuitive way of controlling sound.

    Beyond its function, the project explores how a physical object can deepen the relationship between a user and a digital instrument. By integrating the OP-1 with a solid, sculptural stand, the synthesizer gains a stronger material presence and can be experienced not only as an electronic device, but as a crafted musical object.

    YEAR
    2019

    KEYWORDS
    Mechanical Design
    Sound Interaction
    Tactile Control








    BACKGROUND

    “If, after five years, you still cannot play it, stick it on a stand in the corner. It’ll look good.”

    This joke by Noel Gallagher stayed with me because it says something simple but important about musical instruments. Even when they are not being played, instruments can become objects people want to keep, display, and care for over time. It made me think about whether an electronic instrument could also gain this kind of presence and attachment, rather than being treated only as a piece of technology that becomes outdated.

    The project also began with a practical issue raised through conversations with musicians who used the OP-1. Its built-in G-force sensor offers an expressive way to control sound, but using it during performance often requires players to lift or move the instrument itself, which can interrupt the flow of playing. Gravity Stand for OP-1 was developed as a way to make this hidden function easier, more stable, and more intuitive to use, while also giving the instrument a stronger physical presence.
    Take it away (2010, July 22). Noel Gallagher talks to Take it away [Video]. You Tube.
    https://www.youtube.com/watch?v=3PeMNyefsSE







    MECHANICAL DESIGN FOR INTUITIVE SOUND CONTROL

     A core function of Gravity Stand for OP-1 is its mechanical tilting mechanism, which makes the OP-1’s built-in G-force sensor easier to use during performance. Instead of lifting and moving the instrument itself, users can adjust the stand’s angle to control parameters such as pitch, volume, effects, and modulation.

    The mechanism was designed to respond smoothly to physical movement while returning to its original position when not in use. By translating tilting motion into sound control, the stand creates a more tactile and intuitive way of interacting with the OP-1, adding a physical layer to the relationship between the user and the digital instrument.










    USER RESPONSE AND MATERIAL PRESENCE

    Gravity Stand for OP-1 explores how a crafted stand can change the way users relate to an electronic instrument. Electronic instruments are often treated like other consumer electronics, losing value as they become outdated, while traditional instruments can develop a stronger sense of attachment through years of use, care, and familiarity. The project responds to this contrast by giving the OP-1 a more solid and lasting presence, encouraging users to experience it as something to keep, use, and care for over time.

    During user testing, participants often responded to the stand not only as a functional accessory, but also as an object with its own material presence. When users handled the tilting mechanism and felt the weight of the stand, the interaction became more direct and personal than simply viewing the object. These observations led me to consider how tactile interaction, material presence, and physical weight can contribute to a stronger sense of attachment to a digital instrument.








    PROTOTYPING

    The development of Gravity Stand for OP-1 was driven by repeated mechanical prototyping. More than 60 prototypes were built to test the tilting structure, return mechanism, stability, spring tension, actuation force, and the overall feel of the movement. Each iteration helped refine how the stand responded when pushed, tilted, released, and used repeatedly.

    The process treated the mechanism not only as a functional structure, but also as a tactile interface. I tested different structures, angles, gear arrangements, and spring configurations to adjust the balance between resistance, control, return force, and tactile response. The final mechanism was developed to make sound control feel stable, expressive, and intuitive while giving the OP-1 a stronger physical presence.