The initial concept that I came up with for a modular unit was derived from an idea I came up with at the beginning of the year. The concept in itself was focused on the visual idea of
bubbles joining together. However, instead of having the material stick together with adhesive surfaces, the use of magnets would suffice instead to accommodate
connection points. Furthermore, by doing so, there was an opportunity to attach magnetic
LED lights to the resulting structures. The 3-D modeling of the spheres was a simple process of creating spherical volumes and subtracting cylindrical shapes that were dimensioned the same as the magnets that were to be used. After importing the file into the 3-D printer and printing three sizes (
small,
medium,
large) of units, I had my positives completed. Making a
mold of the positives was difficult, but by having one person hold the
dowels that submerge the positives under the rubber liquid while another person
secures the dowels in place with hot glue, the molds were easily completed. By taking the completed molds (
small,
medium,
large) and cutting them horizontally with an X-Acto (and removing the positives), I was able to line up the molds accurately enough without having to use any clamps or weights. Furthermore, by using aluminum "straws", I was able to pour in the plastics with ease. Every 10-15 minutes, I was able to take out a plastic cast. There were ugly pieces casted now and again, but ultimately, the
pieces came out with accurate voids and dimensions. Once the pieces hardened and dried, by using LiquidNails Perfect Glue 2, I was able to place the magnets securely into the voids. The end result was
success in that the magnets were strong enough to
suspend large spheres with one connection point. The addition of
LEDs added to the dramatic effect of the
sculptures.
For the 3-D model of the spheres, click the following:
SMALL,
MEDIUM,
LARGE.