Hearts 4-ever in Love

thingiverse

A unique heart-shaped necklace, fabricated from temperature-sensitive plastic, visually displays your loved one's capacity to warm your heart. The design features four hearts encased within a larger heart symbolizing eternal love. To ensure structural integrity, this accessory is printed flat with exterior support. Employing a 0.10 layer height and 10% infill, the shells are created using color-changing plastic that transitions from green to yellow when heated. The necklace features a loop crafted from copper wire, twisted and soldered for safety before being discreetly concealed within the piece. By pinching the loop into a triangular shape, the necklace can effortlessly follow the heart's contour.