This is a model of three bubbles intersecting in a mathematically-correct way, according to Plateau's Laws. The coordinates come from the Wolfram Demonstration at http://demonstrations.wolfram.com/ThreeCoalescingSoapBubbles/ (see the last picture). For many more details see MakerHome, Day 350:
Hacktastic blog: mathgrrl.com/hacktastic
Shapeways geekhaus store: shapeways.com/shops/mathgrrl
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