This is a useful device for transporting liquids, and other items, over short distances. Please note, since this device is gravity assisted, it is only guaranteed to contain it's contents if held with the open end in opposition to the mass generating the strongest gravitational pull at the device. The contents is assumed to have a mass greater than the matter above the open end of the device when it is in proper alignment. It is possible to contain matter that does not meet the above requirement by turning a properly align device 180 degrees around either the X or Y axis.This script calculates the radius and height based on the required volume, the number of sides, and the golden ratio. If printed on a properly calibrated printer, the device will hold the exact volume requested.