Final Changes & Printing: Arthur assembled the printed bottle to figure out what final modifications are required. He then relayed the changes to Jin Feng to edit the CAD models. A hole was added to install an OLED display, while the diameter of the motor hole was increased by 2mm to better fit the brushless, coreless motor. Central supports were removed for electronic base and outer bottle base, leaving some overhangs. This helps to reduce bottle weight as the inner bottle and electronics base are stable without central supports. We then printed the updated components for the final product model.