 The use of 3D printed components for the frame which positions and focuses the transducers and Arduinos as signal generators also significantly reduced the cost whilst increasing the accessibility, The reduction in cost was particularly important as a principal aim of this device was the democratisation of the technology.This new approach also led to significant developments using Phased Array Ultrasonic Transducers (often referred to as PATs) for levitation.Phased Array Ultrasonic Transducers are a collection of ultrasonic speakers which are controlled to create a single desired sound field.