Embodied Axes Is a Tangible Interface for AR Models

Augmented reality has the potential to revolutionize how we interact with 3D CAD models, medical imaging data, and more. One won't just look at a representation of something on a 2D monitor, but could view it in three dimensions with an AR headset, even adjusting their head to peer at different orientations.

What if you want to see inside an object, creating a section view of it on the fly? While camera or controller-based options would certainly be possible, the “Embodied Axes” project proposes a setup that takes advantage of sliders along with a rotary encoder for an immersive visualization of a 3D space.

The device features a physical embodiment of X, Y, and Z axes, which emanate from a single point, forming a sort of bounding box for 3D objects in AR. On each of these axes is a pair of actuated linear potentiometers that can section an object, defining a maximum and minimum value. These sliders are controlled by DC motors, which can coordinate movements for a slice representation that travels through an object, and can be used for force feedback. Each axis also has a rotary button for additional parameter tuning or menu navigation.

At the heart of it all is an Arduino Mega with a custom shield that facilitates motor interface. The Arduno sends potentiometer readings to a PC for image modification and reads messages from the computer to provide the proper feedback. The system can even be integrated with cameras and other input methods for even greater control of AR models.