Emmanuel Courtoux, Caroline Appert, and Olivier Chapuis. 2023. SurfAirs: Surface + Mid-air Input for Large Vertical Displays. In Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems (CHI ’23), ACM, 15 pages. https://doi.org/10.1145/3544548.3580877
A SurfAir is made of separate parts that are then assembled together. The main structure consists of 3D printed parts, springs, a suction cup, and markers.
STL files to print the two types of SurfAirs that are evaluated in Experiment 1 (SURFAIRS VS BARE HAND FOR MID-AIR INPUT): Handle and Torch.
The suction cup is a standard 20-mm diameter one, which generates a suction force of approximately 130 newtons.
The springs are made of steel (AISI 304L stainless steel). They are 25mm-long when free, 7mm-long when compressed, and feature 10 coils. Their inner diameter is 0.7mms. Their outer diameter is 0.9mms.
We used standard Vicon markers of 5mm-diameter, and 3mm-diameter screws and bolts.