an approach to 3D digital design

testing
a. interface
The users liked the feeling of freely moving the two LED "pens" through space, and almost immediately grasped the interface concept. They also enjoyed the fact that the pens were so light and wireless. But the adaptation to the technological limitations was disappointing to them. Mainly the field of view of the cameras and the speed of the system .

b. user interface feedback
The survey conducted after the first testing session showed that the users found the system to have an unnatural feedback, too fast and a limited space to work in. These problems led the users to concentrate more on maintaining the lights visible by the cameras than on the sketch itself.
The users also said the system was fun and they like the shapes generated. They liked especially the export feature because it allowed for more complete exploration of the generated shapes and further editing.
Different exploratory tools are also required to derive a better understanding of the objects that are being created.
a possible conclusion from the testers' behaviour and reactions is that a designer develops a personal relationship with a design tool, leading to an individual belief in her experience with the tool. However, a designer's "fluency" with a preferred design tool or method is usually not vocalized. With reference made to this approach, and its possible place in the design process, it was commented that when a designer becomes "fluent" in using a particular tool she is able to better consider all the possibilities available to her. So, training ends up as being essential.