Fig. 1. Rhinoceros 3D user interface
From our user studies, the participant can easily distinguish the correct orientation of the connection by herself without any instruction. However, the time for this process can be further shorten by eliminating all the other possible incorrect ways to connect two blocks. The shape of the block can be further modify such that the orientation can be more distinguishable.
A new parallelogram shape design has been adopted. The duration parameter is now controlled horizontally. The three connection dots were replaced by three concentric squares, such to increase the connection surface and to achieve a more stable signal transmission.
Fig. 4. New appearance design
Fig. 5. 3D models of syllable blocks and different function blocks
4.1.3 Laser Cut Ready
The 3D models were then unrolled and transferred into a laser cut ready format. It's now ready for laser-cutting and assembling.
Fig. 6. Laser cut ready file for all function blocks