- Academic (ACM UIST 2021)
- MIT News
The conductive cell walls of MetaSense objects act as capacitance sensors to detect user interaction. In the following figure, a Metasense joystick is shown in (a) original state and (b,c) deformed states during user interaction with capacitance changes of conductive shear cells detected accordingly.
Visualizing Capacitance Variation:
Repo used to drive the capacitive sensing board:
We printed multiple sizes of the "fundamental sensing cells" and characterized their capacitance VS compression:
The results allow visualizing that we reached the limits of our capacitive sensing board (1pF) with the 5mm cells:
The editor allows visualizing simulated deformation, to predict the best position of the capacitive sensing cells:
Designs & Fabrications
Here is a step by step example, creating a model in the MetaSense 3D editor:
(a,b): adding non-conductive, structural cells;
(c,d) converting structural cells to conductive cells using the edit tool.
=> Printing result:
Filaments used: NinjaFlex TPU + Electrifi Conductive Filament
3d printer used: FlashForge Creator Pro 2.
A musical controller !?
A 3d printed accelerometer!?
A joystick to play PacMan !?