pad was part of a product developed at Immersion Corporation
The game pad show abovr was hand sculpted out of Renshape, a
polyester-based plastic. This enabled the designer to insure the pad
would have an ergonomic shape that fit in the users' hands comfortably.
To create dimensional files the physical version needed to be digitized.
The first step to creating this game pad was to start PowerSHAPE, then
launch the CMM Curve interface. This interface allows users to digitize
in polylines or bezier curves. The Auto Plot feature can be used to
capture data at defined intervals of distance. An audio cue indicates
when a point has been input
Digitize profile curves
Next, profiles were digitized across the body of the game pad.
Information for other features, such as the buttons and the thumb
control, was also captured.
Surfaces were created from the profile curves to create the main body of
the game pad. The surfaces were then edited with the other feature data
that had been digitized in.
For visualization purposes the file was exported to a rendering program.
Shaders were created and applied to the surfaces so a final render could
The game pad model was output on an FDM machine, pictured to the right.
Once output, the game pad was assembled into a functioning prototype. A
total of five such prototypes are created