Credits: Nitesh Kadyan, Anirudh Sharma, Fabio Besti, Pattie Maes and Mark Billinghurst
Chalkaat is a stroke based direct manipulation interface for 2D CNCing. A key motivation is to give users constant awareness of what they will be cutting to avoid the need for tedious test cuts. The following concerns raise important questions about the interface, affordance and efficiency of the present laser cutters.
“I haven‘t quite figured out where the laser cutter is going to cut on the work piece.”
“It‘d be nice if I could use my hand-tools the way I used to carpenter manually.”
“I don‘t really know if I can re-use that already semi-cut piece of acrylic, I’d rather take a new one.”
Indirect manipulation on regular laser cutters. Present day laser cutting tools allow users to do subrative manipulation of material, hence democratizing manufacturing. However, we felt that the methods to manipulate such machines aren't yet evolved enough. Hence we present, a pen stroke based UI for interacting with laser cutters, where the users can express themselves more directly by working directly ' on the workpiece'. Different coloured markers allow different commands to be executed. We built a laser cutter from ground up, with computer vision and mechanics to optimize for the interface.
Bi-Modal Interaction Language