Real-time shaded NC milling display
SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
Extended free-form deformation: a sculpturing tool for 3D geometric modeling
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
Sculpting: an interactive volumetric modeling technique
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
NC milling error assessment and tool path correction
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
I3D '95 Proceedings of the 1995 symposium on Interactive 3D graphics
ERIT: a collection of efficient and reliable intersection tests
Journal of Graphics Tools
Intermediate representation for stiff virtual objects
VRAIS '95 Proceedings of the Virtual Reality Annual International Symposium (VRAIS'95)
A constraint-based god-object method for haptic display
IROS '95 Proceedings of the International Conference on Intelligent Robots and Systems-Volume 3 - Volume 3
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This paper presents an analytical methodology for virtual sculpting of complex surfaces with a developed 5- DOF (Degree of Freedom) force-torque haptic interface. In the proposed methodology, 5-axis tool motion and analytical tool swept volume are formulated for updating the virtual stock material, which is represented with dexel volume model. Based on the tool motion analysis, a dexel-based collision detection method and a force-torque feedback algorithm are proposed for virtual sculpting. Different from the traditional ways of calculating haptic forces based on depth of penetration or impulses, the proposed method determines the haptic force by finding the material removal rate of dexels. A lab-built 5-DOF haptic interface system is developed for the proposed haptic sculpting system. From the haptic sculpting system, both corresponding tool motion of the creative process and the sculpted model can be output. The tool motion can be recorded and output as NC (numerically-controlled) commands. The output STL model of the haptic sculpting system can be processed for machining planning.