Presented in this paper is a new approach to 5-axis CNC tool path generation for sculptured surface machining with a flat-end cutter. Rational Bézier and B-spline motions are used to plan cutter motions so that an exact representation of the effective cutting shape can be obtained. The exact representation leads to an accurate computation of the scallop curve generated by two adjacent tool path...

This paper proposes a novel method for generation of optimized tool path in 5-axis flank milling of ruled surfaces based on Particle Swarm Optimization (PSO). The 3D geometric problem, tool path generation, is transformed into a mathematical programming task with the machined surface error as the objective function in the optimization. This approach overcomes the limitation of greedy planning m...

In this paper, we present a method to produce analog records with vector graphics software and two different types of cutting machines: laser cutter, and paper cutter. The method enables us to engrave a variety of wave forms on a surface of diverse materials such as paper, wood, acrylic, and leather without or with prior acoustic information. The results could be played as analog records with s...

Purpose. To describe our surgical technique in the management of pseudophakic malignant glaucoma refractory to conventional treatment. Methods. Two pseudophakic eyes with malignant glaucoma underwent peripheral iridectomy, lens capsulectomy, hyaloidectomy, and anterior vitrectomy through a clear corneal incision by using a vitreous cutter. Results. Prompt resolution of malignant glaucoma was ac...