The Laboratory of Ship & Marine Hydrodynamics has recently updated the old hand-driven milling machine that was used to create the scaled models.The model geometry is now designed in CAD-CAM programs and is created by a three-axis, servo-motor driven CNC machine. Maximum model dimensions are 5.0m x 0.60m x 0.90m. The acceptable tolerences are below 0.1mm.
CAD/CAM applications are used to both design a product and program manufacturing processes, specifically, CNC machining. CAM software uses the models and assemblies created in CAD software to generate tool paths that drive the machines and turns the designs into physical parts.
In our laboratory, for the design of the lineplan we use several softwares (Autocad, Tribon, Rhino etc). Especially Rhino can create, edit, analyze, document, render, animate, and translate NURBS* curves, surfaces, and solids, point clouds, and polygon meshes. There are no limits on complexity, degree, or size beyond those of your hardware.
Again, RhinoCam is used as our main CAM software.
Mach 3 Mill
Mach3 turns a typical computer into a CNC machine controller. It is very rich in features and provides a great value to those needing a CNC control package. Mach3 works on most Windows PC’s to control the motion of motors (stepper & servo) by processing G-Code. While comprising many advanced features, it is the most intuitive CNC control software available. Mach3 is customizable and has been used for many applications with numerous types of hardware.
Different materials can be used in the production stage, deppending on the needs of your prototype (weight, stabillityetc). GRP and CFRP can be used for extra demands. The models are painted with water resistance paints to reinsure a waterproof result.