Constraint for Development of Robot Prototyping

Recently, the general prototyping method for robot platform development is a pre-design kit consisting components format module. The present robot development trend uses the physical prototype form of the virtual prototype after computer simulations. Developers can quickly build dynamic locomotion patterns using a digital mock up. Thus robot prototypes are aimed at the verified concept of materialization, moving from virtual space to a real world. Developers are good at using ready made robots or pre-designed kit to save time and costs, and these saving pay for the development of new hardware components. But pre-designed kits limit the creativity of developers, so it is disadvantageous for development form. When using a commercial tool it is hard to connect mechanisms, form design and creative structural design.

The environment of robot prototyping consists of several subsystems, such as simulation, design, control, hardware selection, monitoring, part ordering, CAD/CAM modeling, physical assembly and testing. Robot prototyping has to satisfy engineering needs. The design factor should be linked closely with the prototype. The general process design includes the styling process and the engineering design process has a spiral structure of evaluation consisting of design, build and test. The result of the engineering evaluation process was accumulated to next process. But the styling result is renewed at every stage by changing the requirements of engineering functional.

The concept of a styling framework is a prototyping system connecting prototyping at each stage of the robot design to produce the end model. Each prototyping link in the system evolution system is combined with the manufacturing method and the material information.

Some improvements are needed for more effective robot design despite the advantages of cardboard prototyping. Cardboard prototyping has weaknesses, starting with the test engineering in robot development. This prototyping has no accuracy due to the model is built by hand. And other weakness is stiffness because of material. Accuracy can be increased b y using kinematic cardboard prototype into the late stages of robot design.

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