In this research, design consideration in experimental learning of robotics and mechatronics will be discussed with consideration items including parts production by introduced equipment, 3DCAD and 3D printer. In this paper, we describe the fabrication of a multi-legged mobile robot platform.
A 3D printing emerges as a common procedure in clinical radiology practice after installation of a module that converts the digital imaging and communications in medicine (DICOM) dataset into stereolithography (STL) data on medical workstations. However, they did not conventionally provide the appropriate filtering, sculpting, hollowing out, and Boolean (subtraction) operations on STL data. These functions are indispensable to handle the STL data to fabricate the smooth, low-cost, and sophisticated models. Here are some tips for handling the 3D data with three software packages through making a sample lumbar spine model. Because they are all free- and open-source software with the exception of Boolean operations, they could make it easy for anyone to fabricate their 3D model imaged by CT or MRI. We tested the loop subdivision surface algorithms for the smoothing, the sculpting function for removing a sharp prick, and the hollowing function to save the cost. Computer-aided design (CAD) is also used to fabricate the devices in medical research. We designed and developed a cap attached to a glass dosimeter to show the effectiveness of CAD in radiological research. Lastly, we discuss the important matters for 3D printing and examples of the clinical applications.
Sustainable design aims at the creation of physical objects, environment and services that complies to optimize social, economic, and ecological impact. QFD is able to assess the product design by the choice and definition of parameters that can be qualitatively discussed. The purpose of design is to meet a need in new ways and in innovative ways. In this context, the QFD aims at evaluating the quality of a design process. TRIZ is a design method that aim at defining and overcome some critical issue that can affect the development of a product, by means of potential innovative solutions. In this paper QDF and TRIZ analysis have been adopted in order to validate a design method for direct open moulds, by a new strategy: hybrid manufacturing can reduce the production time, the use of material, the energy and the waste consumption, employing subtractive and addictive techniques efficiently combined.
The purpose of our education approach is the giving the knowledge and the experience for the research activity to the freshman student who assigned the Lab. We think that “the interaction between the robot and the real world information which is observed by sensor” is important for the student education for student’s research in the Lab. Here, the interaction means how perform the robot based on the real world information which is observed by sensors. The development of the mobile robot which work in Robot competition (Tsukuba Challenge) requires “the interaction between the mobile robot and real world.” For this reason, we think that this activity (participating in the Tsukuba Challenge anf development of the mobile robot) is effective for the student education, and we educate the student by utilizing the development of the mobile robot for Tsukuba Challenge. Although our approach performed in short span, we achieve the good result. For example, the students achieves the research outcome by utilizing the learned skill, and submitted the paper to the academic conference. We verified that our education approach is effective for improvement the student education and motivation.
Five-axis machines are capable of complicated movement; however, their operation requires both experience and knowledge. For applying these machines to diversified small-quantity production, a sophisticated operating system that assists the operation in deriving the toolpath and avoiding errors is indispensable. From this perspective, the authors attempted to develop an automatic toolpath deriving method that detects processable polygons with a circular saw by analyzing a target geometry. A movement simulation method was also developed to ensure safety in operation. This paper reports the implementation of the system, and its validation through building a catenary dome that has miter joints.