“Every Parade of Ours is a Pride Parade”: Exploring LGBTI+ digital activism in Turkey

This article analyses the #HerYürüyüşümüzOnurYürüyüşü (Every Parade of Ours is a Pride Parade) hashtag campaign for 2019 Pride month in Turkey, expressing the collective frustration of the LGBTI+ community against long-lasting bans for LGBTI+ events and public assembly. Drawing on a digital ethnography from Twitter, the article explores networked resistances within the complexity of online and offline entanglements of activism during Istanbul Pride 2019. The multimodal discourse analysis conducted in this article focuses on the interactions of digital affordances and embodied street actions in rearticulating queer political places. The study emphasizes the important role of hashtag activism in the (re)making of place as a trans-located experience, as well as affording emergent LGBTI+ resistances.

Development of the method of visualization for production facilities with application of augmented reality technologies

This article reviews the experience of application of VR-AR technologies (virtual and augmented reality technologies) for visual demonstration of production facilities in the process of engineering and operation. The three-dimensional modeling in CAD systems is commonly used as a means for development of construction documentation, visualization of work at different stages of engineering, and preparation of objects for engineering analysis. The authors believe that the use of AR-solutions not in parallel, but along with modern CAD systems for solution of engineering and design problems would allow avoiding design flaws and simplify the process of demonstration of projects. Based on the blueprints and three-dimensional models of the parts and assembly of two-stage reduction gear used  for lifting a thermal furnace in metallurgical production, within the framework of development of the Unity multimedia application is developed the AR application for visual demonstration of the device. As the guide mark for visualization is selected the assembly drawing of the reduction gear in digital graphical format edited in the Vuforia portal. The guide mark database is imported into the Unity environment, the logic of implementation of the technique for demonstrating the assembly of the device and separate parts is written in script program. The application is installed on a smartphone and tested; pointing the camera at the printed assembly drawing allows seeing the 3D model of the reduction gear from different angles, hide any details and scrutinize the device. The AR-applications developed according to the proposed method can be used in the process of training operational personnel, which would improve the performance and quality of work during installation and maintenance of industrial facilities, as well as for displaying the projects during exhibitions and presentations of new products.

Research on Fixture Design of NC Machine Tool Based on UG 3D Modeling

Research on the design of CNC machine tool fixture based on UG 3D modeling; Firstly, the processing procedure of the back cover parts is analyzed, and the overall scheme of the fixture is determined. Then the three dimensional model of each part of the jig is established including the standard part library of jig and the design of non-standard parts of jig. Then carry on the fixture 3D assembly drawing design; Finally, it is converted into fixture technical document including assembly drawing and specific part drawing. The design process is simple and clear, which improves the quality and efficiency of fixture design.

The Design and Analysis of a Child Seat for a Motorcycle

<p>This paper discusses the methodology of design and analysis of a child seat for motorcycles. After realizing the dangers of an unrestrained child in motorcycles, this seat offers a solution to the problem. The seat features sliding beams that allow the user to access the under-seat compartment of the motorcycle and the fuel tank, without requiring any disassembly of the child seat. The dimensions are measured and considered when designing in a graphical application. Once the assembly drawing is completed, the seat is analyzed to identify critical parts of the seat to ensure failure does not occur. It is concluded that our design can withstand static loading but is predicted to fail due to fatigue after 81× 10³ cycles under the assumption of accelerating from 0 to 50 km/h in 5 seconds. However, since that is not deemed to be fully optimized due to having a finite life, the material and dimensions are changed so that an infinite life can be predicted.</p>

Proposal of a standard for 2D representation of bio-inspired lightweight lattice structures in drawings

The interest of industrial companies for the Additive Manufacturing (AM) technology is growing year after year due to its capability of producing components with complex shapes that fit industrial engineering necessities better than traditionally manufactured parts. However, conventional Computer-Aided Design (CAD) software are often limited for the design and representation of complex geometries, especially when dealing with lattice structures: these are bio-inspired structures composed of repeated small elements, called struts, which are combined to shape a unit cell that is repeated across a domain. This design method generates a lightweight but stiff component. The scope of this work is to analyse the problem of the lattice structures representation in 2 D technical drawings and propose some contributions to support the development of Standards for their 2 D representation. This work is focused on the proposal of rules useful to represent such hierarchic structures. Python language and the open-source software FreeCad™ are used as a software platform to evaluate the suitability and usability of the proposed representation standard. This is based on simplified symbols to describe complex lattice structures instead of representing all the elements which constitute the lattice. The standard is thought to be used in technical 2 D drawings where assemblies are represented and lattice components are used (e.g. parts assembly, maintenance, parts catalogues). A case study is included to describe how the proposed standard could be integrated into a 2 D assembly drawing, following technical product documentation production typical workflow.

FEM Simulation of Multi-Stage Forging for Dray Fasteners

This study uses the dies of the dray fasteners processing graphics provided by the fastener’s industry to establish 3D dies and components solid models based on the embedded drawing function tools provided by the component model (Standard.ipt) of Autodesk Inventor CAD software. After finishing the dies and components drawing, the integrated assembly drawing of dies can be obtained through the assembly model (Standard.iam) firstly. Three stages forming processes can be conducted and carried out the FEM simulation to check the forming acceptance. The effective stress, the effective strain, the velocity field, and the forging force can be obtained by the FEM simulation. Moreover, the realistic experiment can be performed to verify the acceptance of FEM simulation. The dimensions of final product can be measured to get the errors between FEM and experiment. It is noted that the errors show a good agreement with the experiment.

Meeting the challenges first year engineering graphic design pre-service teachers encounter when they read and interpret assembly drawing

In this qualitative study, we explored the challenges first year engineering graphics and design (EGD) pre-service teachers (PSTs) encounter when they read and interpret assembly drawings (ADs). Vygotsky's zone of proximal development framed this study. Purposive sampling was used to generate data from twenty-one first year EGD PSTs using a think-aloud task and individual semi-structured interviews. We subjected the data to content analysis. The findings reveal that first year EGD PSTs, when they attempt to read and interpret ADs, encounter five challenges that have implications for the teaching of EGD with regard to scaffolding the development of spatial visual ability in first year EGD PSTs.