Investigating the Links between the Process Parameters and Their Influence on the Aesthetic Evaluation of Selective Laser Melted Parts

This study is a precursor to gaining a deeper understanding of how each parameter of the Additive Manufacturing (AM) process influences the aesthetic properties of 3D printed products. Little research has been conducted on this specific aspect of AM. Using insights from the work presented in this paper, we intend to develop design support tools to give the designer more control over the printed products in terms of aesthetics. In this initial work, we fabricated samples using Selective Laser Melting (SLM) technology, and investigated the parameters geometry, building strategy, and post-processing. We asked participants to evaluate the visual and physical interaction with the manufactured samples. Results show that, in addition to geometry and post-processing, the aesthetic evaluation can also be strongly influenced by the SLM process’ building strategy. This understanding will enable us to develop tools to give designers more control over the part’s aesthetic appearance. In addition, we present a systematic procedure and setup to evaluate the aesthetic appearance of products manufactured using AM

Projection and registration device

A projection and recording device, provided with a processing and control unit, a memory for recording images and other data, an input/output interface, a controllable camera, a touch screen for the input and display of data and images, a position determining system for determining the position of at least one object in relation to the projection and recording device, with images recorded by the camera being storable in the memory and displayable on the touch screen, and a projector for projecting an image stored in the memory onto the at least one object, whereby the cooperation between the position determining system and the projector enables the projector to project images onto the object.Design EngineeringAerospace Engineerin

Augmented prototyping: Augemented reality to support the design process

Design EngineeringIndustrial Design Engineerin

Projectie- en registratie-inrichting

The invention relates to a projection and recording device, provided with a processing and control unit, a memory for recording images and other data, an input/output interface, a controllable camera, a touch screen for the input and display of data and images, a position determining system for determining the position of at least one object in relation to the projection and recording device, with images recorded by the camera being storable in the memory and displayable on the touch screen, and a projector for projecting an image stored in the memory onto the at least one object, whereby the cooperation between the position determining system and the projector enables the projector to project images onto the object.Industrial Design Engineerin

Pixels want to be freed: Introducing augmented reality enabling hardware technologies

Design EngineeringIndustrial Design Engineerin

Beter beslissen door augmented reality

Augmented Reality: we verrijken onze werkelijkheid met extra bits en bytes. Waarom? Omdat de wereld zoals wij die ervaren niet meer rijk genoeg is. Daarom projecteren we er extra laagjes informatie overheen. 'AR levert nieuwe inzichten op, en dat kan leiden tot betere beslissingen,' stelt Jouke Verlinden, universitair docent aan de TU Delft.Design EngineeringIndustrial Design Engineerin

Developing an Interactive Augmented Prototyping Methodology to Support Design Reviews

Physical prototypes and scale models play an important role in engineering design processes, especially in the field of industrial design. Such models are typically used to explore and discuss design concepts in various stages, from initial idea generation to manufacturing. Over the last decade, augmented reality technologies have been developed to assist prototyping in design.?we can employ head-mounted displays, projectors, or handheld video- mixing solutions, as well as 3d printing to “enrich” physical models with features, materials, and behaviour. The outcome of this project is a design support methodology, entitled interactive augmented prototyping methodology (iap-m), which utilizes augmented reality as an instrument to support design reviews. The instrument, a projection and recording unit, was patented and licensed to a techno starter for further valorisation. Although the instrumentation is central in this study, it requires procedures and methods to be applied in design processes. The insights that lead to iap-m originated from empirical studies and design inclusive research, and were implemented in a collection of demonstrators.Design EngineeringIndustrial Design Engineerin

Life Cycle Assessment of Wire + Arc Additive Manufacturing compared to green sand casting and CNC milling in stainless steel

Wire and Arc Additive Manufacturing (WAAM) is a metal 3D printing technique based on robotic welding. This technique yields potential in decreasing material consumption due to its high material efficiency and freedom of shape. Empirical measurements of WAAM, using a deposition rate of 1 kg/h, were performed on site of MX3D. The measured power consumption per kg stainless steel is 2.72 kW, of which 1.74 is consumed by the welder, 0.44 by the robotic arm, and 0.54 by the ventilation. The material loss was 1.1%. A 98% argon 2% CO2 welding gas was used with a flow of 12 l/min.A cradle-to-gate Life Cycle Assessment (LCA) was performed. To give this assessment context, green sand casting and CNC milling were additionally assessed, through literature and databases. The purpose of this study is to develop insight into the environmental impact of WAAM. Results indicate that, in terms of total ReCiPe endpoints, the environmental impact of producing a kg of stainless steel 308 l product using WAAM is comparable to green sand casting. It equals CNC milling with a material utilization fraction of 0.75. Stainless steel is the main cause of environmental damage in all three techniques, emphasizing the importance of WAAM's mass reduction potential. When environmentally comparing the three techniques for fulfilling a certain function, optimized designs should be introduced for each manufacturing technique. Results can vary significantly based on product shape, function, materials, and process settings.Accepted author manuscriptMaterials and Manufacturin

Development of a Motion System for an Advanced Sailing Simulator

To train competitive sailing in a virtual setting, motion of the boat as well as haptic feedback of the sail lines is essential. When discussing virtual environments (VEs) the concept of presence is often used. In this study we develop a sailing simulator motion system to research what factors contribute to the participants’ sensation of presence when sailing in a VE. The developed simulator includes the development of a mainsheet force feedback system and a novel motion platform, connected to a high-quality graphics sailing simulation. In future research, the developed system will be used to study which sail training type can be performed in simulated environments, and if the system can be used as a valid testbed for perception-action experiments.Design EngineeringIndustrial Design Engineerin