The Diploma thesis deals with geometry calculation and design tools for the functional parts to eliminate the spring-back of the irregular shaped sheet metal. In this thesis there is shown one of the possible ways for 3D modelling in the recent engineering company.

This thesis deals with the design and realisation of the stereolithographic 3D printer using DLP projector. The work describes the selection of suitable components for the printer´s mechanical construction and manufacturing of this construction, the solution of printer´s electronics and creation of the printer´s host software and firmware. Recommendations based on executed experiments for the parameters´ values settings have been given here.

This master thesis summarizes the current knowledge about non-commercial 3D printing FDM technology. The goal of this thesis is to demonstrate the gained knowledge by building a 3D printer which can partially replicate itself, and to evaluate its technological parameters. The experimental part of this work is focused on the impact of the changes in technological parameters of printing on mechanical properties of printed parts.

This diploma thesis serves as experimental proof of real world capabilities of computer designed hobby CNC milling machine with its parts printed on a 3D printer. First half is a brief introduction of CNC technologies to non-professional audience. Second part together with 3D model works as manual to build your own machine. Priority was to keep costs to minimum with decent accuracy still in mind.

The content of this diploma thesis is a design of construction and selection of suitable material for upper-carrier part used for racing vehicle, produced by FDM 3D printing with the alternative option to replace an existing part, which was produced by conventional technique of CNC machining. Various versions of the experimental part are analyzed by FEM and compared in terms of safety coefficient with target to select the most appropriate construction design. The chosen version of the model is at the end compared with already existing part, which was also analyzed by FEM.

The thesis is focused on structural design of machine prototype for 3D print. Used technology is stereolithography. Machine design must be easy to built and low cost. First part of thesis is especially focused on FDM printers, because the design of my printer is more similar to them. Based on systems analysis are defined all parts of printer. Next part of thesis describes SLA technology from which proceed another requirements for machine. Second part contains final structural design of machine including necessary calculations and simulations. Another parts of thesis are focused on control system of printer including software, risk analysis and technical drawings of selected machine parts.

This thesis deals with design and productions of low-cost robot used for presentation and marketing purposes of companies CUTTER Systems spol. s r.o. and N-ROTE Mechanical s r.o. The main task of this robot is to serve beverages into glass containers.

Ida Renström Evaluation of autostereoscopic 3D video for short-term exposure, produced using semiautomatic stereo-to-multiview conversion ABSTRACT In this study, I investigate semiautomatic conversion from stereoscopic 3D to autostereoscopic 3D with multiple views. The conversion simplifies the production compared to creating autostereoscopic 3D from scratch. The research question of this study is; what level of holistic experience can be achieved from converted 3D compared to stereoscopic 3D video with glasses? The intended 3D contexts for this study require or are favored by glassesfree 3D with multiple views, and the exposure of 3D is shorttermed. I conducted user tests in a controlled setting as well as a public setting. The results show that it is difficult to make a general evaluation of the user experience of the final product, because different individuals perceive 3D very differently. Results from experiments in a controlled setting, where stereoscopic 3D was used as a direct reference, indicate that converted autostereoscopic 3D does not achieve the same perceived video quality as stereoscopic 3D. However, the fact that no glasses are needed compensates for this in the overall user experience. In an experiment with a public setting, where the participants' previous experiences of stereoscopic 3D were used as reference, a majority perceived the quality of converted autostereoscopic 3D to be better than, or equivalent to, that of previous experiences with stereoscopic 3D. A majority also said that the experience was positive. The latter experience made u se of an environment and situation that was close to real life and the intended types of contexts. Therefore, these results argue that autostereoscopic multiview 3D video converted from stereoscopic 3D is useful and gives a good holistic experience compared to stereoscopic 3D with glasses. This is in contexts favored by glassesfree 3D with multiple views and where the exposure of 3D is shorttermed. An autostereoscopic display in a retail space, where people walk by and view advertised material for a few seconds, is one example of a context suited for converted autostereoscopic 3D. / Ida Renström Evaluering av autostereoskopisk 3D-video för korttidsexponering, producerad genom semiautomatisk stereo-till-multiview konvertering SAMMANFATTNING I denna studie undersöker jag semiautomatisk konvertering från stereoskopisk 3D till autostereoskopisk 3D med multipla vyer. Konverteringen förenklar produktionen, jämfört med att skapa autostereoskopisk 3D från grunden. Frågeställningen i denna studie är; vilken helhetsupplevelse resultatet av konverteringen ger i jämförelse med stereoskopisk 3D, inom vissa specifika användningsområden. Dessa användningsområden utgörs av 3D-sammanhang som starkt gynnas av glasögonfri 3D med multipla vyer och där exponeringen av 3D är kortvarig. Jag genomförde användartester i dels kontrollerad miljö samt offentlig miljö. Resultaten i denna studie visar att det är svårt att göra en generell utvärdering av användarupplevelsen av de resultat som denna konverteringsmetod ger, eftersom 3D upplevs väldigt olika av olika individer. Experimenten i kontrollerad miljö, där stereoskopisk 3D användes som direkt referens, visar att konverterad autostereoskopisk 3D håller en lägre upplevd kvalité än stereoskopisk 3D. Det faktum att inte glasögon behövs kompenserar dock för detta när man ser till den totala upplevelsen och de krav som situationen ställer. Vid det offentliga experimentet, med deltagarnas tidigare erfarenheter av stereoskopisk 3D som referens, ansåg en majoritet att den upplevda kvalitén av konverterad autostereoskopisk 3D var bättre än eller lika bra som tidigare erfarenheter av stereoskopisk 3D. Det senare experimentet genomfördes i en miljö och ett sammanhang som var mer likt verkligheten och det tänkta sammanhanget än det tidigare. Därför väger dessa resultat tungt och argumenterar för att autostereoskopisk 3D video med multipla vyer konverterad från stereoskopisk 3D är användbar och ger en bra helhetsupplevelse, inom användningsområden som starkt gynnas av glasögonfri 3D med multipla vyer och där exponeringen av 3D är kortvarig. Ett konkret exempel på detta kan vara att folk passerar en autostereskopisk skärm på en offentlig plats och möter reklam i 3D under några sekunder.

3D printing for microfluidic device fabrication has received considerable interest in recent years, in part driven by the potential to dramatically speed up device development by reducing device fabrication time to the minutes timescale. Moreover, in contrast to traditional cleanroom-based fabrication processes that require manual production and stacking of a limited number of layers, 3D printing allows full use of the 3D fabrication volume to lay out microfluidic elements with complex yet compact 3D geometries. The Nordin group has successfully developed multiple generations of high resolution printers and materials for microfluidic devices that achieve this vision. However, because of the customizability of design in the Nordin microfluidics lab, finding settings that lead to a successful print can involve a taxing cycle of adjustments. The current 3D microfluidics design flow, which requires each student to find settings for each design, makes it difficult for new students to rapidly print successful designs with new components. In this thesis I present an Improved Microfluidic Design Approach (IMDA) that is based on a pre-defined component library. It allows students to reuse a library of components such that a new designer can utilize the work of more experienced predecessors, allowing the lab to avoid repeating the same parameter tuning process with each student. So far the tool has shown the feasibility of printing new designs based on previously tested components. Ultimately, my work demonstrates an attractive path to make the 3D printed microfluidic design experience more robust, repeatable, and easier for newcomers to learn.

La moda se mantiene en un cambio constante debido al entorno. Cada temporada los diseñadores crean colecciones y proponen nuevas tendencias que buscan responder las exigencias del público. A lo largo de los años, se ha notado un incremento significativo en el uso de la tecnología por parte de las personas. Es por ello que las nuevas tecnologías se han comenzado a fusionar con el indumento tradicional. En los últimos años, los diseñadores están cada vez más dispuestos a optar por este tipo de técnicas en sus colecciones. Pese a esto, aún se desconoce cómo es que la impresión 3D ha impactado en la industria de la moda en nuestro país. Por consiguiente, la presente investigación tiene como fin responder la siguiente pregunta: ¿Cuál es el impacto de la impresión 3D en la moda en Lima entre el 2016 y 2020? Para resolverlo, se debe conocer el desarrollo de esta tecnología y su definición de manera detallada. De igual manera, se busca describir cómo se aplica la impresión 3D en la moda en Lima. Para ello, se entrevistarán a 8 diseñadores peruanos que han realizado colecciones de moda utilizando esta tecnología. Para esta investigación se utilizará el método cualitativo con enfoque fenomenológico. Dicha información se obtendrá mediante entrevistas semiestructuradas con preguntas abiertas. Cabe mencionar que la presente investigación aportará un punto de partida como fuente de estudio para diversos proyectos académicos. / Fashion is constantly changing due to the environment. Each season designers create collections and propose new trends that seek to meet the demands of the public. Over the years, there has been a significant increase in the use of technology by people. That is why new technologies have begun to merge with traditional clothing. In recent years, designers are increasingly willing to opt for this type of technique in their collections. Despite this, it is still unknown how 3D printing has impacted the fashion industry in our country. Therefore, this research aims to answer the following question: What is the impact of 3D printing on fashion in Lima between 2016 and 2020? To solve it, you must know the development of this technology and its definition in detail. In the same way, it seeks to describe how 3D printing is applied in fashion in Lima. To do this, 8 Peruvian designers who have made fashion collections using this technology will be interviewed. For this research, the qualitative method with a phenomenological approach will be used. This information will be obtained through semi-structured interviews with open questions. It is worth mentioning that this research will provide a starting point as a source of study for various academic projects.