This work deals with problematics if industrial robotic arms, with theirs constructions, controling and with theirs role in Industry 4.0. Work describes the process of development and realization of the industrial robotic arm model by 3D printing. Besides construction fo model, work deals with firmware, software and inversion kinematics crucial to controling. Model of robotic arm will be used as learning tool.

This diploma thesis deals with the study of 3D printing based on the FDM method. This method focuses on the possibility of using two extruders it means that the composite parts can be printed. This diploma thesis describes the available variants of composite printing currently on the market. Based on the gained knowledge and the availability of 3D printers and software, individual variants of composite parts were printed. A tensile test was performed on these samples to determine the strength characteristics. Additionally, compatibility and adhesion of two selected materials were tested. Based on the testing is made an evaluation of the achieved results, effectiveness and feasibility.

The aim of the diploma thesis is to create a 3D model of the given object using laser scanning technology. Subsequent adjustments of the model and its separate preparation for possible 3D printing will be done through appropriate programs. The next 3D model of the identical object will be made based on the created photos and will be edited and prepared in the same way for possible 3D printing.

The target of this work is the development of a monitoring system for 3D printing by the Fused Deposition Modeling method, which will be able to identify printing error conditions. During the solving process the needed error conditions were identified. Then, an algorithm was programmed to identify the error condition using the criterion. The resulting Monitoring Hardware was implemented in the printer and experimentally verified. A system has been developed that can identify error conditions with an accuracy of 94.7%. The main benefit of this work is the automatic identification of error conditions that stop printing if necessary. This leads to a reduction in scrap and cost savings. In the future, the software could automatically adjust the print parameters when identifying an error condition. This would prevent or completely eliminate the error condition without user intervention.

The aim of this work deals with the design and manufacture of a device for mixing of magnetic beads in solution by magnetic field. It is based on my previous bachelor thesis, where the device was created for one microtube (one sample). In this following work, the three improved variants for mixing and separation of 96 samples at one time were designed. The first variant of device, derived from functional prototype from bachelor thesis, was manufactured. First, the magnetic circuit and power converter were designed. Subsequently, the device was manufactured just for one microtube due to functionality testing. The third variant was realized only experimentally, the construction was designed in CAD program, and individual parts were created using 3D printer. As an alternative solution, which should be the compromise among electromagnetic and mechanical stirring, additional prototype was manufactured using 3D printer and CNC instrument. This prototype utilizes neodymium magnets and a stepper motor. The capability of magnetic beads mixing in solution was verified.

This dissertation work deals with the thermic and the mechanical behavior of plasticized bio-plastics and bio-composites for the 3D printing applications. The influence of plasticizer chemical structure on thermic and mechanical properties of plasticized polymeric blends from the poly-3-hydroxybutyrate and the poly lactic acid was investigated. Used plasticizers are based on derivative of citric acid. The influence of plasticizers on polymeric matrix and their compatibility was estimated by gear torque rate of melt mixer, respectively rate of plasticizer migration from the material during higher temperature. The plasticizer structure influence on the glass transition temperature and on the kinetics of crystallization of plasticized material was investigated by modulated differential scanning calorimetry. The behavior of material during 3D printing was also observed. Mechanical properties of printed samples, especially their elongation at break, were determined by tensile tests. The largest softening effect was observed using tributylcitrate plasticizer, where the glass temperature decreased by 35 °C and elongation at break increased by 150% compared to non-plasticized reference material. This plasticized polymeric blend showed also sufficient 3D printing properties and was used as the matrix for composites in the next part of this work. Composites were filled by kaolin, limestone, halloysit, fumed silica, talc, magnesium hydroxide and chopped flax fibers. Particle distribution in composites in dependence of used surface treatment of filler was observed by scanning electron microscopy. The influence of composite filler on rheological properties, crystallization kinetics and thermal stability of composites, was observed by viscometry and differential scanning calorimetry. Their mechanical properties and heat deflection temperature were observed on samples prepared by 3D print. Kaolin in composite material showed homogeneous particle distribution and insignificant nucleation effect and influence on thermic stability. Composite filled by kaolin also showed 18% smaller warping during 3D printing compared to non-filled reference. Consequently kaolin was evaluated as suitable inorganic filler for bioplastic composite intended for 3D print and this composite was used in the following part of this thesis. Method of mathematical prediction of Young's modulus was described for composite samples prepared by 3D print. Composites filled by one type of filler – kaolin, or limestone, resp. by combination of both fillers were investigated on the basis of the micromechanic Halpin-Tsai model modified by the semiempiric multiparametric Cerny's equation. Additive and combinational method of Young's modulus evaluation is used for composites with hybrid filling. Deflection of measured and theoretical Young's modulus value of composite filled with kaolin was decreased by established correction from 21% to 1% and for composites filled with limestone from 13% to 9%. In this manner it is possible to predict the Young's modulus of the samples prepared by 3D print.

The submitted thesis deals with a study of composite materials and processing them using 3D printing technology. The experimental part of this thesis is focused on the production of test samples with the use of additive technology Fused Deposition Modeling and Continuous Filament Fabrication. The composite samples made of common onyx material, individually reinforced with continuous carbon fiber filaments, kevlar, or fiberglass, were made with Marforged Mark Two 3D printer. The other samples made of PETG PM and PETG CFjet materials were made with Original Prusa i3 MK2S 3D printer. For technological evaluation, a tensile test was performed on samples, following the norm EN ISO 527-2:2012. Based on results obtained from tensile testing, the properties of materials strength and usability are verified and compared. In this work, the production process is proposed, and technical-economic evaluation is made. In conclusion, achieved results and overall benefits of this work are summarised.

This master’s thesis deals with creating a universal module with Ethernet interface and its using for digital values measurement. The main module components are gate array FPGA, microprocessor, PHY chip and RJ45 connector. Printed circuit board is in this thesis designed in Eagle. The chase for board is drawn in SketchUp and printed on a 3D printer. There is a code implemented in created universal module that is performing the function of logic analyzer. Data measured by the analyzer are sent to the Ethernet using UDP/IPv4 protocol. The last part is creating an application in C# to display the measured waveforms on a PC.

Modern production technologies have fostered mass production and standardization of affordable goods. Luxury and culturally meaningful symbols have become common place and largely devoided of their significance. How is our cultural identity affected by this phenomenon? Yet it survives and transforms itself. Voyage Voyage is a coffee set associated with different cultural identities. The set highlights the dialogue that exists between different cultures. The containers are inspired by blue and white porcelain; a material and technique created in China, imported into Europe, and then reinterpreted and appropriated. The set explores how traditional patterns and decoration lends meaning and social value to objects. It acts as an incentive to start discussion and reflection around globalization and the standardization of our environment. It is an invitation to discover different cultures, their similarities and differences, as well as acknowledge them and reflect on our traditions and their iconic symbols.

Orientador: Marizilda dos Santos Menezes / Resumo: A fabricação digital se tornou uma realidade para a produção em diversos setores da indústria nos últimos anos. Com seu uso desenvolvido e consolidado em alguns setores como a medicina, a arquitetura e a robótica, ela ainda é pouco explorada na moda apresentando um grande potencial para construção de superfícies que possam ser vestidas. O uso da fabricação digital implica na concepção tridimensional da superfície vestível o que traz ao Design de Moda desafios a serem superados no que diz respeito ao custo, ao uso dos materiais, à distribuição de produtos e, principalmente, às formas de criação e construção. Sendo assim, esta pesquisa se propõe a investigar o desenvolvimento de superfícies tridimensionais mediante os processos de manufatura aditiva sob a ótica do Design de Superfícies. Analisa-se a viabilidade do uso destes métodos para a construção de superfícies vestíveis e são propostas estratégias para a utilização, de maneira a contribuir com o conhecimento teórico acerca do Design de Superfícies no que tange a tridimensionalidade e ao uso das tecnologias de fabricação digital. Para tal, inicia-se o trabalho com uma revisão bibliográfica sobre o Design de Superfícies, a fabricação de superfícies vestíveis ao longo da história e sobre a manufatura aditiva, em seguida, parte-se para a análise dos projetos realizados por designers envolvendo as superfícies tridimensionais e a fabricação digital, para então proceder com experimentações. Propõe-se a construção por meio de módu... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Digital manufacturing has become a reality for production in various industry sectors in recent years. With its use developed and consolidated in some sectors such as medicine, architecture and robotics, it is still poorly explored in fashion presenting a great potential for construction of wearable surfaces. The use of digital fabrication implies the three-dimensional design of the wearable surface which brings to Fashion Design challenges to be overcome with regard to cost, the use of materials, the distribution of products and especially the forms of creation and construction. Thus, this research aims to investigate the development of three-dimensional surfaces through additive manufacturing processes from the perspective of Surface Design. The feasibility of using these methods for the construction of wearable surfaces is analyzed and strategies for their use are proposed, in order to contribute to the theoretical knowledge about surface design in terms of three-dimensionality and the use of digital manufacturing technologies. To this end, the work begins with a literature review on Surface Design, the manufacture of wearable surfaces throughout history and on digital fabrication, then starts with the analysis of designs carried out by designers involving surfaces. dimensions and digital fabrication, and then proceed with experimentation. Modular construction is proposed as the main strategy for the construction of wearable surfaces through additive manufacturing. / Doutor