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Dissertations / Theses on the topic 'FDM RepRap'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Kratochvíl, Tomáš. "3D FDM tiskárna reprap a parametry tisku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232069.

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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.

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2

Knapil, Josef. "Stavba a aplikace 3D FDM tiskárny typu deltabot." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232111.

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The thesis describes design and aplication of 3D FDM printer type of delta. The first part describes methods of rapid prototyping. The second part describes 3D printers type of delta. The third part deals with construction and calibration of delta printer. In the fourth part are made suitable modifications to the design of the printer, to improve the quality of printing, which is then applied on a sample product. The final section is devoted to technical and economic evaluation.

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3

Světlík, David. "Povrchová úprava ABS součástí po 3D FDM tisku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232057.

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This master thesis deals with the surface treatment of parts made of plastic produced using FDM technology and design of technological device for surface treatment. The thesis describes FDM principles, according to performed experiments in a technological device there are suggested technological conditions for the surface treatment of parts made of ABS plastic. In the end of the thesis, there are calculated costs of the technological device and its operating costs, also mechanical properties, surface roughness and other specifications from before and after the treatment are compared.

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4

Bouchal, Petr. "Vývoj 3D FDM tiskárny implementace na trh." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241863.

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The result of this thesis is to create an overview of available 3D printing technologies, design a 3D FDM printer, create an instructional manual on the assembling and create a business model of a 3D printing company.

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5

Prouza, Tomáš. "Návrh duální tiskové hlavy pro FDM 3D tiskárnu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-242851.

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This master thesis is focused on a research in the field of 3D printing technology. During the research a particular technology, being regularly applied by the RepRap printers, is described. Mentioned technology is tested on a Rebel II printer model. The findings are applied to the dual 3D extruder design project. This dual 3D extruder is designed and made in two basic options, where the first option discovers the shortcomings and the second option is modified and tested. In the following step, assessment of applicability, functionality, as well as economic analysis of production of this dual 3D extruder is made.

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6

Břoušek, Lukáš. "Tepelné úpravy povrchu po 3D FDM tisku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318156.

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The topic of diploma thesis are surface heat treatments after 3D print by method Fused Deposition Modeling. In the introduction is located recherche of the given issue. Further, we describe the construction and process of the 3D printer construction, on which will be printed samples for experiments in the next part of the thesis. The aim is to determine the behavior and changes of surface structures of heat-affected samples from different materials. Furthermore, the suitability of the used methods and the possibility of their use in practice.

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7

Čuma, Zdeněk. "3D FDM tiskárna s výměnnou tiskovou hlavou." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444263.

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The aim of the work is to design and manufacture a mechanism for setting up and clamping the replaceable head of a 3D FDM printer. The first part of the thesis deals with 3D printing in general, the second part describes the FDM method. Part three is devoted to the selection and construction of a suitable 3D printer, the fourth part to the actual design of the head attachment. In the fifth part, a technical and economic evaluation is carried out.

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8

Bartoš, Radko. "Návrh temperovaného stolu pro FDM 3D tiskárnu s využitím simulace MKP." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231051.

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Master´s thesis deals with desing of a heated bed for FDM 3D printer using the finite element method. It is briefly described the history of RepRap printers, construction and mechanical parts. Are discussed two methods of heating, heated by PCB boards and using power resistors. Furthermore is work closely focused on power resistors. There are presented methods and procedures which leads to an optimal distribution of heated components on the board of heated bed. In conclusion are presented results of testing which are compared with the simulations in ANSYS.

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9

Sysel, Karel. "Návrh a zefektivnění parametrů FDM tisku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230120.

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The essence of the work is to test the possibilities specific type of simple 3D printing device, which has recently been getting more and more into the awareness of professionals and the general public. First, the work is focused on presentation 3D printing technology and current professional equipment, in the second part are experimentally evaluated possibilities of of a simple kind of 3D printers followed by assessment of the applicability of the device in engineering practice.

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10

Zítka, Lukáš. "Inovace 3D tiskárny typu Rep Rap." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-319860.

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The present Master thesis is focused on innovation and verification of the functionality of a 3D RepRap. The theoretical part of the thesis characterizes individual additive technologies. The practical part is focused on the design of the technical modifications of the printer in order to achieve the quality of the printing, while the current 3D printer design is compared with the innovative solution. The practical part tests the setting of print parameters, various materials for 3D printing and necessary finishing operations. The thesis is completed

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11

Kajzr, Miroslav. "Vzdálená kontrola 3D tiskárny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377137.

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The essence of this work is to summarize the knowledge about 3D printing, especially with FDM technologies. Create an overview of used FDM printing materials, identify their advantages and disadvantages, technical parameters and usability. Another purpose of the thesis is to examine the print quality and its problems and specify types of surface finishes for selected materials. The content also includes remote control and monitoring of the 3D print process using the Raspberry Pi microcomputer and the print server named Octoprint.

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12

Kutil, Jaroslav. "Vliv průměru trysky na kvalitu tisku 3D tiskárny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241095.

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The matter of this thesis is to find the influence of the diameter of the nozzle on the 3D printer´s print quality. The first part briefly characterizes the Rapid Prototyping technology and describes the RepRap project. The second part describes the construction of the experimental FMD 3D printer. The following section deals with technical printing parametres and their influence on the printed product. The experimental part of the thesis is focused on the impact of the discharge nozzle diameter on the mechanical properties, surface quality and shape accuracy of the final product and on the following recommendations of operational parametres.

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13

Gambaletta, Daniele. "Stampa 3D: progettazione e realizzazione di una stampante 3D FDM come caso di studio." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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La rivoluzione industriale che stiamo vivendo, detta Industria 4.0, sta incoraggiando le aziende all'utilizzo di sistemi intelligenti e di nuove tecnologie informatiche. La produzione additiva (detta stampa 3D) è considerata una tecnologia essenziale in questa fase dati i numerosi vantaggi che porta. In questo documento verranno descritte le caratteristiche della stampa 3D e i software necessari per realizzare un oggetto fisico partendo da un modello 3D digitale, prendendo come riferimento la stampante 3D progettata e realizzata utilizzando principalmente tecnologie open source.

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14

Ctibor, Jiří. "3D tiskárna." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242004.

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Master thesis deals with topic about 3D printers, concretely making hardware of control and power electronic for FDM 3D printer. The work could offer an overview about basic 3D printing technologies after reading. More information could be read about FDM technology, which is used in our printer, also with description of all important components. The furthest is discussed about electronic drives. If reader is interested in this topic, part of this thesis is schematic design of control electronics, which can be used to build own boards. Design of printed circuit boards is not present in attachment and can be obtained by contacting the author. For own control is used one of the open source control software. Mechanical problems and also mechanical design is done in parallel thesis by other student of Faculty of mechanical engineering.

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15

Koudela, Ondřej. "Návrh 3D tiskárny typu delta pi s temperovanou podložkou s využitím systémů CAE." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221074.

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This master's thesis deals with 3D printing using non-commercial 3D RepRap type printers. This work briefly describes development trends of non-commercial RepRap printers, theory of FDM print with analysis and comparison of materials, which are used in printing and the issue of the finite volume method and theory of heat diffusion. The practical part based on simulations from SolidWorks Flow Simulation discussed two basic methods of heating hot bed, then the temperature profile of hot end and the heat flow in full assembly of the printer. Outcome of this work is design an optimized model and the physical assembly of 3D printer delta pi type.

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16

Malovaný, Ondřej. "Využití 3D tisku v TZB." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392001.

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In the experimental part of this thesis there is an assessment of pressure bearing capacity of cylindrical nozzles printed using a 3D printer. In the theoretical part of this diploma thesis there are outlined the types of additive technologies focusing on the development of FDM printers, open designs and RepRap project. Descripti-on of the production process of 3D printing and application of additive technolo-gies in the field of HVAC. In the project part, the design of the forced ventilation of the Sports Hall is solved. The object is assessed in terms of heat losses and profits for priority rooms of functional units. Heat load coverage is carried out by air-conditioning equipment. In addition, a project is drawn up which contains all the text and drawings, including technical specifications and regulatory schemes.

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17

Huang, Chen-Bin, and 黃晨賓. "HARQ Scheme with Fuzzy System to Improve Repeat Request Performance for SC-FDMA Systems." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/57061842600163551084.

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碩士
國立東華大學
電機工程學系
101
This thesis focuses on Single Carrier Frequency Division Multiple Access (SC-FDMA) as uplink transmission technique applied to Long Term Evolution (LTE) for next generation mobile communication system. It proposes a technology by using Hybrid Automatic Repeat Request (HARQ) to reduce the Bit Error Rate (BER) of data transmission. Then it incorporates the fuzzy system and sets a rule to get the best retransmission times to improve the performance of system. First, according to the training simulation on the existing channels, various results can be obtained to show the relationship between the Signal to Interference Noise Ratio (SINR) and the BER. Then the rule and the threshold of fuzzy system can be set based on the information. After that, the pilot signal is plugged into the signal of transmission, and channel estimation is used to get the outcome of SINR. Next, it uses the outcome of SINR as the input data of fuzzy system, then deduces the retransmission times by the result of inference from fuzzy system. The result of deduction could get the best selection for the retransmission times and have adaptive retransmission activity. Through the incorporation, not only does the system have lower BER, but it also reduces the retransmission times effectively.

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18

Mullan, Sean. "Tidal sedimentology and geomorphology in the central Salish Sea straits, British Columbia and Washington State." Thesis, 2017. https://dspace.library.uvic.ca//handle/1828/8943.

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Intra-archipelago waterways, including tidal strait networks, present a complex set of barriers to, and conduits for sediment transport between marine basins. Tidal straits may also be the least well understood tide-dominated sedimentary environment. To address these issues, currents, sediment transport pathways, and seabed sedimentology & geomorphology were studied in the central Salish Sea (Gulf and San Juan Islands region) of British Columbia, Canada and Washington State, USA. A variety of data types were integrated: 3D & 2D tidal models, multibeam bathymetry & backscatter, seabed video, grab samples, cores and seismic reflection. This dissertation included the first regional sediment transport modelling study of the central Salish Sea. Lagrangian particle dispersal simulations were driven by 2D tidal hydrodynamics (~59-days). It was found that flood-tide dominance through narrow intra-archipelago connecting straits resulted in the transfer of sediment into the inland Strait of Georgia, an apparent sediment sink. The formative/maintenance processes at a variety of seabed landforms, including a banner bank with giant dunes, were explained with modelled tides and sediment transport. Deglacial history and modern lateral sedimentological and morphological transitions were also considered. Based on this modern environment, adjustments to the tidal strait facies model were identified. In addition, erosion and deposition patterns across the banner bank (dune complex) were monitored with 8-repeat multibeam sonar surveys (~10 years). With these data, spatially variable bathymetric change detection techniques were explored: A) a cell-by-cell probabilistic depth uncertainty-based threshold (t-test); and B) coherent clusters of change pixels identified with the local Moran's Ii spatial autocorrelation statistic. Uncertainty about volumetric change is a considerable challenge in seabed change research, compared to terrestrial studies. Consideration of volumetric change confidence intervals tempers interpretations and communicates metadata. Techniques A & B may both be used to restrict volumetric change calculations in area, to exclude low relative bathymetric change signal areas.
Graduate
2018-12-07

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