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A single-speed gearbox made by 3D printing
Hykolli, Denis ; Jaroš, Aleš (referee) ; Fiala, Zdeněk (advisor)
The aim of these theses was the creation of a single-stage gearbox by additive technology FDM / FFF. By chosen values was made dimension calculation for gears. The 3D model of the gearbox was designed in 3D software Autodesk Inventor. Single parts were produced on an FDM 3D printer by Prusa Research. Manufacturing programs for parts were prepared in PrusaSlicer. These programs were used for producing individuals parts on 3D Printer. Transparent material and printing parameters for the top of the gearbox were chosen by visual test and test of light intensity. The total cost of model production is calculated in the work. The result of these is a completely working model of a single-stage gearbox with a transparent top of the gearbox.
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Tactus
Zelený, Tomáš ; Pangrácová, Lucie (referee) ; Gabriel, Michal (advisor)
This bachelor thesis builds on my previous 3D printed works in space. The sculpture is made out of support structure in 3D software and shifted into reality using print. The result is a totem pylon printed out of PETG material.
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Computational modeling of 3D printing structures made of PET-G material
Michálek, Mojmír Cyril ; Halama, Radim (referee) ; Vosynek, Petr (advisor)
Master’s thesis deals with computational modeling of 3D printing process done by FDM method made from PETG material using finite element method. Research section contains a brief description of 3D printing process modeling possibilities using finite element method and summarizes fundamental mechanical properties of thermoplastics. In practical section there is an evaluation of specimens printed of PETG material tensile tests. Further there is performed a sensitivity analysis of various influences on vertical imperfection of printed part Idler and is done its design modification, which is based on results of this analysis.
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Sintering of parts produced by 3D FDM printing
Koníček, Jan ; Fiala, Zdeněk (referee) ; Zemčík, Oskar (advisor)
This diploma thesis deals with the issue of sintering of parts produced by 3D FDM printing. The main aim of the work is the design of a sample part and the selection of suitable materials for testing. Subsequently, an experiment is carried out, which involves printing samples from different materials on a 3D printer and sintering them in salt powder at different time intervals. This is followed by examination of the surface after sintering and weight changes due to material degradation. Then a tensile test is performed to show changes in tensile strength of the tested materials and as the last part of the experiment, fracture surfaces are examined under a microscope.
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Porovnání pevnostních charakteristik filamentů ovlivněných prostředím
ČECH, Jan
The thesis aims to create models using 3D printing from different filament materials, then expose them to selected environmental influences and evaluate their characteristical strength. This thesis contains a concise summary of 3D printing methods and their parameters in the theoretical part. Furthermore, a description of the properties of the materials used in the work. Specifically, the materials are acrylonitrile butadiene styrene (ABS), acrylonitrile styrene acrylate (ASA), Polylactic acid (PLA) and Copolyester (PETG). The practical part aims to create models using 3D printing and research the impact of the environment on these models. Experiments are conducted in room temperature, reduced temperature, elevated temperature, and UV radiation environments. Following these experiments, the models are subjected to a traction test and the results of this test are then compared. In the discussion part of the thesis, the results and some problems from the whole experiment are thereafter evaluated.
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A single-speed gearbox made by 3D printing
Hykolli, Denis ; Jaroš, Aleš (referee) ; Fiala, Zdeněk (advisor)
The aim of these theses was the creation of a single-stage gearbox by additive technology FDM / FFF. By chosen values was made dimension calculation for gears. The 3D model of the gearbox was designed in 3D software Autodesk Inventor. Single parts were produced on an FDM 3D printer by Prusa Research. Manufacturing programs for parts were prepared in PrusaSlicer. These programs were used for producing individuals parts on 3D Printer. Transparent material and printing parameters for the top of the gearbox were chosen by visual test and test of light intensity. The total cost of model production is calculated in the work. The result of these is a completely working model of a single-stage gearbox with a transparent top of the gearbox.
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Computational modeling of 3D printing structures made of PET-G material
Michálek, Mojmír Cyril ; Halama, Radim (referee) ; Vosynek, Petr (advisor)
Master’s thesis deals with computational modeling of 3D printing process done by FDM method made from PETG material using finite element method. Research section contains a brief description of 3D printing process modeling possibilities using finite element method and summarizes fundamental mechanical properties of thermoplastics. In practical section there is an evaluation of specimens printed of PETG material tensile tests. Further there is performed a sensitivity analysis of various influences on vertical imperfection of printed part Idler and is done its design modification, which is based on results of this analysis.
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Tactus
Zelený, Tomáš ; Pangrácová, Lucie (referee) ; Gabriel, Michal (advisor)
This bachelor thesis builds on my previous 3D printed works in space. The sculpture is made out of support structure in 3D software and shifted into reality using print. The result is a totem pylon printed out of PETG material.
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