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Design and manufacture of a sports handle for wristwatches
Ábel, Pavol ; Gregor, Lukáš (referee) ; Zemčík, Oskar (advisor)
The bachelor thesis deals with design and production of a sports watch holder using 3D FDM printing technology. The aim of the work is to design, manufacture, technically and economically evaluate the production of the holder model. The first part deals with the search of FDM printing and printers. In the following sections, it covers the design and subsequent production of the holder.
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Innovation Of The Control System Of Fused Deposit Modeling Low-Cost 3D Printer
Ctibor, Jiří
This paper describes new hardware conception of the control system of Arduino based RepRap Low-Cost 3D printer. Firstly, there is slightly introduced the general structure of the control systems of these printers. Then the main attention is paid to design of the new stepper driver module in addition with some new innovative features. It needs to be noted that paper is oriented only to hardware point of view, not to software implementation.
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Universal Cloud-Based 3D Print Slicer
Vejčík, Jakub ; Zbořil, František (referee) ; Kočí, Radek (advisor)
This bachelor thesis deals with the proposal and implementation of a cloud tool for preparation 3D models for 3D printing. 3D printing become a part of our lives and it is getting into schools, where it combines the digital world with the physical world. Nowadays schools have not sufficient computational power to handle demanding 3D models for 3D printing. This ascertainment has led me to create a cloud tool, because cloud provides sufficient computational power and it can be shared beetween multiple users at the same time. The cloud tool solves the problem of insufficient power to translate 3D models to G-code, which understands 3D printer. Solution is done by letting the demanding computing logic on the cloud and user just edit model according to his ideas in the web interface of cloud tool.
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Composite printing for 3D FDM printer
Műller, Jakub ; Sliwková, Petra (referee) ; Zemčík, Oskar (advisor)
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.
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Supportless 3D print by 6-axis robotic arm
Krejčiřík, Petr ; Horák, Zdeněk (referee) ; Škaroupka, David (advisor)
This diploma thesis deals with the solution 3D printing by KUKA robotic arm without realization of supporting structures. The 6-axis KUKA KR 60HA robotic arm allows adjusting 3D printing strategies compared to classical 3D printing concept. The first part of the diploma thesis is about the identification of the current state of knowledge, especially the state of the experimental device for the robotic 3D print. To improve quality of the printed is necessary to modify the printing head and develop the suitable calibration principle. Special printing strategies were designed to rearch the 3D printing overhead volumes without creating support structure. A special alghoritm in the Grasshopper evnironment was developed for generating 3D print trajectory on the body surface. For the quality improvement it is necessary to optimize the process parameters. The final step is experimental 3D printing with the evaluation of surface dimensions, geometric precision and layer coherence in various printing strategies.
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The effect of a nozzle channel on printing parameters of FDM 3D printer
Rygl, Filip ; Prokeš, Tomáš (referee) ; Zemčík, Oskar (advisor)
This bachelor thesis follows up the influence of the nozzle channel on different parameters of printing using FDM / FFF method. The first part briefly describes the inclusion of this method in additive technologies. Then follows the description of the device for this involved method, printing parameters and research of used polymer materials. In the next chapter is proposed an experiment to test selected print parameters and there is described used equipment. The following part documents the outputs of the tests, their evaluation and comments.
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Building a 3D Printer
Škop, Martin ; Klepárník, Petr (referee) ; Španěl, Michal (advisor)
The aim of this Bachelor thesis is to analyse available options for 3D printing using FDM technology according to requests of cooperating company, to propose several drafts of electronical and software parts of 3D printers. This also includes their connection, functionality testing and implementation of one chosen draft. The core of this Bachelor thesis was to document the progress in building the 3D printer and also to solve arisen problems. The result of this Bachelor thesis is practical realisation of electronic part of 3D printer including basical tests. Secondary benefit of this Bachelor thesis is to explain the issue of 3D printing with the option of building custom 3D printer from PiBot components.
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3D FDM printer Rebel II and parameters of print
Pištek, Patrik ; Zouhar, Jan (referee) ; Zemčík, Oskar (advisor)
This work deals with a RepRap 3D printer. The introductory chapter describes rebuilding, the reason of the rebuilding and basic components of a 3D printer. The following is a selection of lesser-used materials PETG and nylon. The individual chapters summarized reviews of experimental studies and the types of samples used in the testing of similar machines. Based on this information the author design size and shape of the sample for the second experiment, chosed relevant technological parameters and proposed plan of the experiments. Investigated parameters are temperature of the nozzle and printing speed. Experimental part of this work includes two experiments. In the first experiment, thin-walled objects by width of a single fiber were printed. The surface quality of the fibers was observed under a microscope. The second experiment evaluated the dimensional variations of the samples in dependence on the aforementioned parameters. Samples were scanned at the office 2D scanner and arithmetic mean of surface roughness Ra was measured by roughness meter on the side and top wall of the samples. The results and recommendations of the author are summarized in separate sections. The temperature and speed affected the quality of the surface of extruded fibers. The effect of temperature on the quality of the bond between the fibers has been significant. Print speed heavily influences the dimensional accuracy and deformation of geometric elements of the sample. The effect of temperature on dimensional accuracy was much less pronounced. In discussion part are expressed some ideas for future experiments. The conclusion summarizes all the gains of this work.
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The manipulator design for KAMBot robot
Popovský, Pavel ; Žalud, Luděk (referee) ; Burian, František (advisor)
This bachelor’s thesis deals with design and construction of small robotic manipulator for KAMBot robot using a 3D printer. The work also includes the design of a control unit and the electronics needed to support communications via the I2C protocol. The theoretical part documents the choice of mechanical and logical arrangement with mathematical analysis and describes the I2C protocol. The practical part describes the structure of the manipulator, the design of electronics to the PCB and implementation of I2C protocol. Last part documents the control of the manipulator and final results.
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3D Printer
Ctibor, Jiří ; Knobloch, Jan (referee) ; Cipín, Radoslav (advisor)
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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