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Engineering design of 3D printer
Schoula, Šimon ; Blecha, Radim (referee) ; Bradáč, František (advisor)
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.
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The design of sand mixer with output range 5-12 TPH
Bobkovič, Štefan ; Pavlík, Jan (referee) ; Bradáč, František (advisor)
The aim of this diploma thesis is the structural design of continous mixer with output range 5-12 tons per hour. The work contains a brief description of mixing technology and basic parameters of similar machines. The work is devoted to the design of double-arm sand mixer with a belt conveyor. An important part of this diploma thesis is a 3D model of fundamental parts of sand mixer, as well as its composition. Based on the 3D model is elaborated strenght analysis of selected parts with finite element method. The work is accompanied by manufacturing drawings of selected components and assembly drawing of deposit of mixing blades to the shaft.
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moving objects tracking
Bradáč, František ; Gogol, František (referee) ; Richter, Miloslav (advisor)
The thesis deals with founding and tracking of moving objects inside of visual field and prediction of their future position. The created methods combine few approaches for solution this problem. First, the most probable of the static part of the observed scene is created. Then this model is used to detect moving objects. The correspondence of objects between two consecutive pictures is performed by analyzing of motion of these objects. For analyzing of motion of the objects optical flow is used. Prediction of the future position is performed by Kalman filter. Providing suitable condition these methods are able to track the moving objects even if these objects are passing closely or colliding. The methods are implemented in language C++ and their functionality was verified by sample with scanned non static scene.
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The design of sand mixer with output range 3-5 TPH
Haluza, Lukáš ; Pavlík, Jan (referee) ; Bradáč, František (advisor)
The subject of this diploma thesis is engineering design of the continuous mixer with output range 3-5 TPH. Mixer is instrumental to mixing sand mixture intended to non-permanent sand forms in foundry. Proposed construction has to fulfill the specified functional requirements and parameters. Parts of solution are also necessary analytical and FEA calculations.
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The modernization of CNC system of machine EMCO
Velen, Bohumil ; Huzlík, Rostislav (referee) ; Bradáč, František (advisor)
The main goal of this bachelor thesis was to design a possible virant of a new control system whitch will replace the old one on a CNC machine. The replacement of the control system is also realated to the replacement of drives motors as well as individual motors. The work compared several possible variants of proposals for the druve of axes and spindel, from whitch the best were selected. The next step was to select the control system with whitch the configuration of individual motors and control motors was related. Part of the work is the processing of electrical design and program.
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Development of software for laboratory model of CNC manipulator
Pivoňková, Jana ; Bražina, Jakub (referee) ; Bradáč, František (advisor)
This bachelors thesis focuses on development of software for laboratory model of CNC manipulator. Research part discuss the problematics of robotic manipulators and their control systems. Furthermore, the thesis focuses on the selection of both design and software solutions, which are further developed into the final design. Lastly, the thesis deals with the implementation of the final solution and its practical debugging.
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The modernization of CNC system of machine EMCO
Velen, Bohumil ; Huzlík, Rostislav (referee) ; Bradáč, František (advisor)
The main goal of this bachelor thesis was to design a possible virant of a new control system whitch will replace the old one on a CNC machine. The replacement of the control system is also realated to the replacement of drives motors as well as individual motors. The work compared several possible variants of proposals for the druve of axes and spindel, from whitch the best were selected. The next step was to select the control system with whitch the configuration of individual motors and control motors was related. Part of the work is the processing of electrical design and program.
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Design of dosing device for chocolate 3D printing
Valenta, Otakar ; Tůma, Zdeněk (referee) ; Bradáč, František (advisor)
This bachelor thesis deals with the research and design of a printhead of a 3D chocolate printer. It aims to perform a study of the extension of the 3D portal manipulator printhead for 3D chocolate printing. The first part provides an overview of the current state of knowledge and research is performed. The next part evaluates the information from the research and their applicability to the design of the printhead. The last part shows the constructional solutions of the print head.
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