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Simulation of a temperature field of the FDM printhead
Rousek, Jakub ; Dvořák, Jaromír (referee) ; Zemčík, Oskar (advisor)
The aim of this thesis is to analyze the thermal behaviour of the printhead used on RepRap 3D printers. The main focus was on heatbreak zone, where are located important processes in terms of softening and melting of materiál. For choosed printheads is looked at effect of their design on the temperature profile and lenght of thermoplastic transition phase. For the purpose of simulations, 3D models were created using CAD system. These models were then used as vase for the simulation models of temperature distribution and spreading. The prinhead used for CR10 printer reach significantly worse result of heat distribution in heatbreak for model with bolt attachment between heat block and heatsink. This attachment is increasing temperature at the bottom of of heatsink and also increasing length of transition zone. The same attachment is look at for the second type of printhead – A10M. Here is difference less noticable. The heat transfer by attachment bolts is compenzated by reducing thickness of wall in the heatbreaks. For the printhead type diamond was deemed necessery usage of insulation materiál between heat block and rst of the components. Insufficient insulation is increasing risk of clogging and thermal damage to construction supporting fan.
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Surface treatment of ABS parts after FDM 3D print
Světlík, David ; Slaný, Martin (referee) ; Zemčík, Oskar (advisor)
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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Usage of Modern Technologies for the Design of the Production of Children's Puzzle
Sedláková, Eva ; Kouřil, Karel (referee) ; Sedlák, Josef (advisor)
The bachelor thesis deals with the design and production of children's puzzle using modern methods and technologies. It characterizes the puzzle as a toy and its use, it as well describes the additive Rapid Prototyping technology, commercially available additive materials and their applications. The practical part describes the design of the individual parts of the puzzle in the SolidEdge parameter model and their production on a repro Prusa i3 printer. The last part of the bachelor thesis concerns with a technical- economic evaluation.
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Effect of the diameter of the nozzle on the 3D printer print quality
Kutil, Jaroslav ; Dvořák, Jaromír (referee) ; Zemčík, Oskar (advisor)
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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Surface heat treatment after 3D FDM print
Břoušek, Lukáš ; Slaný, Martin (referee) ; Zemčík, Oskar (advisor)
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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Remote control of 3D printer
Kajzr, Miroslav ; Jaššo, Kamil (referee) ; Vyroubal, Petr (advisor)
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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Reprap, 3D FDM printer
Minařík, Miroslav ; Madaj, Martin (referee) ; Zemčík, Oskar (advisor)
The essence of this bachelor’s thesis is describe RepRap, 3D FDM printer. First, the work is focused on presentation some posibilities of rapid prototyping and explain basic mechanics of FDM technology. In the second part, several types of RepRap printers are described and use 3D printer in practice.
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