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Holder of plastic filament for professional 3D printing technology FDM
Puchta, Daniel ; Dočkal, Kryštof (referee) ; Paloušek, David (advisor)
The aim of the Bachelor‘s thesis is to develop a spool holder for FDM 3D printing technology which allows to monitor the remaining and consumed material during printing and to ensure unwinding of the spool. The spool holder is intended for professional 3D printer Stratasys Dimension SST 1200. The first part of the thesis is focused on the construction. The second part of the thesis deals with electronics. The sensors and electronics are connected by Arduino which ensures their function. The source code has been written in Arduino. Partial functions of the spool holder have been experimentally verified.
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Setting of the material profile of stereolithographic 3D printing with a focus on dimensional accuracy
Topinka, Lukáš ; Koutecký, Tomáš (referee) ; Zatočilová, Aneta (advisor)
Additive technology of stereolithography works on the principle of curing a photosensitive polymer by laser or by DLP projector. Dimensional accuracy and quality of printing are affected by various parameters, such as exposure time and layer thickness. This bachelor thesis is focused on the description of the basic principles of stereolithography, including construction solutions for printers and their influence on the quality of printing. Furthermore, this thesis identifies the main parameters affecting the accuracy and suggests experiments for testing the influence of these parameters. At the end of this thesis, there is a description of the performed experiments, followed by a conclusion and suggestions for further development of this technology.
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Equipment for the dissolution of 3D printed support material
Vodehnal, Michal ; Škaroupka, David (referee) ; Paloušek, David (advisor)
The aim of this bachelor thesis is to produce a design of an automatic device that washes away and dissolves supports used by 3D printing machine Dimension SST 1200. The thesis contains chapters on a current state of knowledge of the device, its conceptual designs as well as a final engineering design, which is made of weldment and bought components. The proposed device enables the dissolution of the supports in a sodium hydroxide solution and their final washing in a secondary tank. The design also has protective electronic elements and a system for holding a basket. Technical documentation of the device is included in the thesis.
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Production and testing of the chain guide of the bicycle
Piruch, Martin ; Chladil, Josef (referee) ; Kalivoda, Milan (advisor)
This bachelor’s thesis deals with a designing, manufacturing and testing of chain guide for cross country mountain bike. In the first part construction types of chain guides is described. Next own design of chain guide is made. Suitable material and manufacturing method are chosen and chain guide is manufactured. Next part describes testing of the chain guide. In the end of thesis functionality, design, manufacturing method and using ability on the market are evaluated.
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Design of the extruder for 3D printing the composite parts
Šmalec, Petr ; Pavlík, Jan (referee) ; Kočiš, Petr (advisor)
The diploma thesis is focused on 3D printing of composites parts. Thesis deals with methods of additive manufacturing and describes principle of selected 3D printing technologies. In addition to additive technologies, the theoretical part presents an overview of composite materials and methods of composite production. Then there are four concepts that lead to 3D printing of continuous fiber reinforced composites components. The final concept is selected according to multi-criteria analysis and then designed. Designed extruder allows 3D printing of composite materials. The principle of the function consists of fiber impregnation by matrix inside the heat chamber and then deposition of composite on printing platform. The extruder also consist of fiber cutting mechanism. The extruder's ability is verified by the experiment.
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Universal muzzle device for an assault rifle
Rušar, Filip ; Majzlík, Pavel (referee) ; Vtípil, Jaroslav (advisor)
This diploma thesis deals with the design of a universal muzzle device for the assault rifle. The device is designed to produce Selective Laser Melting. The main objective is the elimination negative effects of gunshot. The paper explores possibilities of using porous structures for this type of equipment. The influence of individual types of porous structures on the flow of gases is monitored. The universal muzzle device itself is optimized using CFD analyzes. The device was made using SLM technology and experimentally verified. His impact on the impact, gun lift, noise and flame elimination was investigated.
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Application of Modern Technologies to Production of Prototype Form
Pospíšil, Josef ; Zemčík, Oskar (referee) ; Sedlák, Josef (advisor)
This Diploma Thesis deals with modern technologies such as 3D scanning, rapid prototyping and vacuum casting to production of prototype form. It considers advantages and disadvantages of the modern technologies compared to traditional process of manufacturing prototype form and economical contribution using the modern technologies. Part of the thesis considers a choice of suitable manufacturing technology of a particular product.
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Analysis of the mechanical properties of plastic parts realized by 3D printing
Krejbychová, Adéla ; Benešovský, Marek (referee) ; Vosynek, Petr (advisor)
This bachelor thesis deals with the analysis of mechanical quantities of PET-G samples which were created by using 3D printing. The problem was solved experimentally. The samples were printed by using the FDM technology (Fused Deposition Modeling). Mechanical properties were measured by the tensile test and the measured quantities were further analyzed statistically. The influence of the pigment, the material manufacturer and the effect of setting the process parameters on the actual construction of the samples were investigated. On the basis of the carried out analyses it was discovered that the samples printed horizontally in the XY plane with a 45° / -45° fill angle from Devil Design had the best mechanical properties.
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