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1
Kuchinska, D. A. "3D house printer." Thesis, Київський національний університет технологій та дизайну, 2018. https://er.knutd.edu.ua/handle/123456789/11390.
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Нгуєн, В'єт Нган. "3D Printer in Fashion Design." Thesis, Київський національний університет технологій та дизайну, 2017. https://er.knutd.edu.ua/handle/123456789/7363.
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Olmut, Mandy, and Mandy Olmut. "Continuously Variable Durometer 3D Printer." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/625113.
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The purpose of this project was to develop a 3D printer that can print multiple durometers, or hardness, within one printed part. This project was created by Raytheon so they could develop anti-vibration housings for their electronic components that experience vibrations during flight. Team 16077 was successful in developing a printer. To achieve the result, the hardware and software of a commercial 3D printer were modified. The entire existing extrusion system was replaced with a dual extruder system with a tubing design to be able to extrude multiple filaments (a soft and a hard filament) at once. The nozzle was replaced with a mixing nozzle so that the two filaments can create a range of durometers. The firmware of the printer had to be rewritten to accept G-Code commands to run both the extruders at once at varying ratios. A standalone graphical user interface (GUI) was developed to give the user an easy way of modifying their existing G-Code file to include the mixing ratios and commands. The results show that the printer can achieve a range of durometer from 84A to 75D Shore hardness. Furthermore, the printer was successful in printing a multi-durometer part that mitigated vibrations.
4
Бібік, В. І. "3D-принтер." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/41084.
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Němec, Radek. "3D tiskárna typu Delta." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-400691.
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This master thesis is about design and construction of FDM delta 3D printer which consists of 32-bit electronics, magnetics printer head and other necessary peripheries. Opening chapters of this thesis are about theory of 3D printing and its methods with description of FDM 3D printers and summarization of FDM plastic materials used for 3D printing. The next part is about used electronics and problematic of heat transfer. The main part of this thesis describes design and construction of 3D printer and its necessary peripheries, which includes creation of its 3D model and application for 32bit controller. 3D model of delta 3D printer and its heating components was created in CAD software SolidWorks. The last part includes description of commissioning and calibration of delta 3D printer with summarization of economic aspects of its creation.
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Busana, Tommaso. "Bamboo connections: the role of 3D printer." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
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After highlighting the extraordinary mechanical characteristics of Bamboo, the thesis will focus on an architectural project the firm (host internship company) is working on and it will provide a characterization of the connections acting in the project. The research supplies a solution based on the exponential evolution of 3D printer, 3D printing innovative materials and the use of parametrical programmes.
It claims to be an alternative way of construction that is green, cheap, fast and flexible, valid substitute either in hazards areas or in those zones where the support of avant-garde construction machinery is not always guaranteed.
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Kindblom, Mikael, Raghid Abdeljawad, and Mohammadi Sina Agha. "Construction of a Powder Bed 3D Printer." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-356422.
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This project is part of a bigger project where the goal is to be able to create smaller batches of individually designed pills with a high resolution. This could be done by using a powder bed 3D printer, which our job was to find out. This type of machine prints out a thin pattern of binder through a printer head and then sweeps powder over the pattern, making the powder stick to the binder. This process is repeated until the object is formed. The machine necessary was created from scratch using a guide provided by the Internet. The results were unfortunately uncertain. We managed to print with ink and the pattern created had a high level of accuracy but due to time limitations, we never got to print with actual binder in the cartridge.Tillverkning av individanpassade läkemedel
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Ardestam, Fredrika, and Sara Soltaniah. "Dot Master : Braille printer." Thesis, KTH, Maskinkonstruktion (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230242.
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Braille is a writing system that uses tactile dots in apredetermined order which, in relation to each other, representdifferent letters in the alphabet. This writing systemmakes it possible for people with visual impairmentsto take part of the written media. But the availability ofhome based braille printers is limited and these printers areoften expensive. The purpose of this project is to investigateif it is possible to build a home based braille printerfor a low cost using microcontrollers, and thereby making itmore accessible to people with visual impairment. In orderto achieve this, a prototype was built using an microcontrollertogether with stepper motors and a solenoid. Thesecomponents were then controlled by code through user inputand translated to required movements. Each switchcase then calls a set of functions that activates the steppersand the solenoid in the order needed to get the desiredcharacter. In the time frame given, the project resulted ina prototype able to print out the input it was given. Asfor the cost of building your own Braille printer in comparisonto buying one on the market highly depends on whatprocessing machines are accessible.Braille är ett skrivsystem som använder taktila prickari en förbestämd ordning i förhållande till varandra som representerarolika bokstäver i alfabetet. Detta skrivssystemgör det möjligt för personer med nedsatt syn att ta delav de skriftliga medierna. Men tillgången av hembaseradebraille-skrivare är begränsad och dessa skrivare är oftadyra. Syftet med detta projekt är att undersöka om detär möjligt att bygga en hembaserad braille-skrivare till enlåg kostnad med hjälp av mikrokontroller och därmed underlätta för personer med nedsatt syn. För att uppnå dettabyggdes en prototyp med en mikrokontroll tillsammansmed stegmotorer och en solenoid. För att styra dessa komponenterskrevs en kod som tar in information från vad somskrivits i Arduinos serial monitor och kopplar sedan dettatill specifika switch cases. Varje switch case anropar sedanen uppsättning funktioner som aktiverar stegmotorerna ochsolenoiden i den ordning som behövs för att få önskad bokstav.Med den givna tidsramen resulterade projektet i enprototyp som kunde skriva ut det input den var given. Vaddet gäller kostnaden för att bygga en Braille-skrivare påegen hand jämfört med att köpa en på marknaden berormycket på vilka bearbetningsmaskiner som är tillgängliga.
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Kratochvíla, Michael. "Korekce barev 3D scanneru a 3D tiskárny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-401952.
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This thesis deals with color correction of a chain that starts with the 3D Artec MHT scanner, and ends with the 3D printers (CJP – Color Jet Printing technology). In principle, it is necessary to control the color interpretation of the entire chain from the scanning of real models to the 3D print model. With color properties and their color shade, including color textures. The principle of model surface scanning using a 3D scanner is in the same principle as photo camera which scans using a conventional CMOS chip. For this reason, color palettes were scanned using the photo camera and the resulting digital data were analyzed by the Darktable software. This analysis consisted of comparing the scanned color shades of the surface with the spectrofotometer measured data. The main goal of this method was to achieve color precision in the digital data during their acquirement, adjustment and interpretation. Then the same principle was applied to the data acquired by the 3D scanner to create an ICC profile of the 3D scanner. Because the 3D printer (CJP – Color Jet Printing) uses the same principle as the 2D printer, the 2D printing device calibration principle was used again to calibrate it. There have been defined procedures that adjust the color shade to the spectrophotometrically correct shades of the resulting print on a 3D printer. Color swatches were also printed for print quality verification. It has been found that with photo camera, which was used for objective measurement in the L*a*b* coordinates of independent space, any color setting and their adjustment is very sensitive to even small imprecisions. It has been found that it is not easy to obtain accurate colors within the Detla E
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Ramstedt, Clayton D. "Modular 3D Printer System Software For Research Environments." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8688.
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The Nordin group at Brigham Young University has been focused on developing 3D printing technology for fabrication of lab-on-a-chip (microfluidic) devices since 2013. As we showed in 2015, commercial 3D printers and resins have not been developed to meet the highly specialized needs of microfluidic device fabrication. We have therefore created custom 3D printers and resins specifically designed to meet these needs. As part of this development process, ad hoc 3D printer control software has been developed. However, the software is difficult to modify and maintain to support the numerous experimental iterations of hardware used in our custom 3D printers. This highlights the need for modular yet reliable system software that is easy to use, learn, and work with to adapt to the unique challenges of a student workforce. This thesis details the design and implementation of new 3D printer system software that meets these needs. In particular, a software engineering principle-based design approach is taken that lends itself to several specific development patterns that permit easy incorporation of new hardware into a 3D printer to enable rapid evaluation of and development with such new hardware.
11
Ylander, Mikkelsen Kristoffer, and Oskar Geraldsson. "Optimization of Granulate 3D Printer : Focus on cooling." Thesis, Högskolan i Halmstad, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-39890.
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The authors, Oskar Geraldsson and Kristoffer Ylander Mikkelsen, together with Svenska Konstruktörsbyrån AB, have customized and optimized a granulate 3D printer. The main goal for the authors is to improve the cooling of the liquid ABS plastic leaving the nozzle to prevent displacement and dislocation during the printing process. Furthermore the printers current state is poor resulting in further work regarding the overall mechanics of the printer such as the power supply, electrical motors and linear guides. The authors have studied existing 3D printers and searched through scientific articlesto get inspiration and knowledge of the mechanical process of the printers aswell as the materials.
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Pavlyuk, M. O. "3D printers and printing." Thesis, Sumy State University, 2014. http://essuir.sumdu.edu.ua/handle/123456789/45447.
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What is a 3D printer? Is any fiction or real technology? 3D-printer - a device that uses the method of layering creating of a physical object in a digital 3D-model.In fact 3D printer is a device that can print any volumetric product. 3D-printing can be implemented in different ways and it uses materials.
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ARDESTAM, FREDRIKA, and SARA SOLTANIAH. "Dot Master : Braille printer." Thesis, KTH, Mekatronik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232998.
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Braille is a writing system that uses tactile dots in a predetermined order which, in relation to each other, represent different letters in the alphabet. This writing system makes it possible for people with visual impairments to take part of the written media. But the availability of home based braille printers is limited and these printers are often expensive. The purpose of this project is to investigate if it is possible to build a home based braille printer for a low cost using microcontrollers, and thereby making it more accessible to people with visual impairment. In order to achieve this, a prototype was built using an microcontroller together with stepper motors and a solenoid. These components were then controlled by code through user input and translated to required movements. Each switch case then calls a set of functions that activates the steppers and the solenoid in the order needed to get the desired character. In the time frame given, the project resulted in a prototype able to print out the input it was given. As for the cost of building your own Braille printer in comparison to buying one on the market highly depends on what processing machines are accessible.Braille är ett skrivsystem som använder taktila prickar i en förbestämd ordning i förhållande till varandra som representerar olika bokstäver i alfabetet. Detta skrivssystem gör det möjligt för personer med nedsatt syn att ta del av de skriftliga medierna. Men tillgången av hembaserade braille-skrivare är begränsad och dessa skrivare är ofta dyra. Syftet med detta projekt är att undersöka om det är möjligt att bygga en hembaserad braille-skrivare till en låg kostnad med hjälp av mikrokontroller och därmed underlätta för personer med nedsatt syn. För att uppnå detta byggdes en prototyp med en mikrokontroll tillsammans med stegmotorer och en solenoid. För att styra dessa komponenter skrevs en kod som tar in information från vad som skrivits i Arduinos serial monitor och kopplar sedan detta till specifika switch cases. Varje switch case anropar sedan en uppsättning funktioner som aktiverar stegmotorerna och solenoiden i den ordning som behövs för att få önskad bokstav. Med den givna tidsramen resulterade projektet i en prototyp som kunde skriva ut det input den var given. Vad det gäller kostnaden för att bygga en Braille-skrivare på egen hand jämfört med att köpa en på marknaden beror mycket på vilka bearbetningsmaskiner som är tillgängliga.
14
Початко, Тетяна Володимирівна, Татьяна Владимировна Початко, Tetiana Volodymyrivna Pochatko, and D. Y. Panasiuk. "3d Printer: the beginning of the future is today." Thesis, Видавництво СумДУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/13432.
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There is a device that can quickly and inexpensively transforms your design ideas or scientific data into hand-held, concrete reality. Using it you can watch appearing of some object before your eyes. All it takes is a click of a mouse; a flick of a switch and you can have almost anything, made to order. Researchers are on the edge of technical revolution. With this remarkable technology, you can quickly and inexpensively transform your design ideas or scientific data into hand-held, concrete reality.
The technical name for this box of tricks is a 3D printer.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/13432
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Khoruzhiy, B. "The 3D printed cast." Thesis, Sumy State University, 2018. http://essuir.sumdu.edu.ua/handle/123456789/66893.
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Amazing technologies are constantly developing in our modern life:
smart glasses, smart hairbrush, smart watch, driverless cars, bioabsorbable
stents and so on. And it is not going to stop in the next year.
Every day a lot of people break or twist their limbs and need a cast.
Doctors fit plaster to their hurting body part. Sometimes inflammation or
muscles atrophy happen.
16
Lan, Justin (Justin T. ). "Design and fabrication of a modular multi-material 3D printer." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/81721.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 55-56).
This thesis presents 3DP-0, a modular, multi-material 3D printer. Currently, 3D printers available on the market are typically expensive and difficult to develop. In addition, the simultaneous use of multiple materials in 3D printing has not been extensively explored. The printer presented in this thesis was developed to address these shortcomings. The printer features a low-cost high-performance design largely using commercial off-the-shelf parts. Inkjet print heads from commercial desktop printers allow the use of multiple materials within a single print. In addition, the modular and open design of the printer allows the independent and continuing development of print heads and print materials. Testing has shown the system to be capable of producing objects with fine features, including 500 [mu]m-wide cubes containing multiple materials separated within a core.
by Justin Lan.
S.M.
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Sandoval, Joseph (Joseph Alexander). "Modeling abrasive wear of a 3D printer extruder drive mechanism." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/105674.
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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016.Cataloged from PDF version of thesis.
Includes bibliographical references (page 51).
Additive manufacturing, more specifically 3D printing using fused filament fabrication (FFF), is a valuable technique; however, little has been done in developing a new mechanism for driving filament through the hot end of the 3D printer. This investigation focuses on a prototype extruder mechanism that utilizes two counter rotating motors to force filament through the nozzle. The plastic passes through the armateurs of the two motors and the oppositely-threaded shafts drive the filament while balancing each others torque. This design provides better protection against jamming of the nozzle. A bench top prototype was able to extrude filament at a rate much greater than traditional mechanisms allow, but the threads on the aluminum shafts wore down with very little use. An abrasive wear model of the extruder shafts was developed in order to determine the theoretical lifetime of the shafts given a certain material hardness. The wear rate of the shafts is proportional to the hardness of the material and the square of the velocity of the extruded filament. Based on this model as well as experiments done with various materials, it is estimated that steel shafts will have a lifetime that is 3 to 10 times longer than aluminum shafts. Still, this lifetime is still far too short for a part meant to be used 24/7. The wear on the threads of the shafts is so severe that no feasible material could survive an adequate lifetime before failure.
by Joseph Sandoval.
S.B.
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Čuma, Zdeněk. "3D FDM tiskárna s výměnnou tiskovou hlavou." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444263.
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The aim of the work is to design and manufacture a mechanism for setting up and clamping the replaceable head of a 3D FDM printer. The first part of the thesis deals with 3D printing in general, the second part describes the FDM method. Part three is devoted to the selection and construction of a suitable 3D printer, the fourth part to the actual design of the head attachment. In the fifth part, a technical and economic evaluation is carried out.
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Новіков, В., Дмитро Володимирович Лісовенко, Дмитрий Владимирович Лисовенко, and Dmytro Volodymyrovych Lisovenko. "Вивчення особливостей проектування деталей на стадії технічного, техробочого та робочого проекту за допомогою 3D-принтеру." Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/65169.
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Для створення повноцінної фізичної 3D-моделі за допомогою
адитивних технологій була вивчена CAD-програма «КОМПАС-3D». На
стадії технічного проекту за допомогою «КОМПАС-3D» розроблялись
ескізи деталі механічного приводу поршневого механізму.
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Ctibor, Jiří. "3D tiskárna." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242004.
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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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Liljare, Mattias, and Övrebö Theodore Silveira. "Utveckling av betong för 3D-skrivare." Thesis, KTH, Byggteknik och design, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259896.
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3D-printing, också känt som additiv tillverkning, är en tillverkningsmetod som har revolutionerat många branscher och har växt stort både inom industrin och för privat användning. Tekniken använder sig utav en lager-på-lager metod för att tillverka olika objekt. Med dagens teknik går det att printa ut föremål av exempelvis metall, plast, betong och ett flertal andra material. Additiv tillverkning av betong ger möjligheten att skapa nya smarta konstruktionslösningar, vilket medför stora materialbesparingar och minskat materialspill. Produktionskostnader och hastighet kan också dra nytta av metoden genom att minska arbetskraft och eliminera kostnader för tillverkning och montering av gjutformar. Den här studien bidrar till en ökad förståelse för vad som krävs för att utveckla ett fungerande betongmaterial för additiv tillverkning. För att additiv tillverkning ska kunna standardiseras, bli mer kommersiellt och få en bredare användning krävs en djupare förståelse av betongens materialegenskaper. Detta eftersom materialet skiljer sig från konventionell betong. Syftet med detta projekt är att utveckla en betongblandning anpassad för additiv tillverkning. En undersökning görs för att hitta (i) en betongblandning med lämpliga mekaniska materialegenskaper och (ii) en betongblandning som är väl anpassad till 3Dskrivare. Det viktigaste för att en betongblandning ska kunna användas för additiv tillverkning är att blandningen kan pumpas genom systemet och extraheras genom munstycket vid tillverkning samt att slutmaterialet visar bra byggbarhet. Pumpbarhet är förutsättningen för att betongen ska kunna användas i en 3D-skrivare. Betongen ska vara tillräckligt smidig för att kunna pumpas ut genom ett munstycke, men även ha en tillräckligt god inre sammanhållning för att inte deformeras efter att den har pumpats ut. Pumpbarhet påverkas till stor del av vilken sorts pumpsystem som används. Resultaten varierar beroende på vilken pump, munstycke och slang som används vid materialtesterna. Det förefaller att en generell blandning anpassad för flera olika pumpsystem är svårt att uppnå. I det här arbetet har sex olika blandningar med olika variationer testats. Detta ledde till 38 blandningar som genomgått olika tester. De blandningarna med bäst resultat efter finjusteringar var blandning 4.1 och 5.1, de visade hög kvalité för pumpbarhet och byggbarhet. Blandning 4.1 innehåller vatten, anläggningscement, starvis 3040, glenium, CERW, krossballast och glasfibrer och blandning 5.1 är likadant fast med flygaska istället för CERW.3D printing, also known as additive manufacturing, is a manufacturing method that has revolutionized many industries and has grown widely both in industry and private use. The technique means using a layer-upon-layer method to manufacture different objects. With today's technology, it is possible to print objects of, for example, metal, plastic, concrete and several other materials. Additive manufacturing of concrete structures can be used to create new smart design solutions, which means significant material savings and reduced material waste. Production costs and time reduction may also be achieved using the method due to lower labor requirements and reduced costs for manufacturing and assembling of molds. This study contributes to an increased understanding of what is required to develop a functioning concrete material for additive manufacturing. In order for additive manufacturing to be standardized, become commercial and be broadly used, a deeper understanding of the concrete properties is required. This is because the material used in 3D printing differs from conventional concrete. The purpose of this project is to develop a concrete mixture adapted for additive manufacturing. A survey is made to find (i) a concrete mixture with suitable mechanical material properties, and (ii) a concrete mixture well adapted to 3D printers. The most important thing for a concrete mix to be used for additive production is that the mixture can be pumped through the system and extracted through the nozzle during manufacture and that the final material shows good buildability. Pumpability is a prerequisite for the concrete to be used in a 3D printer. The concrete must be sufficiently flexible to be pumped out through a nozzle, but also have a sufficiently good internal cohesion so as not to deform after it has been pumped out. Pumpability is largely affected by the type of pump system used. The results vary depending on the pump, nozzle and hose used in the material tests. It seems that a general mix adapted to several different pump systems is difficult to achieve. In this work, six different mixtures with different variations have been tested. This led to 38 mixtures that underwent various tests. The mixtures with the best results after fine adjustments were mix 4.1 and 5.1, they showed high quality for pumpability and buildability. Mixture 4.1 contains water, plant cement, starvis 3040, glenium, CERW, crush ballast and glass fibers and mixture 5.1 is similarly fixed with fly ash instead of CERW.
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Peml, Luboš. "Návrh a realizace 3D tiskárny s vysokým rozlišením tisku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231524.
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This thesis deals with the design and realisation of the stereolithographic 3D printer using DLP projector. The work describes the selection of suitable components for the printer´s mechanical construction and manufacturing of this construction, the solution of printer´s electronics and creation of the printer´s host software and firmware. Recommendations based on executed experiments for the parameters´ values settings have been given here.
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Joshi, Sharmad Vinod. "Characterization of 3D printed metal oxide composite polymers." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1595511295182678.
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An, Qi. "Construction of Control system for syringe dispenser based on Printrbot 3D printer." Thesis, Mittuniversitetet, Institutionen för elektronikkonstruktion, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-38919.
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3D printers require a reliable and robust control system to provide the proper quality for printed parts. Dispenser 3D printers are widely used in various fields of scientific research. The goal of this project is to build a disperser 3D printer based on Printrbot 3D printer, design and implement the control system and software. This system was able to control the dispenser, performed the correct operation according to the instructions. The operating system was built by LabVIEW for file reading and printer control.
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Yurchenko, D. "3D bioprinting in biotechnology." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45875.
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I am sure all of us have heard about 3D printers. They can print plastic models with different shapes and structures. And today I am going to show you, how we can use them in medicine and biotechnology.
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Кулыжка, А. В. "Велосипед будущего. Изобретение или модернизация?" Thesis, Сумский государственный университет, 2015. http://essuir.sumdu.edu.ua/handle/123456789/43444.
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На первый взгляд нет ничего проще, чем ездить на велосипеде. Но мы знаем, при движении задействовано очень много физических сил. Приведем те, которые у всех на слуху, а это: сила
притяжения, сила сопротивления воздуха, сила трения. Можно привести также силы, которые возникают при маневрах, крутящий момент и т.д.
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Shinomiya, Mitsuyoshi. "Google Bespoke!" Thesis, Umeå universitet, Designhögskolan vid Umeå universitet, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-98043.
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In my master thesis, I decided to focus on process of design. Nowadays, there is huge difference between the process of software design and hardware design due to technological problem. Software design development has more flexibility than hardware design development. In addition, it can be adjustable for each user and can involve user in design process. In the future, some of technology such as 3D printer, modifiable material, and so on, will enable hardware designer to use software design process to design hardware. The process can make better relation between user and product. In this thesis, I used real user to simulate the future process. I did a lot of interview to the user and involve him to design process. I used current technology to interact with user as much as possible, for example, I used 3D scanner to scan his body data to make perfect size reference for his vehicle. In the end, I could design something unexpected in good way thanks to collaboration with the user. It was also unexpected for him, but he was satisfied with the result so much. I believe this process has a lot of potential to make better relation and story between user and product.
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Hossameldin, Abdelwahed, and O. Kravchuk. "Prosthetic hand using ARDUINO." Thesis, ХНУРЕ, 2021. https://openarchive.nure.ua/handle/document/15691.
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This paper describes the field of prosthetics has seen many accomplishments especially with the integration of technological advancements. There are different types of hand (robotic, surgical, bionic, prosthetic and static) are analyzed in terms of resistance, usage, flexibility, cost and potential. We use Servo to control the fingers by connect the fingers to servo by cord after we connect it to the finger and threading it through all the narrow holes, the opening ‘and closing ‘finger positions are marked.
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Patkhullaev, Davron, and Yonas Melake. "Multicolor 3D printing : An analysis of the characteristics of multicolor 3Dprinting." Thesis, KTH, Mekatronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296322.
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3D printing has risen in popularity due to its capabilities which enable rapid prototyping and printing structures that were impossible to produce before and partially because of technological development in recent years. Most low-cost printers, based on the fused filament fabrication process, are capable of printing a single filament at a time that limits and complicates multicolor and multi-material 3D printing. Therefore, investigating and building a multicolor 3D printer have been chosen as a degree project in order to provide an understanding for multicolor 3D printing. The project was started with an investigation of different possibilities and potential solutions. After that, a visual CAD model was created in Solid Edge, and a virtual model was constructed by using Acumen. Lastly, accumulated ideas were implemented into creating a prototype. Construction of the prototype was accomplished successfully, and several experiments were executed to determine its capabilities and limitations. The results showed that the printer has high precision in XY-plane and is less precise in Z-axis. The printer was able to print 45 different colored objects, of which only 24 were chosen as distinct colors that the human eye could distinguish. One of the main challenges with a single nozzle multicolor 3D printing compared to a single-color printing is constant heatsink clogging. Another challenge is to create a well-integrated system where hardware and software comply perfectly in a manner that desired prints are obtained.Se dokumentfil
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Kroutil, Tomáš. "Experimentální 3D tiskárna pro laserové sintrování plastů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318723.
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The diploma thesis deals with design and realization of experimental 3D printer for selective laser sintering of plastic powders. The output of the work is a device that can create the main process conditions for laser sintering. A diode laser is used in the device, which allows aluminum composite powders to be processed. The printer allows you to heat up the applied layer of powder and set-up space. The research section focuses on similar equipment, process parameters, laser technology and control system. The design section contains solution variants and a description of the chosen solution.
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Kwan, Joyce G. "Design of electronics for a high-resolution, multi-material, and modular 3D printer." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/85435.
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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2013.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 66-68).
Electronics for a high-resolution, multi-material, and modular 3D printer were designed and implemented. The driver for a piezoelectric inkjet print head can fire its nozzles with one of three droplet sizes ranging from 6 pL to 26 pL at approximately 10 kHz. The system developed for curing photopolymer materials is low-power, low-cost, and safe, using ultraviolet light-emitting diodes instead of a gas-discharge lamp. Fabrication cost is less than $10,000, but the printer's 600 DPI resolution is comparable to that of industrial 3D printers. Printed objects exhibit detailed features and a gradual transition between materials with different mechanical properties. The printer's modular design allows modification of the printer to employ different fabrication technologies.
by Joyce G. Kwan.
M. Eng.
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Hanses, Jonathan, and Morten Eriksson. "Modelling and Control of Heat Distribution in a Powder Bed Fusion 3D Printer." Thesis, Linköpings universitet, Reglerteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-159792.
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This thesis report describes how to improve the control of the temperature in a Powder Bed Fusion 3D printer. This is accomplished by first creating a model ofthe thermal system. To create a good model, both black-box and grey-box models of the system are estimated and compared. Based on the best model, different control designs are examined and the results are compared to find the control design yielding the best results. The system being modelled is a multiple input multiple output system with acomplex internal structure. The modelling can be divided into several steps. Firstly, data has to be acquired from the system. Secondly, the data is analysed and processed. Thirdly, models are estimated based on the collected data. Different model structures such as state-space, ARX, ARMAX, Output Error, Box Jenkins and grey-box models are examined and compared to each other. Finally, the different derived models are validated and it turns out the ARMAX model yields the best prediction capabilities. However, when the controllers were tested on the actual system the controllers that are based on the grey-box model yield the best results. The different control designs examined in this work are diagonal PI controllers, decoupled PI controllers, feed forward controllers, IMC controllers and statefeedback controllers. The controllers are all based on the derived models. The controllers are implemented into a code structure capable of communicating with the printers. Here, tests of the performance for the different controllers on the actual system are executed. The results show that a non-linear system can be controlled using linear controllers. However, introducing some fuzzy control elements such as limiting the controllers to only be used within small temperature intervals and using a fixed input outside this interval yield better results. From these results, the best linear controller is a diagonal PI controller tuned from a grey-box model with as many states as there are controllable areas of the powder bed. The improvement is only marginal compared to the original PI controller, reinforcing the conclusion that some non-linear strategies are needed in the controller in order to achieve significant improvements.
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Valeriano, Caio César Santos. "Emprego de simulação computacional para avaliação de objetos simuladores impressos 3D para aplicação em dosimetria clínica." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-24072017-113607/.
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O propósito de um objeto simulador é representar a alteração do campo de radiação provocada pela absorção e espalhamento em um dado tecido ou órgão de interesse. Suas características geométricas e de composição devem estar próximos o máximo possível aos valores associados ao seu análogo natural. Estruturas anatômicas podem ser transformadas em objetos virtuais 3D por técnicas de imageamento médico (p. ex. Tomografia Computadorizada) e impressas por prototipagem rápida utilizando materiais como, por exemplo, o ácido poliláctico. Sua produção para pacientes específicos requer o preenchimento de requisitos como a acurácia geométrica com a anatomia do individuo e a equivalência ao tecido, de modo que se possa realizar medidas utilizáveis, e ser insensível aos efeitos da radiação. O objetivo desse trabalho foi avaliar o comportamento de materiais impressos 3D quando expostos a feixes de fótons diversos, com ênfase para a qualidade de radiotherapia (6 MV), visando a sua aplicação na dosimetria clínica. Para isso foram usados 30 dosímetros termoluminescentes de LiF:Mg,Ti. Foi analisada também a equivalência entre o PMMA e o PLA impresso para a resposta termoluminescente de 30 dosímetros de CaSO4:Dy. As irradiações com feixes de fótons com qualidade de radioterapia foram simuladas com o uso do sistema de planejamento Eclipse™, com o Anisotropic Analytical Algorithm e o Acuros® XB Advanced Dose Calculation algorithm. Além do uso do Eclipse™ e dos testes dosimétricos, foram realizadas simulações computacionais utilizando o código MCNP5. As simulações com o código MCNP5 foram realizadas para calcular o coeficiente de atenuação de placas impressas expostas a diversas qualidades de raios X de radiodiagnóstico e para desenvolver um modelo computacional de placas impressas 3D.The purpose of a phantom is to represent the change in the radiation field caused by absorption and scattering in a given tissue or organ of interest. Its geometrical characteristics and composition should be as close as possible to the values associated with its natural analogue. Anatomical structures can be transformed into 3D virtual objects by medical imaging techniques (e.g. Computed Tomography) and printed by rapid prototyping using materials, for example, polylactic acid. Its production for specific pacients requires fulfilling requirements such as geometric accuracy with the individual\'s anatomy and tissue equivalence, so that usable measurements can be made, and be insensitive to the radiation effects. The objective of this work was to evaluate the behavior of 3D printed materials when exposed to different photon beams, with emphasis on the quality of radiotherapy (6 MV), aiming its application in clinical dosimetry. For this, 30 thermoluminescent dosimeters of LiF:Mg,Ti were used. The equivalence between the PMMA and the printed PLA for the thermoluminescent response of 30 dosimeters of CaSO4: Dy was also analyzed. The irradiations with radiotherapy photon beams were simulated using the Eclipse™ treatment planning system,with the Anisotropic Analytical Algorithm and the Acuros® XB Advanced Dose Calculation algorithm. In addition to the use of Eclipse™ and dosimetric tests, computational simulations were realized using the MCNP5 code. Simulations with the MCNP5 code were performed to calculate the attenuation coefficient of printed plates exposed to different radiodiagnosis X-rays qualities and to develop a computational model of 3D printed plates.
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Hykolli, Denis. "Jednostupňová převodovka vyrobená 3D tiskem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443218.
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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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Оприско, Т. Б. "Багатоекструдерний блок 3D-принтера для створення композитних об’єктів." Thesis, Сумський державний університет, 2015. http://essuir.sumdu.edu.ua/handle/123456789/43968.
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Експерти 3D-друку стверджують, що майбутнє саме за тривимірними технологіями. Перший 3D-принтер був створений ще 1983 року американцем Чаком Халлом. Уже в ХХІ столітті розвиток 3D-друку став досить інтенсивним та мав вражаючий результат.
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Čáslavský, František. "Zkoušky vybraných vlastností materiálů pro 3D tisk." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-400683.
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This thesis deals with 3D printing, materials used for 3D printing, testing of the materials and learning their real parameters. Goal of the thesis is comparing selected materials, executing series of mechanical test and selecting suitable material for printing high-quality plastic parts for use in automobiles, especially for reproduction of parts that are no longer made for oldtimers and for use in motorsport.
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Čada, Jiří. "Povrchové změny v závislosti na parametrech FDM tisku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-240955.
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This thesis deals with a construction of modified RepRap 3D printer Rebel II which operates with Fused Deposition Modeling technology and selection of suitable criterion for printing. It mainly focuses on the temperature of the material being printed and speed of printing for three selected materials. Materials were selected based on availability in the market and their application. An experiment, focusing on surface changes of products as well as on the look of a fibre after passing through a nozzle, was performed.
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Anderle, Peter. "Design 3D tiskárny pro technologii Contour Crafting." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400420.
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Veneziani, Glauco Rogério. "Desenvolvimento de um objeto simulador \"Canis Morphic\" utilizando impressora 3D para aplicação em dosimetria na área de radioterapia veterinária." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-05062017-144227/.
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O aumento na longevidade humana fez surgir uma série de doenças com a idade; em contrapartida o avanço da medicina possibilitou o diagnóstico precoce e o tratamento de várias doenças antes incuráveis. Esse cenário atual estendese também aos animais domésticos (cães e gatos - PETs) que dobraram sua expectativa de vida nas últimas décadas, fato que os humanos demoraram séculos para alcançar. Do mesmo modo que os humanos, esse aumento na longevidade dos animais veio acompanhado de doenças relacionadas com a idade, entre elas o câncer. Uma das terapias utilizadas atualmente no tratamento do câncer é a radioterapia, técnica que utiliza a radiação ionizante para destruir as células tumorais (volume-alvo) com mínimo prejuízo aos tecidos circunvizinhos sadios (órgãos de risco). Essa técnica exige a realização periódica de testes de controle de qualidade, incluindo a dosimetria com a utilização de objetos simuladores equivalentes ao tecido, de modo a verificar a dose de radiação recebida pelo paciente em tratamento e compará-la posteriormente com a dose de radiação calculada pelo sistema de planejamento. A rápida expansão do mercado de impressoras 3D abriu caminho para uma revolução na área da saúde. Atualmente os objetos simuladores por impressão 3D estão sendo usados em planejamentos de Radioterapia para a localização espacial e mapeamento das curvas de isodose, realizando, assim, um planejamento mais personalizado para cada campo de radiação, além da confecção de implantes dentais, customização de próteses e confecção de bólus. Diante do exposto esse trabalho projetou e desenvolveu um objeto simulador chamado de \"Canis Morphic\" utilizando uma impressora 3D e materiais tecido-equivalentes para a realização dos testes de controle de qualidade e otimização das doses na área de Radioterapia em animais (cães). Os resultados obtidos demonstraram-se promissores na área de criação de simuladores por impressão 3D, com materiais de baixo custo, para aplicação no controle de qualidade em Radioterapia veterinária.The increase in human longevity caused a number of diseases with age; in contrast the advancement of medicine made possible the early diagnosis and treatment of several previously incurable diseases. This scenario is also important for domestic animals (dogs and cats - PETs) that have doubled their life expectancy in recent decades, a fact that humans took centuries to reach. Like humans, this increase in animal longevity was accompanied by age-related diseases, including cancer. One of the therapies currently used in the treatment of cancer is radiation therapy, a technique that uses ionizing radiation to destroy tumor cells (target volume) with minimal impairment to healthy surrounding tissues (organs at risk). This technique requires periodic quality control testing, including dosimetry with the use of tissue-equivalent phantoms, in order to verify the dose of radiation received by the patient being treated and to compare it subsequently with the calculated radiation dose by the treatment planning system. The rapid expansion of the 3D printer opened the way for a health revolution. Currently the 3D impression of phantoms are being used in Radiation therapy\'s planning for the spatial location and mapping of the isodose curves, thus realizing a more personalized planning for each radiation field, besides the preparation of dental implants, customization of prostheses and build of bolus. This work aimed has designed and developed a simulator object called \"Canis Morphic\" using a 3D printer and tissue-equivalent materials to perform quality control and dose optimization tests in the area of Radiation therapy in animals (dogs). The results obtained demonstrated be promising in the area of development of phantoms by 3D printing, with materials of low cost, for application in quality control in Veterinary Radiation therapy.
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Žlebek, Michal. "Konstrukce 3D tiskárny pro materiály s vyšší pevností." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231780.
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Thesis deals with FDM 3D printing method and testing capabilities of optimum printing conditions for different materials. The aim of this work is to design and manufacture of experimental device that enables printing to investigate these conditions. A device designed in this work was named UK3DP and allows dual color object printing with maximum dimensions of the square base of 150 mm and a height of 150 mm. Before printing, the user can set almost all parameters affecting the printing process, including air temperature in heated chamber that is part of it. To verify the functionality several materials are tested, including ABS, PC and PEI. It also describes basic verification of the influence of selected parameters on the print result. Performs tensile tests confirming the influence of ambient temperature during printing on the quality of fiber connections, examines the final quality of the surface for each layer height and compares the resulting deformation of printed objects with other printers. The result of this work is a 3D printer capable of testing printing conditions for both existing and new types of materials with a range of user adjustable parameters.
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Helienek, Matúš. "Rozšíření 3D tiskárny o speciální tiskovou hlavu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-320177.
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This thesis deals with improvement of 3D-manipulator which is currently used for 3D printing. The improvement involves adding a new printer head which will be able to acquire various colors by mixing up to three materials. Furthermore, device is extended with milling as a finishing process responsible for better surface quality of printed object.
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Haraldsson, Jonathan, and Julia Nordin. "Construction of Robot for Visual Demonstration at Conferences and Fairs." Thesis, Uppsala universitet, Fasta tillståndets elektronik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-364807.
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A demonstration robot for conferences and fairs has been built from scratch. The demonstration robot is meant to create lasting impressions at the company booth at conferences or fairs. Thus, the robot needs traits that attract people to the booth and makes sure they remember that company. In this project, traits such as being able to move, do facial expressions and play audio have been developed. The robot has also been designed to draw as much attention as possible to the booth. This was achieved by building a robot that consists of a rolling sphere with a head that always remains on top. All movements are carried out from inside the sphere by four different motors. One motor moves the robot back and forth, two motors spin a flywheel to turn the robot and the last motor rotates the head. These motors are mounted at different places on an internal structure. The internal structure is connected to the sphere at two points, one on each side of the robot. At the top of the internal structure, magnets are placed. Thus, it can attach the head at the outside of the sphere by mounting magnets in the head. All movements of the robots are controlled by a hand controller, which has been made in this project. The head has a built-in display simulating two eyes. The display is driven by a Raspberry Pi. An internal speaker is built-in inside the head, connected to the Raspberry Pi. Each simulated eye consists of 64 squares that can be programmed to be in different colours, thus making it possible to express a wide range of facial expressions.Two PCBs were designed and manufactured to control the robot. One was placed inside the robot, and the other inside the hand controller. The PCBs can communicate over Bluetooth, which makes it possible to control the robot from the outside.All parts of the robot have been designed in a CAD program and subsequently 3D printed. 3D design in CAD was learned from a novice level, since there was no previous knowledge of this in the project group.In addition, a registration form has been developed that allows visitors to register at the booth. Making it easier for the company to connect with visitors after the conference or fair. The registration form is connected with the Raspberry Pi in the head of the robot via Wi-Fi. Thus, when new registrations occur, the robot can print the names of them while audio is played.
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Elander, Sofia, and Elin Bolmstad. "Byggnadsmodellers anpassning inför 3D-utskift & dess användning." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Byggnadsteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-30502.
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Syfte: Att utreda hur digitala 3D-modeller bör anpassas inför utskrift i en 3D-skrivare samt undersöka hur en sådan modell kan användas i byggprocessens olika skeden. Metod: En fallstudie genomförs med en befintlig digital 3D-modell som utgångspunkt där intervjuer och action research används som datainsamlingsmetoder. Empirin jämförs och analyseras med det teoretiska ramverket som tagits fram genom litteraturstudier. Resultat: En fysisk 3D-modell skulle kunna användas i flera skeden i byggprocessen, huvudsakligen i idéskedet, produktionsskedet och genomgående processen som ett kommunikationsverktyg och vid reklam/försäljning/presentation för ökad förstående. Inför utskrift bör alla byggnadsdelar vara solida, detaljer bör raderas beroende på skala och komponenter bör bestå av samma material. Konsekvenser: Då intervjuerna utförs med personer med varierande kunskap och erfarenhet är det viktigt att beakta det faktum att förslag på användningsområden eventuellt inte är genomförbara i praktiken då dessa är önskemål. Trots detta kan användning av fysiska 3D-modeller rekommenderas i flera av byggprocessens skeden för ökad förståelse och bättre kommunikation, vilket även styrks av det teoretiska ramverket. Gällande anpassningar av en digital modell krävs en digital 3D-model som utgångspunkt och viss vana av 3D-projektering. Begränsningar: Då denna studie är en fallstudie utförd på ett specifikt fall, kan kunskap och rekommendationer inte generaliseras statistiskt på andra typer av byggnader. Dock kan resultatet i denna studie implementeras på liknande projekt om små justeringar tillämpas. På grund av det faktum att studien är kvalitativ med ett begränsat antal respondenter finns möjlighet till ett annat resultat om utförandet skett med andra förutsättningar. Nyckelord: BIM-modell, fysisk byggnadsmodell, 3D-modell, 3D-skrivare, 3D- utskriftPurpose: To investigate how digital 3D models should be adapted to enable 3D printing for use in the construction process in its various stages. Method: A case study is conducted with an existing digital 3D-model where interviews and action research is used as a data collection method. The empirical data are compared and analyzed with the theoretical framework developed through literature studies. Findings: A physical 3D model can be used at several stages in the construction process, mainly in idea development stages, the production stage and throughout the process as a communication tool and for advertising/sales/presentation for increased understanding. Prior to printing, all parts of the building should be solid, details should be erased depending on the scale used and components should consist of the same material. Implications: Based on interviews with people with varying knowledge and experience within the subject, it is important to take into consideration the fact that the proposals on the fields of use may not be enforceable in reality since they are requests. Despite this, the use of physical 3D models can be recommended in several construction phases of the process for greater understanding and better communication, which is corroborated by the theoretical framework. Adaptions of a digital model require a digital 3D model as a prerequisite and a certain experience of 3D design. Limitations: Since this study is a case study conducted in a specific case, knowledge and recommendations cannot be generalized statistically to other types of buildings. However, with small adjustments, this study can be implemented in similar projects. Due to the fact that the study is qualitative with a limited number of interviewees, there is a possibility of a different result if the execution occurred with other conditions. Keywords: BIM model, physical building model, 3D model, 3D printer, 3D printing
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Albaiji, Naif Faleh S. "Repeatability Case Study of the 3D Printer in the School of Engineering and Applied Science Lab." TopSCHOLAR®, 2018. https://digitalcommons.wku.edu/theses/2359.
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3DP (three-dimensional printing) technologies have become more than just a tool to help companies with prototyping and designing in the pre-production stage. Some firms have already implemented 3DP technology to produce parts and end-use products. However, there are several challenges and barriers that this technology must overcome to replace traditional manufacturing methods. One of the most significant obstacles associated with 3D printing is its low level of accuracy in variable repeatability when it comes to making separate batches of the same product. There are several arguable reasons behind this variation. Some of the factors that can influence repeatability are the type of material, the design, the type of product produced, and the orientation, or the location of the build inside the building envelope. The goal of this study was to determine whether the location of the build inside the surface area of the working envelope can affect the properties (height, width, depth, and weight) of the product.
Western Kentucky University (WKU) provides students with a few 3D printers on campus. One of those printers, a Stratasys (model: BST 768/SST 768), is in the Senator Mitch McConnell Advanced Manufacturing and Robotics Laboratory. The researcher used this printer for the study to determine if the location of the printer influenced the final product. The conclusion of the research did reveal that the printing location does affect the quality of the final product.
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Knapil, Josef. "Stavba a aplikace 3D FDM tiskárny typu deltabot." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232111.
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The thesis describes design and aplication of 3D FDM printer type of delta. The first part describes methods of rapid prototyping. The second part describes 3D printers type of delta. The third part deals with construction and calibration of delta printer. In the fourth part are made suitable modifications to the design of the printer, to improve the quality of printing, which is then applied on a sample product. The final section is devoted to technical and economic evaluation.
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Tesař, Jaroslav. "Sestavení a ověření funkčnosti domácí 3D tiskárny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231417.
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This thesis was created as a bachelor project in the Faculty of Mechanical Engineering at VUT in Brno. In the theoretical part, the additive technology Rapid Prototyping is introduced together with the most common methods, followed by the assessment of advantages and disadvantages of the new technology and its possible uses in various fields of human activity. In the experimental part of the diploma thesis was assembled and the printing parameters were set. Consequently the comparison models were printed on the 3D home printer and on professional printer Dimension uPrint. The accuracy of the printers is compared. The thesis concludes with the analysis of technical and economical parameters.
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Boström, Gustav. "Social media's significance on the need recognition and information search, in B2B investment decisions of 3D printers." Thesis, KTH, Medieteknik och interaktionsdesign, MID, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-185320.
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This study examines what significance social media (Facebook, LinkedIn, Twitter and Instagram) may have in regard to clients need recognition and information search, in B2B investment decision making of desktop 3D printers. The study was made on 121 respondents from the 3D printer reseller company 3DVerkstan’s customer base. Need recognition and information search are the two first steps of five, in the consumer behavioral Engel Blackwell Miniard (EBM) model of decision making. To get a better perspective of what role social media have in B2B marketing, a broad investigation of the 3D print owners need recognition and information search has been conducted through a survey built from the EBM-model, and the clients media consumption. A wide range of communication channels has been examined in order to draw conclusions from what role social media play as whole. As social media is an unexplored field for B2B marketing, an interview with the CMO of Telia Sonera Sweden, Magnus Andersson was held to get insights of how they currently use social media in B2B as a best-in-class case. This study aims to give foundational directives for social media’s significance for B2B companies in the technology. The findings in this study indicates that social media has a great potential exposure to influence and inspire need recognition. Especially for Facebook, decent potential exposure for LinkedIn and Instagram. Not very good for Twitter. Although, almost none were first exposed to 3D printing on social media. Social media was not searched for information, and the few that did searched for reviews. The respondents primarily searched on online sources only. Most respondents conducted one search step where they focused on finding a source with compiled information to conveniently grasp the 3D printer market. Either on Youtube to look for unbiased 3D print reviews. Or through a convenient recommendation from friends and resellers of the most suitable 3D printer in relation to their objective. Technical specification, price, customer reviews, service & support and user case quality caught their attention after finding their preferred source of information retrieval. Convenient personalized packaging in review form with the above stated attributes could be used to inspire customers on social media. Directed towards the use motives; prototyping, hobby/home use or custom production.
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Ševčík, Martin. "Modelování a implementace řídicího algoritmu 3D tiskárny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-403747.
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The content of the thesis is the modeling and implementation of the CNC control algorithm. This master thesis contains the description of issues of computer-controlled machines, the research of interpolation algorithms for control CNC machines and the modeling of the selected control algorithm with motor S-curve shaped speed profiles and simulation of chosen algorithms with S-shaped speed profiles in Matlab & Simulink.
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Caselli, Lorenzo. "Progettazione di un sistema di caricamento automatico del filamento di una stampante 3D." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
Find full textAbstract:
L’attività descritta nel presente elaborato è relativa alla prima fase di sviluppo di un innovativo sistema di caricamento automatico del filamento per una stampante 3D, prodotto da un’azienda che opera nel settore.
In particolare, la progettazione meccanica qui illustrata è stata affrontata partendo dal progetto concettuale del nuovo dispositivo, per concludersi con il progetto costruttivo e il dimensionamento dei singoli componenti.
In primo luogo, è stata effettuata un’analisi funzionale del problema, analizzando sistematicamente le specifiche tecniche richieste ed i vincoli di progetto dettati dall’azienda. Scomposto il problema in tal modo, sono state proposte ed analizzate soluzioni concettuali alternative, valutandone comparativamente punti di forza e criticità. Una volta individuata la soluzione ritenuta più vantaggiosa, si sono dimensionati opportunamente i componenti commerciali (e scelti a catalogo) e progettati quelli da realizzare ad hoc (con processo di produzione in additive manufacturing, secondo le richieste dell’azienda).
L’elaborato è parte integrante di un progetto che prevede le successive fasi di prototipazione e programmazione del controller del sistema di caricamento automatico del filamento.
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Rodrigues, Carlos Daniel Ervedeira. "Big Printer 3D Delta." Master's thesis, 2018. http://hdl.handle.net/10400.26/29594.
Full textAbstract:
A impressão 3D é umas das técnicas mais disseminada na indústria nos últimos tempos, devido à sua facilidade de operação, rapidez na obtenção de resultados e ainda o baixo custo associado. No entanto, apresenta ainda lacunas quando se pretende extrapolar para a grande escala devido às limitações dos exemplares que se encontram no mercado ou até mesmo nos componentes que existem e permitem a sua construção.
Na sua maioria, a impressão 3D resulta de processos de manufatura aditiva que são aplicados a impressoras 3D Cartesianas. Este tipo de impressão apresenta limitação no que diz respeito à liberdade de movimentação dos eixos e também do seu volume e velocidade de impressão. Além deste tipo de impressoras, existe as impressoras 3D Delta que permitem responder a estas lacunas, no entanto, a sua estrutura e conceção é mais complexa.
Por forma a responder a uma lacuna na indústria, o presente trabalho de projeto desenvolveu-se sobre a extrapolação de escala de uma impressora 3D Delta comum para uma que permitisse um maior volume útil de impressão (de pelo menos, 1 m3).
Desta forma, procedeu-se ao desenho detalhado dos componentes, sendo que alguns já existiam no mercado cuja adaptação à máquina foi necessária, permitindo a sua modelação 3D em SolidWorks. Por forma, a validar a modelação, realizou-se ainda a sua simulação, permitindo que o modelo virtual estivesse finalizado para o passo seguinte – a construção. Cumprindo o objetivo proposto, a impressora 3D Delta projetada apresenta um volume de impressão de, aproximadamente, 4 m3.