Study, design and construction of a 3D printer implemented through a delta robot

Celi, Ricardo; Sempertegui, Ana; Morocho, Derlin; Loza, David; Alulema, Darwin; Proano, Mariela

doi:10.1109/chilecon.2015.7404650

Cited by 10 publications

(6 citation statements)

References 4 publications

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“…This substitution was necessary because this printer was not designed for this kind of application. Swapping the control board allowed the adjustment of the parameters in wider intervals during the setup (Celi et al , 2016).…”

Section: Methodsmentioning

confidence: 99%

3D printing of clay paste enhanced by scrap polymer from powder bed processes

Mele

Ricciarelli

Campana

2021

RPJ

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Purpose Powder bed additive manufacturing processes are widespread due to their many technical and economic advantages. Nevertheless, the disposal of leftover powder poses a problem in terms of process sustainability. The purpose of this paper is to provide an alternative solution to recycle waste PA12 powder from HP multi jet fusion. In particular, the opportunity to use this material as a dispersion in three-dimensional (3D) printed clay is investigated. Design/methodology/approach A commercial fused deposition modelling printer was re-adapted to extrude a viscous paste composed of clay, PA12 and water. Once printed, parts were dried and then put in an oven to melt the polymer fraction. Four compositions with different PA12 concentration were studied. First, the extrudability of the paste was observed by testing different extrusion lengths. Then, the surface porosities were evaluated through microscopical observations of the manufactured parts. Finally, benchmarks with different geometries were digitalised via 3D scanning to analyse the dimensional alterations arising at each stage of the process. Findings Overall, the feasibility of the process is demonstrated. Extrusion tests revealed that the composition of the paste has a minor influence on the volumetric flow rate, exhibiting a better consistency in the case of long extrusions. The percentage of surface cavities was proportional to the polymer fraction contained in the mix. From dimensional analyses, it was possible to conclude that PA12 reduced the degree of shrinkage during the drying phase, while it increased dimensional alterations occurring in the melting phase. The results showed that the dimensional error measured on the z-axis was always higher than that of the XY plane. Practical implications The method proposed in this paper provides an alternative approach to reuse leftover powders from powder bed fusion processes via another additive manufacturing process. This offers an affordable and open-source solution to companies dealing with polymer powder bed fusion, allowing them to reduce their environmental impacts while expanding their production. Originality/value The paper presents an innovative additive manufacturing solution for powder reuse. Unlike the recycling methods in the body of literature, this solution does not require any intermediate transformation process, such as filament fabrication. Also, the cold material deposition enables the adoption of very inexpensive extrusion equipment. This preliminary study demonstrates the feasibility and the benefits of this process, paving the way for numerous future studies.

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Section: Methodsmentioning

confidence: 99%

3D printing of clay paste enhanced by scrap polymer from powder bed processes

Mele

Ricciarelli

Campana

2021

RPJ

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“…An often-cited drawback of using delta-style 3-D printers is that they are complicated and cumbersome to calibrate and the Kijenzi printer is no exception in its current form. An auto-calibrating feature is in development and there are several open source methods available [60][61][62][63][64], as this is a much needed feature with how frequently recalibration needs to occur with frequent, rough transport of the printers.…”

Section: Kijenzi 3-d Printer's Ability To Be Easily Usedmentioning

confidence: 99%

Development of a Resilient 3-D Printer for Humanitarian Crisis Response

et al. 2018

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Rapid manufacturing using 3-D printing is a potential solution to some of the most pressing issues for humanitarian logistics. In this paper, findings are reported from a study that involved development of a new type of 3-D printer. In particular, a novel 3-D printer that is designed specifically for reliable rapid manufacturing at the sites of humanitarian crises. First, required capabilities are developed with design elements of a humanitarian 3-D printer, which include, (1) fused filament fabrication, (2) open source self-replicating rapid prototyper design, (3) modular, (4) separate frame, (5) protected electronics, (6) on-board computing, (7) flexible power supply, and (8) climate control mechanisms. The technology is then disclosed with an open source license for the Kijenzi 3-D Printer. A swarm of five Kijenzi 3-D printers are evaluated for rapid part manufacturing for two months at health facilities and other community locations in both rural and urban areas throughout Kisumu County, Kenya. They were successful for their ability to function independently of infrastructure, transportability, ease of use, ability to withstand harsh environments and costs. The results are presented and conclusions are drawn about future work necessary for the Kijenzi 3-D Printer to meet the needs of rapid manufacturing in a humanitarian context. Yet, supply chain logistics for humanitarian responses are some of the most complex that exist. It is challenging to forecast both the demand (due to difficulties in knowing both the timing of a disaster and details of the population affected) and the supply, which is often fueled by donations [4]. A massive mismatch between the supplies delivered and the supplies that are needed is often inevitable both in quantity and kind [2,3,5]. As 60-80% of all aid money is spent on procurement, this mismatch represents not only costly errors but errors that can have negative long-term effects on local markets and economies [5].Rapid manufacturing using 3-D printing is a potential solution to some of these pressing issues in humanitarian logistics. This has become potentially feasible with the open source 3-D printers developed from the self-replicating rapid prototyper (RepRap) project [6][7][8]. The RepRap project has driven down costs of 3-D printing to fit resource-constrained contexts like those found in the developing world or during a crisis [9]. The potential for 3-D printers in humanitarian aid work has been able to capture the interest of practitioners in the field [10], as 3-D printing can have positive effects on nearly every step of the humanitarian supply chain [5].3-D printing can reduce time and money used in the procurement of goods [11,12] by reducing the amount of capital required for manufacturing at a given location, allowing distributed manufacturing [13][14][15] or more localized manufacturing to occur [3,10]. By manufacturing goods locally at the site of a disaster response, the only materials that need to be shipped to the site of a disaster are the raw materials needed...

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“…In conceptual development, the quality function deployment (QFD) matrix is used to transform user requirements into design parameters. In [11], the design and implementation of a prototype of a delta parallel robot-based 3D printer were described. This robot reduced the printing time without sacrificing the quality of the final product.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Analysis and Design of a Novel 5-DOF 3D Printer Robotic System

Dumlu

Mahboubkhah

Ayten

et al. 2022

ELEKTRON ELEKTROTECH

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In this study, the mathematical analysis and design of a new 3D printer with 5 degrees of freedom were carried out. Thanks to the developed system, a new concept has been brought to the multi-axis 3D printer mechanisms, and thus, it is aimed to improve the part quality in additive manufacturing (AM) processes. As a result of adding the 4th and 5th axes to the moving platform of the system, the production time of the part was accelerated. It is also possible to print more complex and curved shapes with less support. To design a system with these features, first of all, the kinematic analysis of the system was obtained using vector algebra, and the workspace of the current printer was determined by considering the system constraints in this article. By giving detailed information about the mechanical and electrical components of the designed system, the working principle of the whole system is presented. According to the findings obtained in the studies, the kinematic analyses performed for the proposed system proved to be correct and a new system was proposed especially for additive manufacturing technologies.

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Study, design and construction of a 3D printer implemented through a delta robot

Cited by 10 publications

References 4 publications

3D printing of clay paste enhanced by scrap polymer from powder bed processes

3D printing of clay paste enhanced by scrap polymer from powder bed processes

Development of a Resilient 3-D Printer for Humanitarian Crisis Response

Mathematical Analysis and Design of a Novel 5-DOF 3D Printer Robotic System

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