Helical slicing method for material extrusion-based robotic additive manufacturing

Yigit, Ismail Enes; Lazoğlu, İsmail

doi:10.1007/s40964-019-00090-w

Cited by 34 publications

(18 citation statements)

References 22 publications

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“…The modified helical slicing is based on planar slicing, which builds parts from the bottom up, removing the seam defects found in start-stop points in planar slicing. 59 Compared to authors’ previous work, which focuses on the mechanical design, analysis of the prototype’s performance and the parts it can print 14 based on the designed 3D printer’s topological structure in this research, this paper pays more attention to the original innovation of the mechanism from the aspect of type synthesis. The design process in this paper is the precondition for the analysis.…”

Section: The Prototype Preliminary Experiment and Discussionmentioning

confidence: 94%

General Function sets theory-based type synthesis of the collaborative 3D printer for planar and non-planar printing

Zhao

Guo

Han

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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3-dimension printing (3DP) or Additive Manufacturing promises rapid prototyping with 3D printers, the precondition for manufacturing complex components and surfaces. Usually, three-axis 3D printers are widely applied with planar slicing, limiting solid freeform fabrication with finite printing direction. Non-planar slicing (or curved layer slicing) has been put forward to break through the layerwise framework with infinite directions, requiring multi-axis 3D printers with more than four DOFs. However, as far as the authors know, the specific design method of 3D printers’ structure has seldom been studied for non-planar printing. Furthermore, there is no specified systematical research on the type synthesis of the 3D printer, which has two collaborative modules functioning together. One module serves as the build platform and the other as the print head attached moving platform. Hence, to obtain topological structures of the collaborative 3D printer for planar and non-planar printing, this paper investigates the type synthesis by introducing a research background at first. Then, the motion characteristics of the collaborative 3D printer are determined based on the planned paths’ geometric characteristics and motion requirements of the 3D printer. After that, General Function sets theory and the distribution principles are introduced, and the case study of 3D printers with 3T, 3T1R, and 3T2R is given. Finally, this research paper proposes a class of rotary 3D printers having 2T1R, 2T2R, and 2T3R innovatively. Furthermore, one prototype of the above case study is designed, and a preliminary experiment for planar and non-planar printing is carried out to verify the feasibility of the type synthesis’s result. In general, aiming at planar and non-planar printing, this paper presents a theory for type synthesis of collaborative 3D printers to offer a much richer set of kinematic structures than the most commonly used three Degree of Freedom printers.

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Section: The Prototype Preliminary Experiment and Discussionmentioning

confidence: 94%

General Function sets theory-based type synthesis of the collaborative 3D printer for planar and non-planar printing

Zhao

Guo

Han

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Correspondingly, two STL models obtained from CAD software have been given in Figures 5 and 6 to illustrate the ray-based slicing and its combination with helical path planning (Yigit and Lazoglu, 2019). Here, the combination of ray-based slicing and helical path planning is not the same as that of the work on helical path planning (Yigit and Lazoglu, 2019). With the aid of traditional planar slicing, the reference (Yigit and Lazoglu, 2019) applies generating direction vectors between consecutive planar slices to obtain a single helical tool path, which reduces the defects in each layer where the extrusion starts and finishes.…”

Section: Process Planning With Ray-based Slicingmentioning

confidence: 99%

An initial feasibility study into ray-based slicing for revolving thin-wall parts using a rotary 3D printer

Zhao

Zhu

et al. 2022

RPJ

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Purpose With the development of 3D printing or additive manufacturing (AM), curved layer fused deposition modeling (CLFDM) has been researched to cope with the flat layer AM inherited problems, such as stair-step error, anisotropy and the time-cost and material-cost problems from the supporting structures. As one type of CLFDM, cylindrical slicing has obtained some research attention. However, it can only deal with rotationally symmetrical parts with a circular slicing layer, limiting its application. This paper aims to propose a ray-based slicing method to increase the inter-layer strength of flat layer-based AM parts to deal with more general revolving parts. Design/methodology/approach Specifically, the detailed algorithm and implementation steps are given with several examples to enable readers to understand it better. The combination of ray-based slicing and helical path planning has been proposed to consider the nonuniform path spacing between the adjacent paths in the same curved layer. A brief introduction of the printing system is given, mainly including a 3D printer and the graphical user interface. Findings The preliminary experiments are successfully conducted to verify the feasibility and versatility of the proposed and improved slicing method for the revolving thin-wall parts based on a rotary 3D printer. Originality/value This research is early-stage work, and the authors are intended to explore the process and show the initial feasibility of ray-based slicing for revolving thin-wall parts using a rotary 3D printer. In general, this research provides a novel and feasible slicing method for multiaxis rotary 3D printers, making manufacturing revolving thin-wall and complex parts possible.

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“…Flexible design technique: The outstanding feature of the AM process is that it applies the layer by layer manufacturing method, which can create almost any complex geometry [17]. The layer by layer deposition strategy is in contrast to subtraction due to its limitation in design flexibility such as the need for fixtures, different tooling, possible collisions in the manufacture of complex geometry, and the difficulty of tool access to more profound and invisible areas [24]. Considering other conventional manufacturing processes, including forming technologies, for example, casting and forging.…”

Section: Chapter Literature Review 21 Additive Manufacturingmentioning

confidence: 99%

“…The existing computing support tools can be divided into two categories: the application of computer-aided design (CAD) software to create virtual models, and the application of 3D scanners to capture physical objects [20,24]. The first step is to generate a geometric modelling method that uses manufacturing parameters, geometry dimensions, parts' features and relationships to capture the expected geometric features of 3D object design.…”

Section: Very Little Materials Is Wasted In Manufacturing Components Through Ammentioning

confidence: 99%

WAAM process for metal block structure parts based on mixed heat input

Cui

Yuan

Commins

et al. 2021

Int J Adv Manuf Technol

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Higher penalties may apply, and higher damages may be awarded, for offences and infringements involving the conversion of material into digital or electronic form.Unless otherwise indicated, the views expressed in this thesis are those of the author and do not necessarily Unless otherwise indicated, the views expressed in this thesis are those of the author and do not necessarily represent the views of the University of Wollongong. represent the views of the University of Wollongong.

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Helical slicing method for material extrusion-based robotic additive manufacturing

Cited by 34 publications

References 22 publications

General Function sets theory-based type synthesis of the collaborative 3D printer for planar and non-planar printing

General Function sets theory-based type synthesis of the collaborative 3D printer for planar and non-planar printing

An initial feasibility study into ray-based slicing for revolving thin-wall parts using a rotary 3D printer

WAAM process for metal block structure parts based on mixed heat input

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