Development of a Material Mixing Extrusion Type Chocolate 3D Printer

2021 ◽  
Vol 38 (2) ◽  
pp. 145-151
Author(s):  
MinSoo Park ◽  
HyungJik Jeong ◽  
JaeHyuek Moon ◽  
JungMuk Lim
Keyword(s):  
3D Printer ◽  
Material Mixing

scholarly journals Feasibility of Producing Core-Shell Filaments through Fused Filament Fabrication

Polymers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 4253
Author(s):  
Alexandru Sover ◽  
Vasile Ermolai ◽  
Ashok M. Raichur ◽  
Romeo Ciobanu ◽  
Mihaela Aradoaei ◽  
...  
Keyword(s):  
Graphical Representation ◽  
Raw Material ◽  
Core Shell ◽  
3D Printer ◽  
Fused Filament Fabrication ◽  
Accessible Method ◽  
Blend Ratios ◽  
Main Effects ◽  
Material Mixing ◽  
Butadiene Styrene

Fused filament fabrication is a technology of additive manufacturing that uses molten thermoplastics for building parts. Due to the convenient shape of the raw material, a simple filament, the market offers a great variety of materials from simple to blends of compatible materials. However, finding a material with the desired properties can be difficult. Making it in-house or using a material manufacturer can be costly and time-consuming, especially when the optimum blend ratios are unknown or new design perspectives are tested. This paper presents an accessible method of producing core-shell filaments using material extrusion 3D printing. The printed filaments are characterised by a polycarbonate (PC) core and acryl butadiene styrene (ABS) shell with three material ratios. Their performance was investigated through printed samples. Additionally, the material mixing degree was studied by varying the extrusion temperature, nozzle feeding geometry, and layer thickness. The influence of all four factors was evaluated using a graphical representation of the main effects. The results showed that a core-shell filament can be processed using a 3D printer with a dual extrusion configuration and that the mechanical properties of the samples can be improved by varying the PC–ABS ratio. This research provides an accessible method for developing new hybrid filaments with a predesigned structure using a 3D printer.

Air Diverter System Prototypes for a Mobile Air Conditioner by Material Addition Method using 3D Printer

2019 ◽  
Vol 3 (1) ◽  
pp. 1-9
Author(s):  
Syed Ahmed Alisha ◽  
◽  
N Vinod Kumar Reddy ◽  
Akhil Reddy ◽  
Sampath Kumar ◽  
...  
Keyword(s):  
3D Printer ◽  
Air Conditioner ◽  
Addition Method

Results of studying the dimensional accuracy of the bases of complete removable prostheses made using 3D printing and traditional technologies

2020 ◽  
pp. 34-39
Author(s):  
Vokulova Yu.A. Vokulova ◽  
E.N. Zhulev
Keyword(s):  
3D Printing ◽  
Traditional Method ◽  
Laser Scanning ◽  
Laser Scanner ◽  
Digital Technologies ◽  
Dimensional Accuracy ◽  
3D Printer ◽  
Significance Level ◽  
Average Value ◽  
The Difference

This article presents the results of studying the dimensional accuracy of the bases of complete removable prostheses made using a 3D printer and the traditional method. Bases of complete removable prostheses were made using an intraoral laser scanner iTero Cadent (USA) and a 3D printer Asiga Max UV (Australia). To study the dimensional accuracy of the bases of complete removable prostheses, we used the DentalCAD 2.2 Valletta software. The Nonparametric Wilcoxon W-test was used for statistical analysis of the obtained data. We found that the average value of the difference with the standard for bases made using digital technologies is 0.08744±0.0484 mm. The average value of the difference with the standard for bases made by the traditional method is 0.5654±0.1611 mm. Based on these data, we concluded that the bases of complete removable prostheses made using modern digital technologies (intraoral laser scanning and 3D printer) have a higher dimensional accuracy compared to the bases of complete removable prostheses made using the traditional method with a significance level of p<0.05 (Wilcoxon's W-test=0, p=0.031). Keywords: digital technologies in dentistry, digital impressions, intraoral scanner, 3D printing, ExoCAD, complete removable dentures.

A development of 3D printer removable Hybrid hot end design

2017 ◽  
Vol 39 ◽  
pp. 167-178
Author(s):  
Doseung Chung ◽  
Kwanbae Kim ◽  
Jungsik Jang
Keyword(s):  
3D Printer

Методы топологической оптимизации в программном комплексе 3D Printer

2019 ◽  
Vol 31 (7) ◽  
pp. 75-90
Author(s):  
Денис Юрьевич Дьянов ◽  
Denis Yur'evich Dyanov ◽  
Марина Валентиновна Медведкина ◽  
Marina Valentinovna Medvedkina ◽  
Александр Николаевич Быков ◽  
...  
Keyword(s):  
3D Printer

В рамках проекта «Разработка атласа типовых форм для топологической оптимизации конструкций, формируемых методом селективного лазерного плавления, и их производственная верификация» (договор с Министерством образования и науки, шифр 2016-14-579-0009-492), участниками которого являются НИТУ «МИСиС», АО «НПО «ЦНИИТМАШ», ФГУП «РФЯЦ-ВНИИЭФ», Министерство образования и науки РФ, ОАО «Наука и инновации» (ГК «Росатом») ведется разработка программного обеспечения, позволяющего проводить топологическую оптимизацию деталей с различными ограничениями целевой функции, а также генерировать и использовать различные типы ячеистых структур для заполнения объeма деталей. В статье приведено описание методов и алгоритмов топологической оптимизации конструкций с ограничениями целевой функции по смещению и напряжению, разработанных в интересах использования в базовой версии программного обеспечения.

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