Comparison of Selected Thermoplastic Materials in the Fused Deposition Modeling Process and their Influence on the Dimensional Accuracy of an Orthodontic Upper Teeth Model

2019 ◽  
Vol 952 ◽  
pp. 143-152
Author(s):  
Jan Milde ◽  
František Jurina
Keyword(s):  
Fused Deposition Modeling ◽  
Three Dimensional ◽  
Dimensional Accuracy ◽  
Digital Model ◽  
3D Printer ◽  
3D Scanner ◽  
Manufacturing Method ◽  
Fused Deposition ◽  
Modeling Process ◽  
Deposition Modeling

The article focuses on the research of selected thermoplastic materials processed by the Fused Deposition Modeling (FDM) additive manufacturing method and dimensional accuracy of parts in particular. The selected thermoplastic materials were ABS, PLA and HIPS. The digital model of the object (upper teeth) was obtained by the intraoral 3D scanner of 3Shape TRIOS used in dentistry. Based on the 3D (Three Dimensional) scanned digital model, the manufacturing of the upper teeth was performed on the Zortrax M200 FDM 3D printer. Parameters of the manufactured parts were as follows: Layer thickness 0.09 mm, infill 20% and model orientation 0°. The manufactured parts were digitized by the GOM ATOS Triple Scan optical 3D scanner with the measuring volume of MV 170. The dimensional accuracy of the parts was evaluated in the GOM Inspect software.

scholarly journals Typography-Like 3D-Printed Templates for the Lithography-Free Fabrication of Microfluidic Chips

2019 ◽  
Vol 25 (1) ◽  
pp. 82-87
Author(s):  
Wenqiong Su ◽  
Yulong Li ◽  
Lulu Zhang ◽  
Jiahui Sun ◽  
Shuopeng Liu ◽  
...  
Keyword(s):  
Processing Time ◽  
Fused Deposition Modeling ◽  
Three Dimensional ◽  
Cost Effective ◽  
Microfluidic Channels ◽  
3D Printer ◽  
Microfluidic Chips ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
3D Printed

Typography-like templates for polydimethylsiloxane (PDMS) microfluidic chips using a fused deposition modeling (FDM) three-dimensional (3D) printer are presented. This rapid and fast proposed scheme did not require complicated photolithographic fabrication facilities and could deliver resolutions of ~100 μm. Polylactic acid (PLA) was adopted as the material to generate the 3D-printed units, which were then carefully assembled on a glass substrate using a heat-melt-curd strategy. This craft of bonding offers a cost-effective way to design and modify the templates of microfluidic channels, thus reducing the processing time of microfluidic chips. Finally, a flexible microfluidic chip to be employed for cell-based drug screening was developed based on the modularized 3D-printed templates. The lithography-free, typography-like, 3D-printed templates create a modularized fabrication process and promote the prevalence of integrated microfluidic systems with minimal requirements and improved efficiency.

scholarly journals PENENTUAN SETTING OPTIMAL MESIN 3D PRINTER BERBASIS FUSED DEPOSITION MODELING MENGGUNAKAN METODE TAGUCHI

2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Anggit Prakasa ◽  
Setya Permana Sutisna ◽  
Anton Royanto Ahmad
Keyword(s):  
Experimental Design ◽  
Taguchi Method ◽  
Fused Deposition Modeling ◽  
Dimensional Accuracy ◽  
High Accuracy ◽  
3D Printer ◽  
Fused Deposition ◽  
3D Printers ◽  
Optimal Setting ◽  
Deposition Modeling

<p>The 3D printers process is applied to create prototype components, but at the last 3D Printers are often applied as last products. So, high accuracy is required in this case. In this research will find the optimal<br />setting of the dimensional accuracy 3D printers based fused deposition modeling. The method used is<br />the Taguchi method, the reason for using this method its efficiency, this is because the Orthogonal<br />Array matrix requires less number of experiments than the classical experimental design. Analysis of<br />Variance is also needed in this method to see the factors that significantly influence the response<br />variable. The results of this study indicate that the factors that significantly influence is printspeed by<br />contributing 53.08%, flowrate contributes 16.4%, and temperature heater block contributes 3.85% and<br />optimal setting is temperature heater block 190º, print speed 60mm/s and flowrate 6.28 mm3/s. (A1,<br />C3 dan D2).</p>

Observation of Shape and Dimensional Accuracy Changing of Parts in Time Intervals Manufactured by Additive Method Fused Deposition Modeling

2018 ◽  
Vol 919 ◽  
pp. 182-189
Author(s):  
Ivan Molnár ◽  
Róbert Hrušecký ◽  
Ladislav Morovič ◽  
Augustín Görög
Keyword(s):  
Fused Deposition Modeling ◽  
Coordinate Measuring Machine ◽  
Dimensional Accuracy ◽  
Medical Applications ◽  
Cad Model ◽  
Time Intervals ◽  
Manufacturing Method ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
Measuring Machine

This article deals with the observation of shape and dimensional accuracy of parts after manufacturing in certain time intervals. The parts was manufactured by additive manufacturing method Fused Deposition Modeling (FDM). The shape and chosen dimension changes due to material shrinkage was observed on materials, namely Polylactic Acid (PLA) and Polyethylene Terephthalate Glycol (PET-G). These materials rank among health-conscious and usable in some medical applications. The parts were measured by using coordinate measuring machine (CMM) in certain time intervals and the shape and chosen dimensions was compared with the reference computer aided designed (CAD) model.

Dimensional Accuracy Evaluation of Rapid Prototyping Fused Deposition Modeling Process of FDM200mc Machine on Basic Engineering Profiles

2013 ◽  
Vol 465-466 ◽  
pp. 96-100 ◽  
Author(s):  
Zulkarnain Abdul Latiff ◽  
M.R.A. Rahman ◽  
F. Saad
Keyword(s):  
Fused Deposition Modeling ◽  
Dimensional Accuracy ◽  
Accuracy Evaluation ◽  
Low Density ◽  
Varying Parameters ◽  
Fused Deposition ◽  
Modeling Process ◽  
Deposition Modeling ◽  
Optimum Type ◽  
Two Parameters

The purpose of this research is to study the accuracy of RP FDM Process. This research involves varying two parameters in building up the prototype which is the buildup angle and the sparse for each layer (volume of parts). The varying parameters were used in the FDM process for three types of specimen (profiles) which is the Cube, Cylinder and Pyramid. The varying parameters are the build up angle of 300, 650 and 900 and for the types of sparse, there are three types of sparse used which is Low Density (LD), High Density (HD) and Solid Type. The results of the dimensional accuracy are analyzed by calculating the percentage of difference of the dimensional measurement for the specimen and the actual dimension of it. The lesser difference, the better the dimensional accuracy. The conclusion of this study is the less complicated specimen shape for the FDM process, the more accurate of the dimensional accuracy with the optimum build up angle of 300 or less and the optimum type of sparse of Low Density Type (LD).

Development of Four-Axis 3D Printer with Fused Deposition Modeling Technology

2017 ◽  
Vol 11 (2) ◽  
pp. 278-286 ◽  
Author(s):  
Kyosuke Kawagishi ◽  
◽  
Shoma Umetani ◽  
Ken Tanaka ◽  
Eiji Ametani ◽  
...  
Keyword(s):  
Machine Tool ◽  
Degrees Of Freedom ◽  
Fused Deposition Modeling ◽  
Three Dimensional ◽  
3D Printer ◽  
Modeling Technology ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
Complex Features ◽  
Five Axis

A new four-axis 3D printer using fused-deposition modeling (FDM) technology has been developed. The hardware components, consisting of a mechanical structure and servo-control system, and an original computer-aided machining (CAM) system were developed. Three-dimensional printers, particularly those using FDM technology, have gained popularity even in hobby use for the easy modeling of special and original parts. Three-axis control systems using stepping motors or servomotors are generally used for the development of conventional 3D printers. The nozzle portion is therefore constrained in one direction. This leads to limitations in modeling 3D shapes. Adding degrees of freedom is necessary to create more complex features. We designed a new 3D printer with multi-axis control to address this problem. Our final goal is the development of a five-axis 3D printer. We started with a four-Axis 3D printer as a first step. The number of lamination directions is increased from three to four. As conventional CAM systems cannot be used to program the desired lamination for a four-axis 3D printer, a new CAM system using the Kodatuno kernel was developed. The system can determine the nozzle orientation based on the machine tool formulation. This paper reports the developmental background and an overview of the developed machine tool as well as its characteristics, its evaluation results, and our future plans.

scholarly journals Studying the Defects and Geometric Anomalies on Monolayer Parts Obtained via the Fused Deposition Modeling Process

Proceedings ◽  
2020 ◽  
Vol 69 (1) ◽  
pp. 40
Author(s):  
Matheus Godoy Fonseca do Carmo ◽  
Thiago Glissoi Lopes ◽  
Verena Soares Bombonatti ◽  
Paulo Roberto Aguiar ◽  
Thiago Valle França
Keyword(s):  
3D Printing ◽  
Fused Deposition Modeling ◽  
Three Dimensional ◽  
Dimensional Accuracy ◽  
Mechanical Resistance ◽  
Three Dimensional Model ◽  
Fused Deposition ◽  
Bed Temperature ◽  
Deposition Modeling ◽  
Low Dimensional

The fused deposition modeling (FDM) process, commonly known as three-dimensional (3D) printing, deals with the manufacturing of parts by the subsequent addition of layers of fused plastic filament. The parts obtained during this process can be used for domestic applications, rapid prototyping, or final applications. During the preparation of the printing model (slicing), different process parameters must be defined, such as extruder speed, extruder height in relation to the bed, and bed temperature. Parameters that, if incorrectly defined, can lead to a series of deficiencies in the parts, such as low dimensional accuracy, low surface quality, reduced mechanical resistance, and, eventually, the occurrence of several printing defects in the parts, impairing or even preventing its use. The 3D printing process has a critical period at its beginning during the manufacturing of the piece’s first layer. The present work aims to study some of the geometric anomalies observed in monolayer pieces when some of the printing parameters are improperly defined. Printing tests on monolayer parts were carried out with a polylactic acid (PLA) filament. Herein, a home grade 3D printer, model Graber i3, was used. The height of the extruder to the bed was altered in relation to the recommended value, and three pieces were printed for each height used. The printed parts were scanned with a 1200 × 1200 dpi resolution, using a DCP-L2540DW model scanner. The images obtained were then analyzed using the Matlab® software and the geometric characteristics of the pieces were compared. The study is a first step towards a better understanding of the geometric defects obtained when an incorrect definition of basic parameters occurs when processing the three-dimensional model.

scholarly journals SISTEM KONTROL MESIN FUSED DEPOSITION MODELLING

POROS ◽  
2017 ◽  
Vol 14 (2) ◽  
pp. 107
Author(s):  
Cristian Awi ◽  
Gatot Soeharsono ◽  
Didi Widya Utama
Keyword(s):  
Control System ◽  
Fused Deposition Modeling ◽  
Three Dimensional ◽  
Fused Deposition Modelling ◽  
Three Dimensional Printing ◽  
Engine Control System ◽  
Fused Deposition ◽  
Modeling Process ◽  
Deposition Modeling ◽  
Dimensional Printing

Abstract: Fused deposition modeling is a rapid prototyping process that is very popular. Fused deposition modeling is actually one method of Three -dimensional printing. Fused deposition modeling process , namely by heating the thermoplastic material and then do the printing . Our focus is to learn, the engine control system fused deposition modeling with software arduino 1.6.8 with firmware marlin and other software 3d printer. experimental control system is done by testing the direction of motion and measuring the distance and then test the form . Making fused deposition modeling is intended as a prototype in order to understand the control system and how to innovate in the development of fused deposition modeling. The results of the control system in the form of a fused depositon modeling engine capable of running as expected and can create a physical model. 

scholarly journals Performance assessment of fused deposition modeling process

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Abdulrahman Al-Ahmari ◽  
◽  
Syed Hammad Mian ◽  
Wadea Ameen ◽  
◽  
...  
Keyword(s):  
Fused Deposition Modeling ◽  
Machine Design ◽  
Material Strength ◽  
Manufacturing Method ◽  
Geometrical Accuracy ◽  
Fused Deposition ◽  
Modeling Process ◽  
The Poor ◽  
Causes Of Errors ◽  
Deposition Modeling

Fused deposition modeling (FDM) is an additive manufacturing method that offers numerous benefits in terms of simplicity, ease of operation, material strength, flexibility, etc. However, its fabricated parts have frequently been affected by poor dimensional and geometrical accuracy. It is, therefore, extremely crucial to examine the numerous causes of errors in FDM so that appropriate steps can be taken to address its limitations. In this work, an attempt has been made to quantify the various sources of errors that contribute to the poor accuracy of FDM fabricated parts. For this reason, a standard part (also referred to as benchmark part), which is comprised of various shapes, features, and geometries, was used for the evaluation of the FDM process. The predominant goal of this research was to characterize the FDM process in terms of dimensions and geometrical accuracy. Although this research was specific to a particular machine, it provided useful information regarding the procedure that can be employed whenever a benchmark part will be utilized. This work can also act as a foundation to further improvement to the FDM machine design and expansion of its applications.

Sign in / Sign up

Export Citation Format

Share Document