A Command Generation Approach for Desktop Fused Filament Fabrication 3D Printers

This study develops a novel command generation paradigm for desktop fused filament fabrication 3D printers. In the conventional approach, designed artifact in CAD software is saved as an STL file, which is still a de-facto file standard in the field, and then imported into the CAM software of the corresponding 3D printer. After adjusting the printing parameters (feed rate, layer thickness, infill percentage, etc.), the G-code file is generated within the CAM software and it is transferred to the printer for the fabrication. There are various problems of this conventional design and manufacturing pipeline of 3D printers. The proposed command generation paradigm overcomes most of these drawbacks of the conventional scheme by taking advantage of the high redundancy of the motion trajectories of the printer heads. These paths are modeled with the available functions of the scheme and processed on the printer side. The main advantage is that the generated command trajectory file can easily be modified as opposed to the G-code files and be used for the fabrication of different artifacts.


Dimensional accuracy improvement of fused filament fabrication holes utilizing modified interior
Sımsek, Seyda; Yaman, Ulaş (2016-11-16)
This paper proposes an alternative approach to improve the dimensional accuracy of the holes manufactured with Fused Filament Fabrication desktop 3D printers. As opposed to the state of the art techniques, where they scale the input geometric designs according to their predictive and statistical models, the proposed method modifies the interior of the artifacts with respect to the geometric properties of them to compensate for the shrinkages of the holes. That is, the shrinkage itself is utilized to elimina...
Turbine blade shape aerodynamic design using artificial intelligence
Oksuz, Ozhan; Akmandor, Ibrahim Sinan (2005-06-09)
This paper describes a fast, efficient, robust, and automated design method used to aerodynamically optimize 3D gas turbine blade shapes implementing artificial intelligence. The design objectives are maximizing the aerodynamic efficiency and torque so as to reduce the weight and size and cost of the gas turbine engine. The procedure described here will allow a rapid, practical and low cost design that will answer the need of gas turbine industry. A 3-Dimensional steady Reynolds Averaged Navier Stokes solve...
An interactive preference based multiobjective evolutionary algorithm for the clustering problem
Demirtaş, Kerem; Özdemirel, Nur Evin; Karasakal, Esra; Department of Industrial Engineering (2011)
We propose an interactive preference-based evolutionary algorithm for the clustering problem. The problem is highly combinatorial and referred to as NP-Hard in the literature. The goal of the problem is putting similar items in the same cluster and dissimilar items into different clusters according to a certain similarity measure, while maintaining some internal objectives such as compactness, connectivity or spatial separation. However, using one of these objectives is often not sufficient to detect differ...
A modular micromachined high-density connector system for biomedical applications
Akın, Tayfun; Nikles, SA; Najafi, K (1999-04-01)
This paper presents a high-density, modular, low-profile, small, and removable connector system developed using micromachining technologies for biomedical applications. This system consists of a silicon or polyimide electrode with one end in contact with the biological tissue and its back-end supported in a titanium base (12.5 mm in diameter and 2.5 mm in height) that is fixed on the test subject. An external glass substrate (6 x 6 x 0.75 mm(3)), which supports a flexible polyimide diaphragm and CMOS buffer...
Computational Design of Optical Couplers for Bended Nanowire Transmission Lines
Tuncyurek, Yunus Emre; Karaosmanoglu, Bariscan; Ergül, Özgür Salih (2017-07-01)
We present computational analysis, optimization, and design of optical couplers that can be useful to improve the transmission along bended nanowires. After demonstrating the deteriorated energy transmission due to sharp bends, which lead to out-of-phase nanowires and diffraction, we use a rigorous simulation environment to design efficient couplers made of spherical particles. For this purpose, an optimization module based on genetic algorithms is combined with the multilevel fast multipole algorithm, lead...
Citation Formats
U. Yaman and M. Dölen, “A Command Generation Approach for Desktop Fused Filament Fabrication 3D Printers,” 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36278.