Design and characterization of a 3D-printer-based diode laser engraver

2021 ◽  
Author(s):  
Adeel Tariq ◽  
Talha Islam ◽  
Muhammad Junaid Javed ◽  
Muhammad Hassan Sayyad
Keyword(s):  
Diode Laser ◽  
3D Printer

Characterization of a 808 nm High power Diode Laser module

2008 ◽  
Vol 4 (4) ◽  
pp. 1-10
Author(s):  
Ashraf. EL-Sherif ◽  
Mahmoud Hassan ◽  
Ayman Mokhtar ◽  
Ahmed Samy
Keyword(s):  
Diode Laser ◽  
High Power ◽  
Laser Module ◽  
Power Diode ◽  
High Power Diode Laser

Preliminary Study of Alginates Extracted from Brown Algae (Sargassum sp.) Available in Madura Island as Composite Based Hydrogel Materials

2019 ◽  
Vol 964 ◽  
pp. 240-245 ◽  
Author(s):  
Amaliya Rasyida ◽  
Thalyta Rizkha Pradipta ◽  
Sigit Tri Wicaksono ◽  
Vania Mitha Pratiwi ◽  
Yeny Widya Rakhmawati
Keyword(s):  
Sodium Alginate ◽  
Brown Algae ◽  
Extraction Process ◽  
Composition Analysis ◽  
3D Printer ◽  
X Ray Diffraction ◽  
X Ray ◽  
3D Printed ◽  
Preliminary Study

Utilization of brown algae especially in Madura, where it’s close to Surabaya, only limited for food. This become a reference for developing and increasing the potential of this algae by extracting one of the ingredients, namely alginate. This paper deals with the characterization of sodium alginate extracted from sargassum sp. using modified-purified calcium routes. The extracted sodium alginate will be further used as composite hydrogel materials and compared with commercial sodium alginate. Hereafter, the synthesized composite is expected to be bio-ink for 3d printer. Chemical composition analysis were analyzed using X-Ray Fluorosense (XRF) followed by Fourier-transform infrared spectroscopy (FTIR) analysis to identify the functional group of composite and X-Ray Diffraction (XRD). Furthermore, viscosity bath is performed to compare the viscosity of extracted and commercial one. The result shows that modified-purified calcium routes in the extraction process of sodium alginate is desirable for improving their properties. Interestingly enough, with the goal of using it as bio-ink in 3d printed fabrication, the synthesized composite shows viscosity, 300 cSt, which meets the criteria for bio-ink in 3d printer.

Investigation and Characterization of Clay Mixture Feedstock for Extrusion-Based Additive Manufacturing

2020 ◽  
Author(s):  
Tawaddod Alkindi ◽  
Mozah Alyammahi ◽  
Rahmat Agung Susantyoko
Keyword(s):  
Cost Efficiency ◽  
Ceramic Materials ◽  
3D Printer ◽  
Mixing Processes ◽  
Ceramic Components ◽  
Computer Controlled ◽  
Continuous Material ◽  
Printing Speed

Abstract The extrusion-based AM technique has been recently employed for rapid ceramic components fabrication due to scalability and cost-efficiency. This paper investigated aspects of the extrusion technique to print ceramic materials. Specifically, we assessed and developed a process recipe of the formulations (the composition of water and ethanol-based clay mixtures) and mixing processes. Different clay paste formulations were prepared by varying clay, water, ethanol ratios. The viscosity of clay paste was measured using a DV3T Viscometer. Afterward, the produced clay paste was used as a feedstock for WASP Delta 60100 3D printer for computer-controlled extrusion deposition. We evaluated the quality of the clay paste based on (i) pumpability, (ii) printability, and (iii) buildability. Pressure and flow rate were monitored to assess the pumpability. The nozzle was monitored for continuous material extrusion to assess printability. The maximum layer-without-collapse height was monitored to assess the buildability. This study correlated the mixture composition and process parameters, to the viscosity of the mixture, at the same printing speed. We found that 85 wt% clay, 5 wt% water, 10 wt% ethanol paste formulation, with the viscosity of 828000 cP, 202400 cP, 40400 cP at 1, 5, and 50 rpm, respectively, demonstrates good pumpability, as well as best printability and buildability.

Hand-held Raman sensor head for in-situ characterization of meat quality applying a microsystem 671 nm diode laser

2009 ◽  
Author(s):  
Heinar Schmidt ◽  
Kay Sowoidnich ◽  
Martin Maiwald ◽  
Bernd Sumpf ◽  
Heinz-Detlef Kronfeldt
Keyword(s):  
Diode Laser ◽  
Meat Quality ◽  
In Situ Characterization ◽  
Sensor Head ◽  
Raman Sensor

scholarly journals Characterization of particulate and gaseous pollutants emitted during operation of a desktop 3D printer

2019 ◽  
Vol 123 ◽  
pp. 476-485 ◽  
Author(s):  
Jianwei Gu ◽  
Michael Wensing ◽  
Erik Uhde ◽  
Tunga Salthammer
Keyword(s):  
Gaseous Pollutants ◽  
3D Printer
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