scholarly journals Research and Development of Laser Engraving and Material Cutting Machine from 3D Printer

2020 ◽  
Vol 28 (1) ◽  
pp. 47-52
Author(s):  
Antonin Durna ◽  
Jiri Fries ◽  
Leopold Hrabovsky ◽  
Ales Sliva ◽  
Jozef Zarnovsky
Keyword(s):  
Laser Diode ◽  
3D Printer ◽  
Control Board ◽  
Cnc Machine ◽  
Laser Engraving ◽  
Print Head ◽  
Compact Size ◽  
Useful Power ◽  
Graphic Elements ◽  
Material Cutting

AbstractThis article deals with the adjustment of a 3D printer for laser engraving and material cutting. The print head can be fitted with a solid laser diode module, which achieves a compact size while retaining its useful power. Two paths lead to the use of such a concept. It is possible to equip the existing print head with a module, which also brings a number of disadvantages such as, for example, the reduction of the printing space or the need for a suitable mounting design. A more elegant solution is to consider this in the design of a 3D printer and design a system to exchange the print heads for 3D printing and laser engraving. Such a solution allows full utilization of the workspace and simple installation of the effector for the required type of work. According to the installed power of the laser diode, it is possible not only to engrave but also cut material such as thin wood, veneer or acrylic glass. The use of such a machine is not only for graphic elements but for the creation of various stencils, boxes or simple models, which can be made up of plastic-burning pieces. The laser module is controlled by a driver, which is designed for the device. This is connected to a 3D printer control board. It is, therefore, necessary for the control board to have at least two pins, which can be controlled after adjusting the control firmware. Most laser modules are normally equipped with an adjustable lens, which is used to concentrate the focus of a laser for the given distance against the worktop. Thus, the modified 3D printer can perform its function as a multi-purpose CNC machine, while a basic platform similar for both devices is used.

Etched Fiber Bragg Grating Probe using a Regular CNC Machine and a 3D Printer

2021 ◽  
Author(s):  
Vicente Oliveira ◽  
Alexander Cascardo ◽  
Alexandre Santos ◽  
Andres Barbero ◽  
Fernando Peixoto ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
3D Printer ◽  
Cnc Machine

Implementing 3D Printer to Produce Parts in Medical Applications

2017 ◽  
Vol 6 (3) ◽  
pp. 188
Author(s):  
Roger Johnson ◽  
Charles Taylor ◽  
G. H. Massiha
Keyword(s):  
Industrial Applications ◽  
The Other ◽  
Medical Applications ◽  
Full Potential ◽  
3D Printer ◽  
Cnc Machine

<p class="Abstract">The purpose of this project is to show the ability of a 3D printer to produce temporary parts, molds, and jigs for industrial applications. In the industry, it is common for any replacement parts to be milled by a CNC machine or a large inventory of replacement parts to be kept on standby.  This represents an underutilization of company capital.  This is because there should either be a CNC machine delegated to remake the part, while the other machine is down, or have capital dumped into parts that will not be utilized until a part breaks.  A 3D printer can create a temporary part that can take the place of the broken one until another, more permanent, one can be produced or ordered.  Although, if this was the only thing it would be used for it also would be underutilized and not bringing out its full potential.  It can also make jigs in a fraction of the time, and cost in materials, it would take for a CNC machine to mill it from metal.  This increases flexibility of the 3D printer and does not leave it underutilized, thus not being capital that is underutilized.</p>

Development of Multi-Channel Laser Diode Control Board for Photo lithography Equipment

2019 ◽  
Vol 68P (4) ◽  
pp. 231-236
Author(s):  
Dae-Jong Lee ◽  
Hwan-Yong Choi ◽  
Jae-Yoon Lim ◽  
Pyeong-Shik Ji
Keyword(s):  
Laser Diode ◽  
Control Board

ORGANIZATION OF QUEST FOR FAMILIARIZATION OF STUDENTS WITH INNOVATIVE EQUIPMENT

2019 ◽  
pp. 13-17
Author(s):  
S. S. Khapaeva ◽  
R. A. Ganin ◽  
O. A. Pyshkina ◽  
K. A. Suntsov
Keyword(s):  
Project Work ◽  
3D Printer ◽  
Laser Engraving ◽  
Additional Education

The article presents the results of the project work of the team of authors to create a quest for technology/informatics. During the quest students, engaging in interaction and playing, get acquainted with innovative equipment. This is a consecutive (linear) quest: after completing one task, the students receive the next one, and so on until they have completed all the tasks. Doing the tasks students get acquainted with the 3D printer, laser engraving machine, robot, QR coding technology and other technologies and equipment. The principles and features of the development of quests are described in the article. Methods of organizing the quest and the developed programs and resources will be interesting and useful to teachers of informatics and technology, methodologists, specialists of additional education.

scholarly journals Design of a Fused Filament Fabrication (FFF) 3D-printer

2021 ◽  
Vol 40 (2) ◽  
pp. 252-260
Author(s):  
A.O. Oluwajobi ◽  
F.O. Kolawole
Keyword(s):  
Fem Analysis ◽  
Acrylonitrile Butadiene Styrene ◽  
Galvanized Steel ◽  
Total Power ◽  
3D Printer ◽  
The Finite Element Method ◽  
Control Board ◽  
Fused Filament Fabrication ◽  
Precision Machines ◽  
Butadiene Styrene

A Fused Filament Fabrication (FFF) 3D-printer was designed, for fabrication by using in part locally sourced materials. The printer design was based on the Replicating Rapid Prototyper (RepRap) open source. The print volume of the printer is 200mm × 200mm × 300mm and it uses the Melzi V2 printer control board, coupled with the Repetier-Host firmware. The designed 3D-printer consists of galvanized steel frame, stainless steel threaded rods and wooded supports. The Finite Element Method (FEM) analysis was carried out on critical supporting components. The results obtained for the stresses are below the yield strength of the materials and the displacements are within acceptable limits, for high precision machines. The total power required by the 3D-printer was evaluated to be 197.93 W and it utilizes two thermoplastic materials namely; the Polylactic Acid (PLA) and the Acrylonitrile Butadiene Styrene (ABS).

scholarly journals Optimization of 3D printing parameters with sodium alginate hydrogel

2019 ◽  
Vol 64 (1) ◽  
pp. 7-13
Author(s):  
Ye. M. Dovydenko ◽  
V. Y. Agabekov ◽  
S. A. Chizhik
Keyword(s):  
3D Printing ◽  
Sodium Alginate ◽  
Movement Speed ◽  
3D Printer ◽  
Alginate Hydrogel ◽  
Standard Material ◽  
Print Head ◽  
Movement Rates ◽  
Living Tissues ◽  
Optimal Movement

In order to obtain biologically compatible objects with mechanical properties close to living tissues, 3D printing with biocompatible sodium alginate hydrogel at room temperature on the modified desktop 3D printer Up! Mini (manufactured by PP3DP, China) was carried out. The standard print head was replaced with a special syringe-extruder to allow the extrusion of a hydrogel, the details of which were made by 3D printing from ABS plastic. Of the parameters, the standard material feed and print head movement rates were changed. For accurate reproduction of object sizes using 3D printing from this hydrogel the next parameters were established: the optimal concentration of sodium alginate in extruded hydrogel (2.5 wt.%); the composition of the “support” gelatin suspension, which was fixed on the printing table of a 3D printer and served as volumetric support for hydrogel (10 g of calcium chloride CaCl2 and 13.5 g of gelatin per 500 ml of distilled water). The method of its preparation includes 1 minute mixing of components blend, dispersion at 9000 rpm on IKA ULTRA-TURRAX T 25 digital disperser, 4 hours settling at 4 °C, 3 minutes centrifuging at 5500 rpm, removal of the supernatant. The optimal movement speed of the print head during 3D printing and the speed of extrusion of the hydrogel during the formation of the external perimeter of the printing object are 9–11 and 5 mm/s, respectively, as well as the speed of material extrusion during the formation of the internal filling of the model is 0.83 mm/s.

Simple, Fast, and Low Cost Fabrication Methods of Microchannels for Manipulation of Living Cells

2013 ◽  
Author(s):  
Anas Alazzam ◽  
Bashar El-Khasawneh ◽  
Mohammad Abutayeh
Keyword(s):  
Microfluidic Device ◽  
Glass Substrate ◽  
Low Cost ◽  
Living Cells ◽  
Numerical Control ◽  
Adhesive Tape ◽  
3D Printer ◽  
Cnc Machine ◽  
Advantages And Disadvantages ◽  
The Third

This work details simple non-cleanroom fabrication techniques to build hermetic microchannels using laboratory available material and equipment. Four different methods are presented for fast fabrication of microchannels at low cost. The microchannels are to be used for the manipulation of living cells. These methods of fabrication of microfluidics devices have previously been used and documented as reactors, fluid mixer, and for fluids transportation and inspection. In this work, all methods were used for manipulation of living cells. Each method, its advantages and disadvantages for this particular application are reported. The microfluidic device built using the first method includes a polymer-based part and a glass substrate with a layer of patterned electrodes. The Polymer-based microchannel is made outside the cleanroom facility using a simple mold made from adhesive tape. Moreover, the fabrication of a non-polymer microchannel made from double-sided tape is described. The microchannel height is about 50 μm while the width varies between 100 μm to a few hundred microns. The third method of fabrication is made by a 3D printer. The master molds for the polymer-based microfluidic device are fabricated by 3D printing of biocompatible material on glass substrate. The fourth method is a simple embossing of a male die in plastic or polymer substrate. A computer numerical control (CNC) machine was used to fabricate the embossing mold in stainless steel, brass, and aluminum. Microchannels were created by stamping the mold in a Cyclic Olefin Copolymer (COC) substrate.

scholarly journals A Low-Cost Electrochemical Metal 3D Printer Based on a Microfluidic System for Printing Mesoscale Objects

Crystals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 257 ◽  
Author(s):  
Pengpeng Liu ◽  
Yawen Guo ◽  
Yihong Wu ◽  
Junyan Chen ◽  
Yabin Yang
Keyword(s):  
Additive Manufacturing ◽  
Low Cost ◽  
Scale Up ◽  
Microfluidic System ◽  
3D Printer ◽  
Feed System ◽  
Free Standing ◽  
Printing Process ◽  
Print Head ◽  
Comb Structure

For the additive manufacturing (AM) of metal objects, the powder-based fusion (PBF) method is routinely utilized to fabricate macroscale parts. On the other hand, electrochemical additive manufacturing (ECAM), in which metallic structures are deposited through the electrochemical reduction of metal ions, is a promising technique for producing micro- and nanoscale objects. However, a gap exists in terms of fabricating mesoscale objects within the current AM techniques. The PBF method is limited by fabrication precision due to pronounced residual stresses, and most current ECAM systems are difficult to scale up to print mesoscale objects. In the present paper, the novel design of a low-cost ECAM 3D printer based on a microfluidic system is proposed for fabricating mesoscale metal parts. The meniscus-guided electrodeposition approach is utilized, in which a meniscus is formed between the print head and substrate, and electrodeposition is confined within the meniscus. A 3D object is fabricated by the meniscus moving with the print head according to the programmed pattern and the material subsequently being deposited at the designated locations. The key to the proposed design is to maintain a mesoscale meniscus, which normally cannot be sustained by the electrolyte surface tension with a print nozzle having a mesoscale diameter. Therefore, a microfluidic system, called the fountain pen feed system, constituting a semi-open main channel and comb structure, was designed to maintain a mesoscale meniscus throughout the printing process. Two materials, copper and nickel, with various geometric shapes were attempted to print by the proposed ECAM system, and, during the printing process, both fluid leaking and meniscus breaking were completely prevented. Free standing tilted copper pillars with controlled angles were printed to show the ability of the proposed design in fabricating 3D structures. A copper circuit was also printed on a non-conductive substrate to demonstrate a possible application of the proposed ECAM system in the fabrication of functional electronics.

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