DipIT01 teaching and non-teaching staff of the Herald

  DipIT01 – Personal Development Skills for Computing   3d printing  Student Id: NP03A170100Student Name: Manish KunwarB.

Sc. (Hons) Computer Science Submitted date: Submitted to: Aastha Lamsal  ACKNOWLEDGEMENTItake this opportunity to express our deepest and sincere gratitude to ourModule Leader Aastha Lamsal, for her insightful advice, motivating suggestions,invaluable guidance, help and support in successful completion of this projectand also for her constant encouragement and advice throughout this module.Iwould like to convey thanks to the teaching and non-teaching staff of the HeraldCollege for their invaluable help and support throughout the period of thismodule. I am also grateful to all my classmates for their help, encouragementand invaluable suggestions.Finally,yet more importantly, I would like to express my deep appreciation to myparents, sister and brother for their perpetual support and encouragementthroughout the Bachelor’s degree period.           Table of Contents 1. INTRODUCTION..

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1 1.1 General 1 1.2 Current scenario of the 3d printing. 2 2.BACKGROUND..

3 2.1 Elaboration with examples. 3 2.2 current scenario of the topic in Nepal 4 3.IMPLEMENTATION.. 5 3.1 Idea quality.

5 3.2 Plan of the implementation. 5 4.

CONCLUSION.. 5 4.1 summary of key findings.

5 4.2 Future escalation. 5                                                                                                                           1. INTRODUCTION1.1 General  3Dprinting is a form of additive manufacturing technology where a threedimensional object is created by laying down successive layers of material. Itis also known as rapid prototyping, is a mechanized method whereby 3D objectsare quickly made on a reasonably sized machine connected to a computercontaining blueprints for the object. The 3D printing concept of custommanufacturing is exciting to nearly everyone.

This revolutionary method forcreating 3D models with the use of inkjet technology saves time and cost byeliminating the need to design print and glue together separate model parts.Now, it can create a complete model in a single process using 3D printing. Thebasic principles include materials cartridges, flexibility of output, andtranslation of code into a visible pattern (T.Prabhu, May-June 2016) (Bhandari & Regina, April-June 2014).

` Figure1: 3D Printing Basics 1.2 Current scenario of the 3d printing 3D printing has a wide variety of uses and it has manyapplications, in manufacturing, medicine, architecture, aerospace, automotive, customart and design can also be put to some unconventional uses. In the currentscenario, People is trying to make stuff that not only the usual plastic usedto make the objects but also makes use of non-traditional and commonlyunavailable material to print objects. Scientists is taking successfully tested3D printers to print ears, skin, kidney, blood vessels and bones. Instead ontypical plastic, a gel-like substance made of cells is used. Nasa alsoimplemented on the 3D printed food bandwagon in order to feed astronauts inspace which print chocolate and desserts from a special printer calledChocedge.

 (Al-Maliki & Al-Maliki, October 2015) (Bhandari & Regina, April-June 2014) Figure 2 : 3D Printing Emerging EconomiesMarket2.BACKGROUND2.1 Elaboration with examples There is a variety of printingtechnique to create physical objects from digital designs.  The main differences between these processesare in the way layers are deposited to create parts and in the materials thatare used. Some methods melt or soften material to produce the layers, whileothers cure liquid materials using different sophisticated technologies. Eachmethod has its own advantages and drawbacks. Here aresome common technologies: Stereo lithography – (SLA): position a perforated platform just below the surfaceof a vat of liquid photo curablepolymer.

A UV (Ultra Violate) laser beam then traces the first slice of anobject on the surface of this liquid, causing a very thin layer of photopolymerto harden. The perforated platform is then lowered very slightly and anotherslice is traced out and hardened by the laser. Another slice is then created,and then another, until a complete object has been printed and can be removedfrom the vat of photopolymer, drained of excess liquid, and cured.Selective laser sintering (SLS): This builds objects by using a laser to selectively usetogether successive layers of acocktail of powdered wax, ceramic, metal, nylon or one of a range of othermaterials.Multi-jet modelling (MJM): This again builds up objects from successive layers ofpowder, with aninkjet-like print head used to spray on a binder solution that glues only therequired granulestogether.Fused deposition modelling (FDM): Here a hot thermoplastic is extruded from a Temperature-controlled print head to produce fairly robustobjects to a high degree of accuracy. A method of manufacturing known as’Additive manufacturing’ due to the fact that instead of removing material tocreate a part, the process adds material in successive patterns to create thedesired shape. 3D Printing uses software that slices the 3D model intolayers.

  Each layer is then traced ontothe build plate by the printer, once the pattern is completed, the build plateis lowered and the next layer is added on top of the previous one. Typicalmanufacturing techniques are known as ‘Subtractive Manufacturing’ because theprocess is one of removing material from a preformed block.  Processes such as Milling and Cutting aresubtractive manufacturing techniques. This type of process creates a lot of waste since; the material that iscut off generally cannot be used for anything else and is simply sent out asscrap. 3D Printing eliminates such waste since the material is placed in thelocation that it is needed only, the rest will be left out as empty space. 3D printing is widely adopted by many applications, in field of manufacturing, medical,aerospace, architecture industry, automobile industry, consumer products, foodproduction and sociocultural sectors any many more.

 Figure 3 :  3D Printed Nose and Ear 2.2 current scenario of the topic in Nepal 3D printingtechnology is still very much in its infancy in Nepal, and even RoboticAssociation of Nepal, Nepal Orthopedic Medical Hospital and local company likeZener technology are continuously learning new things and finding new uses forit. One area where 3D printers have turned outto be surprisingly useful is in the area of prosthetics. Small objects, likea centimeter square cube might take half an hour or so a segment of anartificial arm, 18 hours.

It’s fascinating to watch, and amazing to think aboutthe potential of all that can be achieved. An artificial or prosthetic limb must be perfectly customizedin order to be useful to the recipient. (Neve, 2017) Oxfam has also been using 3D printing through collaborative efforts around the world, including as a first in Nepal. After thedevastating earthquake in 2015, they have been using 3D printing to create water pipes and fittings, collaborating with Field Ready, as well as a local company helping withthe fabrication of the pieces. Field Ready has been providing disaster reliefto the area in the form of several 3D printed projects as 3D printing has been shown to help with relief efforts. (Jones, 2015) 3.IMPLEMENTATION3.

1 Idea quality 3D printing in the biomedical fieldis that of creating limbs and other body parts out of metal or other materialsto replace lost or damaged limbs. Prosthetic limbs are required in many parts of the world due to injuriessustained during war or by disease. Currently prosthetic limbs are very expensive and generally are notcustomized for the patient’s needs.  3Dprinting is being used to design and produce custom prosthetic limbs to meetthe patient’s exact requirements. By scanning the patient’s body and existingbone structure, designers and engineers are able to re-create the lost part ofthat limb.

 3.2 Plan of the implementation   4.CONCLUSION4.1 summary of key findings During my research in the last coupleof years, the term 3D printing has become more known and the technology hasreached a broader public. Still, most people haven’t even known about 3Dprinting while the technology has been in use for decades.

Especially manufacturershave long used these printers in their design process to create prototypes fortraditional manufacturing and research purposes. 4.2 Future escalationToday 3D printingcan be an innovative tool for your communication support. Your customers mightnot be used to the technology yet and will be curious to discover it. For people missingan upper-limb, lack of a prosthetic is a major disability that affects theirquality of life.

Everyday tasks such as tying shoelaces, eating with a knifeand fork, or using a zipper, are difficult for amputees. Missing limbs can leadto social exclusion, and difficulty in gaining meaningful employment.


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