This document provides an overview of rapid prototyping technologies including fused deposition modeling, stereolithography, and selective laser sintering. It discusses applications in industries like automotive, aerospace, healthcare, and consumer electronics. Rapid prototyping builds objects layer by layer from CAD data and is faster than traditional prototyping methods. The document also lists sites for finding CAD models and discusses 3D printing applications and prominent companies in Nepal.
3D Printers:Electronics, Materials and High Quality Printsmhk3000
This presentation discusses the best practices when doing a 3D Print. Furthermore, it educates the user when he/she is buying a 3D Printer. It discusses Materials, Electronics and how to achieve High Quality Prints
Rapid prototyping (RP)
Definition
Rapid prototyping is a layer based automated fabrication process for making scaled 3-dimentional (3D) physical objects directly from 3D computer-aided design (CAD) data without using part depending tools.
More concisely, it is a process of building a prototype in one step.
Construction of the part or assembly is usually done using 3D printing or “additive layer manufacturing” technology.
Historical development
The first method for rapid prototyping became available in the late 1980s and was used to produce models and prototype parts.
Historical development
In today’s industry, RP exceeding the scope of prototype model creation, expands the possibility of the layered manufacturing, into the next level, where parts for real-world engineering applications are fabricated.
Historical development
Titanium powder-based 3D printing technology is reported recently with many successful stories.
For example, a 3D-printed bike has been fabricated with the Titanium powder.
Prototyping the Physical Design: Preparation, Sketch, Iterate, and Explore, Nondigital Methods, Laser Cutting, Choosing a Laser Cutter, Software, Hinges and Joints, 3D Printing, Types of 3D Printing, Software, CNC Milling, Repurposing/Recycling. Prototyping Online Components: Getting Started with an API, Mashing Up APIs, Scraping, Legalities, Writing a New API, Clockodillo, Security, Implementing the API, Using Curl to Test, Going Further, Real-Time Reactions, Polling, Comet, Other Protocols, MQ Telemetry Transport,Extensible Messaging and Presence Protocol, Constrained Application Protocol.
3D Printers:Electronics, Materials and High Quality Printsmhk3000
This presentation discusses the best practices when doing a 3D Print. Furthermore, it educates the user when he/she is buying a 3D Printer. It discusses Materials, Electronics and how to achieve High Quality Prints
Rapid prototyping (RP)
Definition
Rapid prototyping is a layer based automated fabrication process for making scaled 3-dimentional (3D) physical objects directly from 3D computer-aided design (CAD) data without using part depending tools.
More concisely, it is a process of building a prototype in one step.
Construction of the part or assembly is usually done using 3D printing or “additive layer manufacturing” technology.
Historical development
The first method for rapid prototyping became available in the late 1980s and was used to produce models and prototype parts.
Historical development
In today’s industry, RP exceeding the scope of prototype model creation, expands the possibility of the layered manufacturing, into the next level, where parts for real-world engineering applications are fabricated.
Historical development
Titanium powder-based 3D printing technology is reported recently with many successful stories.
For example, a 3D-printed bike has been fabricated with the Titanium powder.
Prototyping the Physical Design: Preparation, Sketch, Iterate, and Explore, Nondigital Methods, Laser Cutting, Choosing a Laser Cutter, Software, Hinges and Joints, 3D Printing, Types of 3D Printing, Software, CNC Milling, Repurposing/Recycling. Prototyping Online Components: Getting Started with an API, Mashing Up APIs, Scraping, Legalities, Writing a New API, Clockodillo, Security, Implementing the API, Using Curl to Test, Going Further, Real-Time Reactions, Polling, Comet, Other Protocols, MQ Telemetry Transport,Extensible Messaging and Presence Protocol, Constrained Application Protocol.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
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Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
5. Introduction
• Rapid prototyping is the name given to a host of related
technologies that are used to fabricate physical objects
directly from Computer-Aided Design (CAD) data sources.
• These methods are generally similar to each other in that they
add and bond materials in layerwise-fashion to form objects.
7. Contd…
Nowadays, there are over 30 processes, some of which are commercial, while
others are under development in research laboratories.
The parts are more and more frequently being used for functional testing or to
derive tools for pre-production testing than just prototype.
8. Why Rapid?
• Rapid prototyping isn’t necessarily very rapid and doesn’t
necessarily have to do with prototypes, either. Speed is
relative:
• The processes can take weeks to months off a design cycle,
but still may require many hours to fabricate a single
object.
• Therefore “rapid” is a relative term. Most prototypes
require from three to seventy-two hours to build,
depending on the size and complexity of the object.
• This may seem slow, but it is much faster than the weeks or
months required to make a prototype by traditional means
such as machining.
• These dramatic time savings allow manufacturers to bring
products to market faster and more cheaply .
9. Applications of Rapid Prototyping
Widely used in the
• Industrial 3D Printing
– Automotive
– Aerospace & Defense
– Healthcare
– Consumer Electronics
– Industrial
– Power & Energy
– Others
• Desktop 3D Printing
– Educational Purpose
– Fashion & Jewelry
– Objects
– Dental
– Food
– Others
• Design,
• Medical, and
• Consumer products
industries.
• Personal hobby
Although the possible
applications are virtually
limitless, nearly all fall into
one of the following
categories:
• Prototyping,
• Rapid tooling, or rapid
manufacturing.
16. Raw materials and application of different technology
Fig. Prototype tooling; rubber boot sole mold;
laser sintering
17. Fused Deposition Modeling
It uses a continuous filament of a thermoplastic
material and builds a part by heating and
extruding this thermoplastic filament through a
moving, heated extrusion print head one layer
each time
27. Stereolithography (SLA)
• Stereolithography is not only the oldest but also still the most
detailed AM process.
• Invented & 1st commercialized by 3D Systems, Rock Hill, SC, USA
• The technique builds three-dimensional models from liquid
photosensitive polymers that solidify when exposed to ultraviolet
light.
• The laser beam is directed by a galvo-type scanning device that is
controlled according to the contour of each layer.
33. Working
• Objects printed with SLS are made with powder materials, most
commonly plastics, such as nylon, which are dispersed in a thin
layer on top of the build platform inside an SLS machine.
• It uses a high power laser to sinter small parts of powdered
material aiming at specific points across a powder bed
• The laser heats the powder either to just below its boiling point
(sintering) or above its melting, which fuses the particles in the
powder together into a solid form.
• Once the initial layer is formed, the platform of the SLS machine
drops — usually by less than 0.1mm — exposing a new layer of
powder for the laser to trace and fuse together. This process
continues again and again until the entire object has been printed.
• When the object is fully formed, it is left to cool in the machine
before being removed.
43. Sites for CAD models
• MyMiniFactory
• CGTrader
• Cults
• Pinshape
• YouMagine
• 3DExport
• 3Dagogo
• GrabCAD
• Repables
• Treatstock
Fig Steel mold for blow molding. Direct metal
laser sintering
44. Prominent players in the global 3D printing market
• Stratasys, Ltd.
• Materialise
• EnvisionTec, Inc.
• 3D Systems, Inc.
• GE Additive
• Autodesk Inc.
• Made In Space
• Canon Inc.
• Voxeljet AG