2d to 3d conversion practice drawings

With rapid change in technology, particularly in the area of Computer Aided Pattern, customers are enervating quick and accurate 3D models for their easy visualization and quick project completion fourth dimension. Further there is a rapid transformation from 2D CAD to 3D CAD solutions. This article provides an overview and basic technique available to catechumen the existing 2d CAD drawings into 3D CAD models without much loss in time and data using 3D Figurer Aided Design software'due south like Autodesk Inventor. This technique non simply allows users to convert CAD 2D drawings, only also allows conversion process with more accurateness. Further the various concepts involved in converting the 2D CAD drawings into 3D CAD Models leading to like shooting fish in a barrel conversion of STL format, which can be afterward used for concrete prototyping is a also discussed

Introduction

3D is a real object or true depiction of real image. Though we may be viewing 3D image on aeroplane newspaper or computer monitor (both apartment second), our brain compares 3D prototype with its own archive of 3D existent objects as seen by our eyes in past and hence even not so proficient 3D image provide more data to our brain than plainly 2d cartoon. Even for a layman, identification of loftier rising sky scrapper is just easy if you lot evidence him a 3D model but extremely hard if you show him Plan, Elevation and Sectional Drawings of same building. For engineer, both are good enough, because he is trained to understand 2D. Well! In simple terms, agreement 3D is part of natural process, where as you demand to get trained to understand 2D

Design engineers mostly focus on i main upshot; they include either designing or drafting or in some applications both. The primary difference betwixt 2D and 3D engineering is apparent in the corporeality of time designers spend on these tasks when they apply the respective tools. Unlike 2D drafting tools, 3D modeling technology provides life like representation of a design, from structural limerick and the way parts fit and movement together, to the performance bear upon of characteristics such equally size, thickness, and weight. When design engineers can come across the sum of the parts in 3D, they can see problems and opportunities without ever having to spend time creating documentation. Farther whatever CAD user would definitely affirm that a simple 2D drawing doesn't concenter much attention, but the third dimension tends to impress people Rather than starting a new product concept with meticulous 2nd technical drawings of elements that might non office equally planned, this applied science rapidly shows whether a blueprint idea is viable or not based on existing data. This departure amounts to business reward for companies that otherwise might have to retrace all manufacturing processes in search of an answer or build physical prototypes of products that don't function as desired.

2nd to 3D Conversion Engineering

With the emergence of 3D modeling tools, which occurred 2 decades agone, it is estimated that roughly 75% of the current CAD user base withal primarily employs 2nd drafting. Although with rapid change, the footstep of migration from second drafting to 3D modeling to have accelerated, unyielding time-to marketplace constraints offer no opportunity for manufacturers to permit users to adapt to new paradigms and convert legacy drawings into new formats without being productive at the same fourth dimension. Still some manufacturers are not only accomplishing this feat, only excelling in top-line and bottom-line measures.

All 3D CAD tools available in the market place today can easily generate a 2nd drafting view from a 3D CAD model and this further proves to be genuine true. Further this engineering is used in every day project activeness by a designer, which in plough can be straight used by a automobile operator to industry the component using whatsoever sophisticated CNC car. However the concept of converting a 2d drawing into a 3D native CAD model is quite challenging and the process of conversion looks quite complicated. Even so this process is now simplified using popular 3D modeling tools like Autodesk Inventor, Solid Edge which is a 3D CAD solution provider. Further ane needs to understand that, the concept of 2D to 3D engineering is to simplify the process of creating 3D part models from existing 2D CAD cartoon.

Farther this applied science helps design and manufacturing engineers to amend productivity to a greater extent. Typically, reconstructing a 2D geometry into 3D model involves the use of basic Extrude feature and this is hands accomplished if the projected views are aligned on orthogonal planes. Apart from features mentioned above, other features like pigsty, chamfer, and fillet are ideally created past Boolean operations which involves cut and intersect options. The algorithm that works in achieving this technology is generally based on Boolean operation. To understand this technology, the 2D to 3D conversion is carried out from AutoCAD 2008 to Autodesk Inventor 2008 developed past"AutoDesk®".

Benefits of 3D in an organization

With many companies migrating from 2D CAD to 3D solid modeling for mechanical design, Solid modeling shortens design cycles, streamlines manufacturing processes, and accelerates product introductions by improving the catamenia of production design information and communication throughout an system, too as among its suppliers and customers. For any business, this means faster time-to-market and college quality products translate into increased revenue, while reduced design costs provide larger turn a profit margins.

Some of the benefits of 3D are listed beneath

Faster product pattern (roughly around 45% faster on average)
Automatic flattening of sheet metal parts (with bend assart)
More effective communication with suppliers/customers
Visualize more 'what-if' scenarios during the design process
The ability to create renderings and animations for design proposals or reviews
More than effective internal design reviews
Generation of virtual prototypes allows non-CAD people to participate in the process
Easily incorporate tardily design changes
Test and validate designs to reduce costs from quality problems, errors, ECO's
Reduce the demand and price of concrete prototypes
Automatic Bills of Materials
Better employee morale
Increment customer confidence and loyalty
Data management to organize and manage your design data
Helps to standardize on detailing and drafting practices
Easily manufacture your designs with industry leading partner products
Automate your pattern process and increase speed and accuracy of output and response to customers
Allow non-technical personnel such as sales department (and even customers) to quote, specify and configure product whilst maintaining your pattern & applied science integrity

3D CAD and Production Development Process

Present the product development team must expect way across questions of drawing productivity when deciding on the right CAD tools to specify. second CAD engineering science has delivered all the drawing productivity improvements that are probable to get and those benefits have long ago been absorbed. 3D CAD, on the other hand, is a completely different technology, capable of delivering far more wide-ranging benefits across the whole of the engineering and collaborative engineering process. Whereas 2D CAD shortens time scales to some extent, 3D CAD goes much further, direct supporting the whole product development cycle, speeding up every activity and increasing the quality of design by
removing many sources of inaccuracy and error, the authentic 3D solid geometric model, together with all the non-geometric applied science data attached to it, becomes a complete 'digital product model' for purposes of design review, holding all the data required to analyze, procure and go far, in a form immediately usable past all engineering science processes. When centrolineal to product data direction and the Internet, 3D solid modeling provides an entire foundation for product data catamenia beyond the collaborative engineering network. A 2D drawing is an indirect and incomplete representation of an engineering production or organisation, subject to interpretation and error. Taking off data in correct form for downstream analysis, simulation and manufacturing processes requires additional effort and is discipline to mistakes. Sending drawings electronically to partners, customers and suppliers is fine, just the potential for errors and misinterpretation remain. Past dissimilarity, 3D solid modeling produces a complete and authentic geometric model of the product, analogous to a physical model. Whatever required geometric and physical information can exist derived from information technology for purposes of technology analysis, simulation and manufacture, using linked specialist applications that take go an integral part of the concurrent technology process. Given this high degree of integration it becomes feasible to iterate through several cycles of design, analysis and manufacturing simulation at an early stage in blueprint in lodge to encourage innovation while achieving the best possible product within the time bachelor. Product and engineering data management, similarly integrated, ensures that the engineering product is fully and accurately documented past the time the design is consummate

Basic 2D to 3D Conversion Methodology

Typically whatsoever 3D modeling tool that involves the conversion of 2d to 3D should piece of work in line with the to a higher place flow chart in order to create authentic and quick 3D models from existing 2D drawings. The same process is also used by Autodesk Inventor 2008, in generating 3D CAD models. However during transfer of information from 2d to 3D sufficient care should be taken to ensure smooth transition procedure. This includes exporting merely the desired geometry (lines and polylines) and retaining the layers, dimension styles, all axis lines that be in the 2d data. Further the properties like line type, line weight are also vetoed.

Further with reference to the figure 2 if all the views are oriented in a glass box, i.due east. in their corresponding position, and so the process of extrusion and Boolean functioning becomes easier. This is the basic concept of 2d to 3D conversion.

Interoperability Issues

From contempo developments, in area of CAD, interoperability is the key upshot which integrates various CAD CAM CAE tools. Further, this technology helps seamless transition of CAD data either from 2D to 3D or from 3D CAD tools to CAE tools. The geometric kernels, used in these tools are seamless, since they work on the same coding using popular programming tools similar C++, C# and VB.

Stages in conversion from 2D to 3D

Converting second files to 3D solid models tin can be expensive and tedious for large manufacturers with tens of thousands of product drawings. Simply a programming mathematics combines the series of thin slices on a logical path to course a 3D object. Every 3D object used in AutoCAD or Inventor got its base as 2D shape. Box got rectangle as base of operations shape and Cylinder got circumvolve equally a base shape. When dealing with 2d model, the third dimension is silent (zero value), as soon as third dimension assumes some value other than nix is given to accommodate the changes in 2D to 3D, model is now termed every bit 3D model. How ever, the fundamental concept is to adjust the 2d geometry onto a"glass box" making it piece of cake to convert the pattern into 3D

The cardinal concept autonomously from use of tools similar Extrude and the work period that involves in conversion from second to 3D is listed below in 4 steps leading to effective conversion technique. Further a elementary case study is taken to empathize the conversion process.

1. Establishing the base geometry (front end View)
2. Identification of projected geometry (Side and Acme View)
3. Alignment of various geometric views
4. Extrude (Boolean performance)

ane. Establishing the Base Geometry (front View)

A 2D drafting tool like AutoCAD having file extensions as *.dwg provides seamless data transition into whatsoever 3D CAD organization. Hence a drawing as shown in figure three is generated in AutoCAD 2008. Further this data is imported into Autodesk Inventor 2008 using Insert AutoCAD file choice. During this translation process, using filter technology option built in, Autodesk Inventor, data similar dimensions, various line blazon parameters, layers are filtered before they are actually imported into the 2nd to 3D module. This process leads to constructive and accurate conversion from second to 3D. In one case the views that are drawn using AutoCAD are imported into inventor, the base view is aligned forth the XY plane. However, this process can be extended to conversion of a transmission drawing into CAD drawing using the technique of raster to vector conversion. The base view generally refers to the front view in whatsoever orthographic projection.

2. Identify Projected View geometry

With a seamless data transition from a 2D CAD package to a 3D parametric CAD tool, it is essential to have a significant technique to enable quick and accurate orientation of information from various views. This process tin can generally be established by orienting various views into a box, which provides all three planes like XY – YZ – ZX, since a 3D model can be viewed from 6 different orientations. To improve understand this, consider a cube, which includes all the 4 views followed past top and lesser view. Based on the view type, the corresponding views can be selected to amend acquaintance with the front view as shown in figure 05.

three. Alignment of various geometric views

One time a the bones views are identified, that are necessary for creation of a 3D Model, the orientation and alignment bug are very important earlier the 3D model can be extruded. These alignments are generally carried out using basic translation technique which basically includes only move command to appropriate plane, since other technique cannot provide an accurate 3D model. However it is clear that when translation procedure is carried out, the unabridged view is made use to position accordingly. Figure vi provides the 3 view alignment earlier this could exist converted into a 3D model.

four. Extrude (Boolean operation)

The models, after appropriate orientation, demand to be extruded for creating the 3D model. The conversion is generally fabricated easy by selecting one view at a fourth dimension. Once the bones view is extruded, it is essential that all other views needs to be created using a combination of Extrude and Boolean operation, by accomplishing this process the concluding 3D Part model would exist ready without any errors. However the user must ensure proper use of the sketch, since, once the sketch has been utilized for extrusion or Boolean, that sketch cannot exist used once more. The process of cut and intersect is mainly used for arriving at the final model. To amend understand this technique refer figure 7.

Conversion from CAD to RP files

Any 3D modeling tool, has the capability of converting a 3D CAD model into an STL file. This conversion is again using the triangulated format technique; by and large know every bit the STL format. These formats help users to directly interface with whatsoever Rapid Prototyping machine to quickly create a 3D Model. This technique calls for quick concept to market scenario since, the process of physical prototyping is taken care in a short time. Further whatsoever changes tin always be done within considerable fourth dimension, leading to meliorate sustainability in the market. The concept of rapid prototyping reduces the manufacturing mistakes. Some manufacturing companies require a concrete prototype due to ergonomics in mind. No matter how practiced the model looks on the screen, ane can't tell how it will behave once he or she handles the model.

Determination:

Most 3D modeling systems offers features that help manage the accuracy and abyss of second to 3D conversion. However, the stages of conversion seem to be a major concerns, if the extrude and Boolean operation is not used properly. Further, Manufacturers plan to add together 3D modeling to 2D drafting instead of replacing it. This is the master reason which calls for such conversion technique. Still if these technologies tin accommodate, conversion of 2D assembly cartoon into a ready to use 3D assembly models, and then the applied science growth would exist at its peak and nigh companies would become into 3D technology, and the toll gene would drastically drop down. This will encourage even mid-sized companies to wrap up second to 3D technology and this trend would keep to grow amidst all verticals.

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Source: https://cadprofessor.wordpress.com/2009/01/30/transforming-a-2d-drawing-to-3d-cad-data/