Conventional methods of drafting are no longer effective in the creation of complex and richly detailed mechanical drawings. Any discrepancy in the drawing can take its toll on your process or structural efficiency while causing invested time and money to go down the drain. Traditional drafts often are characterized by design anomalies which become apparent during the process of manufacturing. Consequently, the design has to be drafted again for addressing the loopholes and manufacturing has to be recommissioned. The wastage of capital and time can just be imagined. However, with 3D CAD models, you can achieve realistic and cost-competitive cutting-edge designs whose appropriateness matches your expectations. Digital processing also curbs costs and additional drafts are no longer needed.
Prime Benefits of 3D CAD Designs from Mechanical Engineering Perspective
The advantages that your organization can reap by embracing 3D CAD modeling for mechanical engineering design related requirements are umpteen. The top few are being elaborated to offer you insights into the immense potential of 3D CAD modeling.
Design Quality Is Improved
The usual deformities and design deviations that characterize manual drafting are eliminated conclusively which contribute to remarkable improvement in design quality. The software used in 3D modeling for product design comes loaded with a rich library containing more than 0.7 million pre-formatted mechanical engineering related templates. All standard components are available in these templates which allow designers to choose the most relevant template for executing the modeling process efficiently, accurately and with lower turnaround time.
Design Efficiency Is Assured
3D CAD software offers a plethora of tools which cuts the tedious process that essentially has been an inalienable part of manual drafting. Designer’s productivity is significantly improved as avisualization of the outcome can be done easily by putting various mechanical components in perspective. All needful changes can be made during the 3D modeling design process which renders revisiting the design once project execution has started needlessly. The efficiency of design is significantly improved as all suggested and apparent changes can be incorporated readily and expeditiously.
Documents Can Be Maintained In Hassle Free Manner
With the manual process, your draftsman is required to thoroughly maintain documents pertaining to mechanical components used in drawing. Any lapse in accuracy could prove fatal for the project and entailed further expenditure. These shortcomings are bridged over efficiently with 3D CAD designs wherein you get the option of maintaining an extensive database of all components used. This offers unparalleled flexibility in documenting product specifications, material dimensions, cost, geometrical configurations etc.
Adherence to Internationally Approved Standards
This is again one of the benefits of 3D CAD modeling. Output quality and inter-organizational exchange of information become more efficient as 3D CAD generated designs conform to international standards set down by GB, BIS, GOST, ANSI, ISO, CSN, and DIN.
Spontaneous Generation of Design after Revision
Once the design has been subjected to revision, draftsman using traditional methods often grappled with the challenge of regenerating the concealed elements of components. The process was also error-prone. With 3D CAD, the software spontaneously redraws all lines or dashes pertaining to concealed parts which result in regeneration of drawing in a flawless manner after revision.
Turnaround Time Is Cut Short
Product 3D modeling can be completed in an exceptionally short period which consequently reduces the time to manufacturing. This also offers you a competitive edge in the market.
Demonstration of Mechanical Functioning Becomes Easier
Often, you have to make presentations of the proposed mechanical construction to clients to get their approval prior to execution. This is achieved with 3D models which can be viewed in 360 degrees and from different perspectives for optimum visualization. Working of components and proposed benefits of streamlining can be demonstrated through the animation of individual elements for clarity and conspicuity to clients.
Significant Cost Saving
The availability of templates obviates the need for starting the design from scratch. However, if your organization decides to buy the licensed version of CAD software, you have to pay the recurrent expenses related to software fee.
Adequate Representation of Geometry and Relevant Data
You can import the 3D CAD model in other engineering software for interpreting the reaction of mechanical components to heat, stress, fluid contact, resistance, and other impacts. The volumetric representation of model allows it to be sliced in cross sections for securing insights into the complex architecture of the interiors of components. Interference can be assessed by assembling compatible components and related fasteners in 3D canvas. You can devise necessary clearances related to surface geometry to get around impediments visualized in 3D.
Multiple photorealistic products rendering until the final solution is achieved
High-quality 3D CAD model can be rendered with different materials in the software till the final aesthetical outcome is accomplished. The component’s appearance can be manipulated using metal colors, resins etc. to convince the customer and to empower the marketing team in selling the design more effectively.
Why Computer-Aided Design (CAD) is beneficial over drafting done manually?
Earlier, engineering drawings used to take a lot of time for development. Meeting schedules was really difficult for draftsman and designers. The amount of effort needed to manually develop new drawings and edit the existing ones used to be huge.
For completing the drawing, the draftsman had to attentively draw and align lines, dimensional attributes, shapes etc. as per scale. With the advent of CAD drafting, the problems associated with manual drawing were eliminated to a large extent. CAD or Computer Aided Designing offers significant advantages over manual drafting as is discussed below.
The scale of drawing can be perfectly adhered to in CAD
The accuracy of CAD designs is impeccable. You can create 2D or 3D designs with ease. Designs can be visualized from various angles. Popular design software can be linked to CAD program which makes importing or exporting drawings easier along with all parametric dimensions.
CAD takes care of scale automatically but in manual mode, you had to fix the scale before proceeding to withdraw. The scale sets a symmetric proportion to represent the actual object’s dimension in scaled-down mode on paper or digital canvas.
One of the major advantages of CAD is that you get to choose the measurement units appropriate for your drawing and also can set the scale (1:1, 1:2 or whatever you want).
Drawing’s layout can be optimally arranged for in CAD
In manual drafting mode, you have to start with sheet selection. The sheet has title block and border already printed on it. Next, you have to demarcate areas for showing sections, elevations, details and other plans.
This is not the case with CAD. The design has to be initially drawn on model space which is the work environment of CAD. Next, you need to create the design’s layout in the paper space environment. Layout is the drawing sheet, either paper or digital canvas. It comes pre-loaded with elements like title block, dimensional markups, border, note space, along with layout viewports for displaying model views.
Just like the frames or windows of picture, the layout viewports function offer views of the model in various perspectives. The scale can be zoomed in or out for optimum viewing in the viewport.
Drawing details can be organized in an agile manner in CAD
In CAD software, the various layers serve as transparent overlays for representing different components or aspects. You may display the overlays individually or continue with editing or printing the layers discretely or collectively.
This is not the case with manual drafting. You have to maintain separate transparent overlays for representing information related to different aspects. In a construction related plan, the electrical, structural and other components have to be contained in separate overlays.
In CAD, layers can be named for tracking the information effortlessly. Layer locking prevents any modification of the information contained in layers. You can exhibit compliance with industry standards by assigning appropriate attributes to layers related to color, type and weight of lines etc. Layers can be used for organizing drawing items for drafting. You can ensure uniformity of plotting in a layer for all objects present by assigning the layer a unique plot style.
Industry and statutory standards can be decisively complied to in CAD
For engineering or other sophisticated drawings, you need to showcase compliance to standards set down by industry, employer or statutes. While drafting manually, high precision has to be observed for creating text, types, and weights of lines, dimensional attributes etc. You need to develop standards before drawing and have to apply the styles uniformly.
In CAD, you have digital tools that allow the creation of styles that can be applied consistently for ensuring conformity. Everything from dimensional styles, text to attributes for lines can be created in a hassle-free manner.
Various styles can be developed with accuracy in CAD. For example, with a text style, you can specify the font, height, slanting angle, breadth, and other formatting attributes. Styles can be saved along with layouts, border data, title block, layers etc. You can also have drawing templates in which various command settings can be preserved. The templates can be used for instantly starting with new drafting project without worrying about showcasing conformance to standards.
Drawing process is streamlined and expedited in CAD
CAD drawings can be accomplished easily with the help of various digital tools which allow creating lines, shapes, spline curves etc. Objects can be moved, copied, edited, rotated, offset, or mirrored with ease. Objects from one open drawing can be copied to another.
When drafting is done manually, you have to use pencils, rulers, compass, erasers, templates, parallel rules, and other tools. All of them creates a mess. Any error, even minor, has to be manually rectified which makes the entire process tedious.
Accurate drawing is effortlessly achieved in CAD
In manual mode, objects have to be drawn with care for ensuring perfect shape aligned to plan. One has to physically verify if the drawing scale has been factored in properly and dimensional integrity has been maintained.
In CAD software, various methods can be employed for assuring dimensional accuracy. You can snap points on the rectangular grid at intervals for ease of location. Alternately, you have the option of specifying accurate coordinates for indicating points along the drawing. The points can be aligned along the X and Y axes, or at a given angular distance from adjacent points.
You can also take the help of object snaps. With this, objects present in the drawing can be used for snapping to exact locations. For example, you can snap to an arc’s endpoint, or any point on the line, or to the radial point of a circular object. Polar tracking facilitates snapping to angles set earlier. You can also indicate distances with respect to the angles.
CAD offers the flexibility of visualizing the finished drawing
Manually drafted drawings suffer from the constraints of fixed resolution and size.
In CAD, you can flexibly alter the resolution and size of drafts as per requirement. For focusing on specific areas, the display size can be increased with zoom in feature. To have holistic views, you can zoom out the drawing.
You can navigate between points on drawing by panning it. The magnification need not be changed. Zooming and panning can be used together for optimum results. You can easily work on drawings that are large in scale and carry many details.
CAD facilitates multiple modifications without any hassles
In manual drawing exercise, the part of the draft which needs to be resized has to be erased before plotting the dimensions again by hand. For text, all letters have to be rewritten to ensure consistency.
Such extensive rework has been eliminated in CAD. Associative dimensions, as well as texts, can be created in paper space layout. These are bound to the model being worked upon. Any modification in the model results in a spontaneous update of the linked dimensions. You can work with all standard dimensions like angular, linear, ordinate, baseline, radial etc. Within dimensional blocks, attributes like font, text size, content, space, rotation etc. can be revised with ease.
Revisions can be done without wasting time in CAD
Any drawing has to be revised number of times to incorporate new changes. This holds true for paper as well as CAD drawings. In manual mode, the revisions have to be done by erasing and redrawing the affected parts.
In CAD, the long drawn manual editing exercise is cut short with a number of intuitive tools. For copying the drawing either entirely or partly, it need not be redrawn. With just a few mouse clicks, an object can be erased off completely or in partly. If you spot an error in the drawing, you can easily undo the same. An object that has been drawn once never needs to be drawn again. Existing shapes can be modified, mirrored, rotated, scaled, stretched, trimmed and edited easily. This holds true for even complex 3D CAD engineering ddrawings. The properties of the object (like type and weight of line, layering, color etc.) can be altered with ease at any phase of drawing.
Therefore, it is evident that 3D mechanical modeling can provide more benefits than manual modeling. It can cater to all yourmechanical designing needs while resolving the issues faced during manual drafting. There are various CAD service providing company from which you cantake assistance in this matter. They can expedite the process of design development for swifter project execution for your organization.