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CAD Drafting and 3D Drawing Services: The Multi-purpose Use

Published on September 3, 2018
CAD Drafting and Drawing Services

It’s little over a decade that Computer-aided design (CAD) made its way in the industrial design engineering. From developing concept ideas into product designs and helping design engineers, manufacturing firms and fabricators to transform 3D models into physical products where CAD drafting and drawings remain one of the imperative means to convey design intent.

AutoCAD remained the first choice of mechanical drafters for 3D CAD modeling as well as 3D drawings. It enables design engineers as well as the drafters to deliver error-free product manufacturing drawings with precise geometry.

Manufacturing and design engineering companies rely on CAD drafting and drawings service providers around their location due to the useful characteristics. Additionally, outsourced 2D & 3D CAD drafting services take care of prerequisites of expertise in CAD drafting, handling multiple drafting software, and skills to utilize technologies like AR/VR with cost estimation and other APIs.

As one of the main advantages, for converting 2D to 3D drawings, CAD service providers charge less hourly rates as compared to what they pay to in-house drafters – hired permanently. These benefits of CAD empower manufacturing industry to grow significantly, save time and operational costs.

CAD companies’ located in USA, UK, Australia, Canada, Germany play a major role in assisting design engineers and manufacturers in converting their legacy CAD designs into editable formats.

Experienced CAD specialists deliver accurate CAD conversion services from hand drawn sketches, pdf files, tiff, jpeg and blue prints, into 2D drafting, and paper to CAD drawings. These CAD drafting companies also provide .dwg files with detailed BOMs, tolerances, fits, limits, annotations, footnotes, and overlay texts for specific assembly or manufacturing instructions for every component, and completes assembly drawings.

Importance of CAD drafting in the industrial engineering

The process of developing technical engineering drawings and modeling, today, depends immensely on CAD platforms. This means that final products depend largely on how the CAD drafting is done & how the drawings are developed, irrespective of what products are – new or rebuilding the existing ones. Importance of CAD for an industrial design engineer or product designers cannot be negated.

Final fabrication and manufacturing drawings

One of the most prominent ways manufacturers benefit by drafting in CAD is to develop a seamless communication channel between the design engineers and shop floor fabricators. Fabrication drawings, GA drawings, assembly and installation drawings, and P&IDs – especially in case of plant room layouts are developed in AutoCAD which helps the communication between the ideal CAD shop and the real world machine shop.

Also in case of sheet metal, where DFM guidelines are strictly to be followed to minimize the ECOs arising from the shop floor, 3D CAD has proved to be an efficient solution. Inbuilt CAD functionalities stop design engineers from designing anything that violates any of the DFM rules – for manufacturing as well as for the assembly. The greatest benefit to manufacturer here is that it reduces the count of change orders for cost effectiveness.

3D CAD Product Modeling

The product design ideas that have been originally conceived by the product design engineers essentially will have to be first drafted and then modeled with SolidWorks to visualize, understand, and convey design intents appropriately. Accurate geometrical attributes, surface finishes, functionality, operational performance etc. will have to be assessed through simulation in ANSYS and for that engineers and designers need 3D CAD modeling. All in all a 3D model is the way through the product design verification and obtaining proofs of designs concepts.

Furthermore, it opens the door for adopting new upcoming technologies like 3D printing and additive manufacturing. These technologies help the manufacturer generate complex shapes, based on CAD drafts, with ease and relatively low material waste, resulting in significant profits for the manufacturers.

Another major advantage of 3D modeling is that these models can be easily exported to other software for multipurpose works. Like CNC programming can directly import the strategic points on the model geometry and develop the cutting tool programming for tool path.

Secondly, BIM content for building products manufacturers can easily be generated either with help of Revit, or from a comprehensive geometry of the native SolidWorks 3D model. It helps all involved in a construction project to collaborate with the respective sub-contractor efficiently.

Reverse Engineering the Products

Another major benefit of CAD drafting emerges at times when the products are worn out and have to be replaced. If the spares are scarce and the part to be replaced is not standard, it is a worrisome time for OEMs, as well as the manufacturers.

Usually as part of reverse engineering technique the existing part is laser scanned and the original geometry of the part is studied using the scan and CMM data. This scanned data is then imported to CAD environment and a comprehensive and accurate geometry is developed. Any design changes or value additions can be done in these CAD models.

A final wrap up

All in all, CAD drafting and 3D drawings have multitude of uses other than just designing the product concept. Also, if the manufacturer is incapable of setting up a CAD shop in-house, offshore drafting companies in India have proven experience of working with clients across the globe and industries.

It’s just that as a product manufacturer, contractor or as a fabricator; you will have to wisely select the best ones – that suit your company’s needs, will adhere to your design and drafting standards and ensure data privacy.

At TrueCADD, we ensure you of end to end CAD support solutions to help you meet your manufacturing goals and stay ahead in agile markets.

For more information, please send us an email at: info@truecadd.com.

Author Gaurang Trivedi

About Author: is engineering consultant at TrueCADD. Besides, donning multiple hats, as a website manager and marketing in charge, he also oversees the editorial content, coordinating and managing the website, its news sections, blogs and social media promotions as well.

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