If you have ever confused blueprints and CAD to be the same, then you are not alone. Blueprints are essentially a photographic copy of original drawings, which is why they are the outcome of the photographic process, whereas CAD is the technique and tool used to create those drawings. In other words, blueprints are created with the help of CAD software, which creates accurate, detailed, and clear 3D or 2D designs that are then printed in the form of blueprints.
With that said, despite the fact that the term blueprint is still used to refer to technical drawings, it does not use CAD because CAD is a digital technology that provides accurate designs that are then printed.
Read on to learn more about the key differences between CAD and blueprints.
What Are Blueprints – An Overview
In simple words, a blueprint is a physical reproduction process that represents drawings on translucent paper, resulting in a blue background and white lines. A blueprint is created with tools such as a ruler, a compass, and pencils. A blueprint created with manual tools can lack precision, which is why it can be prone to human error.
When it comes to the importance of blue print, you should know that Blueprints serve as an important and legally required visual presentation for communicating the details of a project. In other words, blueprints must be compliant with legal and regulatory standards for approvals and permits, as these provide the detailed information that is mandatory for starting and completing projects that are aligned with building codes and safety standards.
What is CAD – An Overview
When it comes to CAD, it refers to a digital process that leverages specialized software to create 2D or 3D designs on a computer. Compared to a blueprint, CAD is created with the help of digital tools, including styluses, keyboards, a mouse, and software programs. Resultantly, the technical drawing from a CAD ensures high precision and accurate lines. A CAD is easy to modify and can be easily zoomed in. CAD can be saved in various formats and versions.
Since CAD is a computer-aided drawing, it is perfect for presenting digital designs and offers a detailed analysis throughout the design and engineering process.
Key Differences between CAD and Blueprints
Now, you already know that CAD is a software-based method for creating blueprints. However, in certain situations, blueprints can be more cost-effective as you can create them with the help of manual tools and do not necessarily have to rely on software. With that said, due to the manual drafting of blueprints with the help of physical tools, blueprints can be prone to human error and lower quality.
On the other hand, CADs are created with digital software and hardware, which is why these are less prone to error and offer high-quality and accurate details of the print.
CAD vs. Blueprint: What Works for You
Now that you know the differences, you must be wondering when to choose CAD or blueprints. We recommend opting for CAD if you are looking for a complex, detailed, and digital 2D or 3D design, and CAD ensures speed, editing, and precision. On the other hand, you might want to opt for blueprints, which are essentially conventional technical drawings, if you are looking for a quick visual draft in situations where there is no access to CAD software.
