3D Modeling in AutoCAD: What You Need to Know

3D modeling in AutoCAD is not as prevalent as other 3D modeling software available in the market. Basically, AutoCAD is widely famous as a 2D drafting tool due to its mastery of 2D modeling. It does not mean that we can not use this tool for 3D modeling. AutoCAD has some standard 3D modeling tools which are used to create different complex 3D models.

There is no question that AutoCAD has been considered the father of computer-aided design(CAD) for a long time, and its popularity is still shining in the market as it used to. 

This software has different sets of tools and arrays of features that make it the coolest device for many industries like engineering, architecture, graphic design, and many more. Most students preferred this versatile modeling software to steep their learning curves during their learning and training. 

How 3D Modeling Works In AutoCAD

3D design of equipment created using AutoCAD. Image source: Twitter

Before starting your 3D modeling in AutoCAD, you have to make some changes in AutoCAD. Below we have detailed how you can begin 3D modeling in AutoCAD. 

Steps:

• First, change your workspace to 3D modeling from the status bar shown at the bottom of the application.
• When you select this, you will get an updated ribbon that will show the three tools.
• When you click on the corner of the view cube showing on the top right of the model space, you can get access to an isometric view. If you don't find the view cube, you can see it by clicking on the View tab of the ribbon.
• Click on the 3DPOLY command to draw a closed 3D polyline in the XZ plane.
• Function key F8 allows you to start drawing, and you can draw with 2D figures also. You have to provide them in all three axes to draw 3D designs.
• In the next step, select the extrude command shown on the HOME tab in the AutoCAD ribbon, then choose the 3D polylines from previous steps; type 90 for the extrusion height to create 3D solids.
•  When you enter the 3D modeling workspace of AutoCAD to create your 3D model, you will get different modeling tools like presspull, extrude, sweep, union subtracts, and many more. Let's take a brief look at these most common tools used in AutoCAD:

Presspull: with the help of presspull, you will get access to select close drawing objects like wall outlines, and you can easily drag and drop according to your cursor movement to the desired location.

Extrude: Extrude is something like presspull. The difference is that in presspull, you have to select and drop your model through the cursor, but you have to enter numerical values in the extrude.

Sweep: Sweep allows you to use different drawing shapes, which you have to extend along a particular path to create a solid shape. 

Sweep union: Sweep union allows you to combine all the selected solids, surfaces, or regions into one form of the model.

Subtract: With the help of Subtract, you can easily create solid by removing one layer from another.

Best Alternatives To AutoCAD

Picking the best alternative for AutoCAD is not an easy task; however, the market has plenty of versatile 3D modeling software, but many factors have to be kept in mind while choosing. You have to consider a few aspects before buying any other 3D modeling software.

• An alternative with core competence means it should support 2D modeling and draft with the help of 3D modeling tools.
• Different key features like rendering and unique capabilities such as working with BIM files are required.
• There should be proper online technical support between developers and users.

AutoCAD is famous mainly for two-dimensional designs like architectural floor plans, industrial uses, factory layouts, etc. So if we are finding the most suitable substitute for AutoCAD, then it should be 2D-oriented and also has the capability of handling DWG and DXF files. 

Here we have come up with the best alternatives for AutoCAD; all the below discussed options have unique features and focus on specific application areas. You can choose these options according to your demands.

1. SelfCAD
2. BRL CAD
3. FreeCAD
4. Sketchup
5. LibreCAD
6. Draftsight
7. OpenSCAD

1. SelfCAD (Overall Best Alternative to AutoCAD)

SelfCAD is one of the best alternative 3D modeling software for AutoCAD. It has many features that help you create unique designs and 3D models with ease. SelfCAD lets you create 3D objects, renders, and simple animations in less time than using traditional CAD software.

SelfCAD has a lot of excellent training materials that can help you as a beginner. There are interactive tutorials, YouTube videos, and 3D modeling beginner courses on Udemy that allow one, regardless of their experience, to get started on 3D modeling with much ease.

Other key features of SelfCAD includes:

• SelfCAD is an easy-to-use, all-in-one 3D design software that lets you create, edit, and sculpt your own 3D models.
• With its intuitive interface, you can quickly start designing without having to worry about learning complex software tools. There are also interactive tutorials available to help you get started with much ease.
• SelfCAD offers a wide range of powerful yet easy-to-use 3D modeling tools that let you create any type of 3D model you can imagine.
• You can easily add or remove parts from your models using the built-in Boolean operations tool.
• The software provides an extensive range of materials and textures that you can use to make your models look realistic or give them a unique appearance.
• The software’s built-in rendering engine lets you create photo-realistic images of your models with just a few clicks.
• You can prepare your designs for 3D printing directly from SelfCAD using any standard 3D printer or send them to an online 3D printing service.
• SelfCAD comes with a perfect STL repair tool that lets you fix common problems with STL files before printing them.
• The software automatically saves your work as you go, so you never have to worry about losing your progress.
• SelfCAD is available online, on Windows, and macOS.

Free: Forever (with limited features).

SelfCAD Pro Monthly: $14.99.

SelfCAD Pro Yearly: $139.99.

SelfCAD Perpetual License: $599.00 (Lifetime access)

2. BRL CAD: 

With an extensive geometry library and high-performance ray tracing, BRL CAD is one of the best free and open-source alternatives to AutoCAD. BRL CAD has a great collaboration with LibreCAD. BRL CAD uses google summer of code and googles code.  BRL CAD uses a hybrid CSG and B rep kernel; for high performance, it uses ray tracing. It also has extensive geometry libraries where you can share your models with different users. 

Pricing: It is a free alternative for AutoCAD.

3.FreeCAD: 

FreeCAD is the best free alternative for AutoCAD. Not only free, but it is also open-source modeling software that you can start using in 2022. You can easily create and download the readymade models even if you can view, edit, copy and distribute. It has many parametric 3D modeling qualities through which you can get the most out of different CAD models. You can easily convert 2D models into 3D and vice versa. It supports files like STL, IGES, SVG, DAE, IFC, OBJ, DXF, STEP, and many others.

Pricing: It is also a free alternative for AutoCAD.

4. Sketchup: 

With the most beginner-friendly interface Sketchup formerly known as Google Sketchup, is one of the best-paid substitutes for AutoCAD available in the market. Sketchup is an excellent choice for professionals, beginners, students, and hobbyists. It is mostly suitable for beginners who want to enter the CAD world.

Sketchup is specially designed for architectural applications. It has its own 3D warehouse repository where you can land up with different 3D models created and uploaded by many individual professionals. These models you can easily download and incorporate into your projects. It also has an extensive plugin library where you can use rendering applications such as Vray. 

Pricing: $300 for a pro subscription.

5.LibreCAD: 

LibreCAD is an excellent free and open-source option for AutoCAD. It is also similar to FreeCAD. Like Sketchup, LibreCAD also has a large community of users who create different 3D and 2D models and donate and share them with other users. Initially, it was also known as CADuntu, but after a few months, it was renamed LibreCAD. It is a free, open-source modeling software; you don't need to pay to create models and download already made models. 

Pricing: It is a free alternative for AutoCAD

6. Draftsight: 

Draftsight is suitable for professionals who have experience in AutoCAD. It is one of the best affordable alternatives to AutoCAD. DraftSight markets itself as an affordable preference to AutoCAD. With less price, you will get a world-class 2D drafting CAD solution without the hefty price tag of AutoCAD. Draftsight is said to provide an easy solution to tools like AutoCAD by offering a colorful user interface.

Draftsight offers a similar 2D drafting layer system where you get version control and revision. One of the best features of Draftsight is it also natively works with AutoCAD dynamics blocks. Like other options discussed above, Draftsight also offers an extensive library where you can easily create and share your design and download others easily. Also, it can compare designs and add hardware symbols to the different project files. 

Pricing: $200 for a professional license.

7.OpenSCAD: 

OpenSCAD program is an excellent free alternative to AutoCAD, where you can design and develop different complex models like AutoCAD without any difficulty. It can be operated on any Windows, Linux, and Mac device. However, it is free, so, understandably, it will not fully satisfy you as AutoCAD. Still, if you are a beginner and want to experience 2D and 3D modeling, then, of course, you can use this open-source, free CAD alternative.

Conclusion

Now you know what makes AutoCAD stand out in the crowd, its unique attributes, disadvantages, and hence the best possible alternatives.  Take your pick; be mindful of your priorities. Don’t be shy to ask us if you have any queries!

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Enjoy powerful modeling, rendering, and 3D printing tools without the steep learning curve.

Need to learn 3D modeling? Get started with interactive tutorials.