- SOLIDWORKS 3D CAD software is used by over 2 million engineers and product designers across the globe. It has 3 different packages available for the beginner, the intermediate, and the pro and is rated one of the best 3D printing software programs due to its strong design operations with intuitive user interface, which allows for a speedy design process.
- Tinkercad is a free, easy-to-use app for 3D design, electronics, and coding.
- 3D Slash is a free CAD software for beginners. This software has both online and offline versions through which you can create 3D models. It uses a simple sculpting approach to create 3D models. In this approach, you get 3D cuboid models as a base with various sculpting tools.
Which is the best CAD software for 3D printing? Whether you are a beginner or expert 3D printing professional, there is something for you.
It can be hard finding the best free 3D printing software out there from 3D modelling software, to slicers to edit and repair apps. That's why I decided to put together an nice, easy to understand list of free 3D printing programs that are widely used in the 3D printing community. Free and ridiculously easy to master, 3D Slash is a fantastic 3D modeling software for designing your own 3D printable objects. Subverting traditional CAD principles, you won't find options such as extrusion and revolution. Rather, there's a simplified layout that focuses on solid blocks which can, in turn, be divided into smaller blocks.
Using the right CAD software will make your 3D printing project easier. The right software to use will depend on what you are trying to print.
3D Design Software
There are two main categories of 3D design software: CAD software and 3D modeling software.
Generally, CAD (Computer Aided Design) software is used when creating industrial objects, such as mechanical objects.
On the other hand, 3D modeling software is used in video games and films to make organic animations. However, the software can also be used to create 3D print models.
Using CAD Software for 3D Printing
CAD software are highly technical tools that are used in industrial design, architecture, aerospace engineering, mechanical design, and other fronts.
Typically, a CAD model contains data such as tolerance, dimensions, material properties, specific information about the manufacturing process. Some CAD applications also have advanced animation and rendering capabilities, which make it easier to visualize the final product.
When making 3D printable models with CAD software, you can save the prints in stereolithography file format (STL). This is the default CAD file format for additive manufacturing (AM).
However, there are also other file formats that are used for additive manufacturing.
Which CAD Software Should You Use?
When I started using CAD software with my first 3D printer, I had no previous experience of 3D modeling. If you are a beginner, you shouldn't really be scared of using CAD software. There are lots of tutorials on YouTube on how to use specific CAD software.
Over the years, I've become more experienced in 3D printing and have tested various CAD software programs. Here is an overview of the best CAD software for 3D printing, for both beginners and experts.
Best CAD Software for 3D Printing (For Both Beginners & Experts)
1. Blender
The first program I downloaded and familiarized myself with was Blender– a full-featured modeling program with a physics engine and animation capabilities. The software has hundreds of settings and menus, which you will not need as a beginner.
With Blender, as is the case with most CAD 3D software, you will need a powerful machine to run it. Getting started with the software is easy, thanks to the many tutorials on YouTube.
After days of watching tutorials, I was more than pleased with what I managed to accomplish in Blender.
This is an awesome program with many capabilities. However, the program requires some computer power and may not be the ultimate beginner program.
Watch Blender Tutorials
Level: Beginner
Cost: Free
2. TinkerCad
TinkerCad is a bit of a straight opposite of Blender: it's incredibly simple, educational and runs directly in your browser.
On the software, there's a menu full of basic shapes that you can puzzle together as if it were Lego. However, it is impossible to round off the corners of the shapes you create with the program.
TinkerCad makes it very easy to import vector graphics and make them three-dimensional and ready for printing.
However, the software is relatively limited. There is not a lot you can do with your 3D object with TinkerCad.
Watch TinkerCad Tutorials
Level: Beginner
Cost: Free
3. FreeCAD
FreeCAD is an open-source 3D modeling tool that allows you to design real-life objects of any size. The free software has parametric component, which makes editing easier. For instance, when you are creating your model, you can go to its history and change the parameters (color, dimensions, etc.) to get a different model.
I wouldn't recommend FreeCAD for professional 3D printing artists since it has just basic options. However, it is a good CAD software for beginners.
Watch FreeCAD Tutorials
Level: Beginner
Cost: Free Handbrake convert to mpeg.
4. BlocksCAD
BlocksCAD is specifically designed for educational purposes. When you have mastered the software, you will be able to use OpenSCAD, a more advanced CAD program. With BlocksCAD, the commands for developing and transforming objects are represented by color blocks.
The software's code is compatible with OpenSCAD's code. Therefore, after developing your models on BlocksCAD, you can polish them up on OpenSCAD. You can export your models as either STL or OpenSCAD.
Check BlocksCAD YouTube channel to learn how to use the software.
Watch BlocksCAD Tutorials
Level: Beginner
Cost: Free
5. Creo
One of the market leaders in product design is Creo CAD software. This program has many functionalities, such as direct modeling, freestyle surface generation, motion generation, parametric generation, structural generation, thermal generation, among others.
With this complete additive manufacturing software, you can perform all your dimensioning calculations while modeling your final idea.
The software comes with a 30-day fully-functioning trial.
Watch Creo 3D Tutorials
Level: Intermediate
Cost: $2,310 for each license
6. Autodesk Fusion 360
Autodesk Fusion 360 is a popular CAD program designed forproduct design. On the software, there is a button that you can press to send your finished item directly to any 3D printer or slicer.
Autodesk Fusion 360 is quite an advanced CAD software. I did not really know how to use any of the features until I got a crash course in SolidWorks, a commercial program with similar features.
There are two modes to work in Fusion 360: a CAD mode with logic, and a modeling mode, where you can easily turn your stylish symmetrical model into organic models.
Fusion 360 offers a mix of features found in both Blender and TinkerCad. As a result, it is the software I prefer and use the most.
Watch Fusion 360 Tutorials
Level: Intermediate
Cost: $60 per month or free for students, educators & academic institutions
7. Solidworks
Solidworks is one of the best CAD software for professional 3D designers. This parametric feature-based software has various features, including design validation tools. The software is practical and detailed, which makes it an excellent choice for designing industrial objects.
Most CAD software mimics curves by gently inclining flat structures. However, Solidworks uses a system of NURBS, which allows it to create detailed curvatures. Moreover, the software using dimensional sketching rather than polygonal modeling. Dimensional sketching makes resizing less of a hassle.
However, Solidworks has limited support for importing .STL files. If you want to download and edit .STL files, you will need a different program.
Watch Solidworks Tutorials
Level: Professional
Cost: $3,995 for each license
8. AutoCAD
AutoCAD is a professional 3D modeling software that is mainly used in industrial and architectural design. The software is great at 2D drafting but not really much at 3D modeling. As a result, it is not as widely used in the 3D printing community as some of the software I've presented above. Moreover, the software has a steep learning curve when you want to make complex models.
AutoCAD is primarily designed for professionals with experience in programming models algorithmically. The software's models can be converted into STLL files for 3D printing.
Watch AutoCAD Tutorials
Level: Professional
Cost:From $185/month or $1,470/year
-Free and fully-functional version to download for students and faculties.
9. CATIA
CATIA CAD is not just a CAD software but a multi-platform software suite for CAD, CAE (Computer-Aided Engineering), CAM (Computer-Aided Manufacturing) and more. CATIA enabled advanced product design and development through different stages. This makes it an excellent program for systems architects, mechanical engineers, and creative designers.
CATIA also has a 3D design environment through which different parties can collaborate on product modeling and share designs.
Watch CATIA Tutorials
Level: Professional
Cost: From $10,000
10. OpenSCAD
OpenSCAD is an open-source software for making solid 3D models. This free software is aimed at experienced users looking to use advanced features. Programmers and coders love the software's Extrusion of 2D outlines and Constructive Solid Geometry (CSG).
You can use OpenSCAD to create simple shapes that are already parametrically defined.
However, since the software is completely based on description language, it may not be suitable for everyone.
Watch OpenSCAD Tutorials
Level: Professional
Cost: Free
11. Rhino3D
Rhino3D is a commercial 3D computer graphics and CAD program that is known for versatility. The software used NURB, a precise mathematical model that enables manipulation of solids, surfaces, meshes, curves and points in different ways.
Rhino3D comes with various design features and can create complex 3D models. However, it has quite a learning curve.
Watch Rhino3D Tutorials
Level: Professional
Cost: Includes different bundles; Rhino 6.0 starts at 995€ for Windows and Rhino 5.0 at 695€ for Mac
Sooner or later, you will find the best CAD software for 3D printing for you. However, if you are a beginner, I would recommend TinkerCad.
Want help finding the right 3D printer? Then read our guide to buying 3D printers!
The community of 3D printing and modeling may have become much larger in the past few years, but most 3D models shared online nowadays are limited to a few file formats. One of these file formats is STL. Despite its ubiquity, STL files are notoriously difficult to edit. Should you find yourself with an STL file format that you'd like to tweak and play around with, what software should you use? What exactly is the STL file format, and why is it so important?
What is the STL file format?
STL stands for 'Stereolithography' and is considered one of the simplest 3D file formats. It's also one of the oldest, developed in the 1980s and was originally meant to simplify the transfer of data from 3D CAD models to a 3D printer.
A characteristic of the STL file format, which makes it one of the simpler options, is that it approximates a 3D surface as a triangular mesh. Thus, instead of a truly smooth surface, an STL object is composed of a high number of very small, non-overlapping triangles. This technique is known as tessellation and is considered one of the oldest methods of simplifying a smooth surface in 3D space.
By increasing the number and decreasing the size of the triangles that form the tessellated pattern, the resolution of a 3D file in the STL format can be enhanced. Naturally, a file that holds a higher resolution model will be larger. However, the accuracy at which an STL file can approximate a surface will always be at a lower fidelity compared to file formats that represent 3D surfaces using smooth splines, such as OBJ.
What are the benefits of STL?
The STL file format has been widely used for sharing of models within the 3D printing community. They may have limitations in terms of resolution and fidelity, but so do 3D printers. In fact, STL has become such a preferred file format that most 3D printers and slicer software used nowadays have been designed to work with STL files.
Since STL files are simple and have small file sizes, they are more easily shared and downloaded than other, high-fidelity alternatives. In most cases, users of 3D printers can just download a finished model off of file-sharing websites and print them at home. Beginners to 3D printing typically start this way before developing the skills to come up with their own models.
What are STL editors, and why use them?
While downloading finished models is certainly a quick and convenient way to get into 3D printing, some people may want to edit the features of a model to suit their needs. There could also be circumstances when you only need to print a part of a model. Not all models are perfect, so you may even find yourself needing to repair that model you just downloaded.
There are two different types of STL editing and modeling software. The first is based on CAD and is made for general 3D modeling. This technology has been the standard for industrial and professional 3D modeling and allows for extremely accurate measurement and modeling in 3D space. Since the resolution of 3D printers is limited, CAD software is considered overpowered for use in modeling for 3D printers. Thus, although CAD-based software platforms do an excellent job, editing STL files do not quite utilize the full potential of this type of software.
3D modeling software specially made for 3D printing are called mesh editing software. Instead of precise software representation, a mesh editing software instead reduces these objects into shells with no internal filling. This simplifies the modeling process, although the model can be quickly converted to solid objects right before printing. Within the 3D printing community, mesh editing software is considered more appropriate for STL editing.
The top 5 best free STL editors
1. FreeCAD
FreeCAD is one of the most feature-rich CAD design software platforms. Best of all, the software is open source and completely free. FreeCAD uses parametric modeling principles and has been widely used by both professionals and beginners.
With FreeCAD, you can add features, make measurements, and separate components of an existing STL file. Since FreeCAD was originally meant for mechanical and engineering design, it allows for extremely fine and precise edits. However, it's very difficult to use FreeCAD for sculpting, so smooth surfaces can be challenging.
Even if you don't already have an existing STL file, you can still use FreeCAD to come up with your own 3D sketches and model them in 3D space. It does take some time to get used to the FreeCAD platform and to learn how to use its functions, but it's not so difficult to be inaccessible for beginners. One major flaw of the open source platform of FreeCAD is that it can be full of bugs, although this could be easily remedied by sticking to the latest stable version.
2. Blender
Blender is another free 3D printing software that is a little more sophisticated than FreeCAD. It has been touted as a software that can support the whole 3D design pipeline and is best suited for individual designers and small design firms. With a wide suite of excellent features, Blender has been used to for modeling, animation, video rendering, film and visual effects, and 3D simulation.
A huge part of why Blender has been able to extend its range of capabilities is that it's completely community-driven. Users can introduce new features, make minor or major changes to the code, or implement bug fixes. Best of all, Blender is completely free, even if you use it for commercial purposes.
Although modeling is just one of the major functions of Blender, it has a very rich set of features. You can build your own models from 2D sketches or edit an existing STL file. Aside from the usual features, including STL repair, removal and addition of components, and partial masking of models, Blender has much more advanced sculpting capabilities. With twenty different brush types and dynamic sculpting, you can pretty much generate any type of smooth surface. You can grab and pinch areas, flatten sections, inflate and deflate a model, or sculpt the model like clay.
We wouldn't classify Blender as beginner-friendly, but its learning curve is pretty friendly. With so many features, it will take some time before you can unlock the full potential of Blender. As far as 3D printing software go, Blender is one of the most comprehensive.
3. SketchUp
The SketchUp software platform, which used to be owned by Google, is now with Trimble but still retains the user-friendly characteristic for which it became famous for. You have the option of downloading the free SketchUp Make version or upgrading to the paid SketchUp Pro version. The good news is that you can use the free version to edit STL files, but you'll need to make sure to download and install the SketchUp STL plugin first.
The simplicity of SketchUp is its strong suit. It's very easy to learn, and its interface will feel familiar to anyone who's ever used a graphic design program. However, this ease-of-use comes at the price of a limited feature set. The STL editing capabilities of SketchUp are pretty much limited to dragging edges and vertices and adding or deleting individual triangles. It has no built-in STL repair function, but you can still do it manually by using the Solid Inspector tool and correcting any hitches yourself.
Despite the limited features of SketchUp, it remains one of the most widely used 3D design software worldwide. It's highly recommended for beginners. Even people with no 3D modeling experience can learn the fundamentals of SketchUp within a few minutes.
4. MeshLab
What are the benefits of STL?
The STL file format has been widely used for sharing of models within the 3D printing community. They may have limitations in terms of resolution and fidelity, but so do 3D printers. In fact, STL has become such a preferred file format that most 3D printers and slicer software used nowadays have been designed to work with STL files.
Since STL files are simple and have small file sizes, they are more easily shared and downloaded than other, high-fidelity alternatives. In most cases, users of 3D printers can just download a finished model off of file-sharing websites and print them at home. Beginners to 3D printing typically start this way before developing the skills to come up with their own models.
What are STL editors, and why use them?
While downloading finished models is certainly a quick and convenient way to get into 3D printing, some people may want to edit the features of a model to suit their needs. There could also be circumstances when you only need to print a part of a model. Not all models are perfect, so you may even find yourself needing to repair that model you just downloaded.
There are two different types of STL editing and modeling software. The first is based on CAD and is made for general 3D modeling. This technology has been the standard for industrial and professional 3D modeling and allows for extremely accurate measurement and modeling in 3D space. Since the resolution of 3D printers is limited, CAD software is considered overpowered for use in modeling for 3D printers. Thus, although CAD-based software platforms do an excellent job, editing STL files do not quite utilize the full potential of this type of software.
3D modeling software specially made for 3D printing are called mesh editing software. Instead of precise software representation, a mesh editing software instead reduces these objects into shells with no internal filling. This simplifies the modeling process, although the model can be quickly converted to solid objects right before printing. Within the 3D printing community, mesh editing software is considered more appropriate for STL editing.
The top 5 best free STL editors
1. FreeCAD
FreeCAD is one of the most feature-rich CAD design software platforms. Best of all, the software is open source and completely free. FreeCAD uses parametric modeling principles and has been widely used by both professionals and beginners.
With FreeCAD, you can add features, make measurements, and separate components of an existing STL file. Since FreeCAD was originally meant for mechanical and engineering design, it allows for extremely fine and precise edits. However, it's very difficult to use FreeCAD for sculpting, so smooth surfaces can be challenging.
Even if you don't already have an existing STL file, you can still use FreeCAD to come up with your own 3D sketches and model them in 3D space. It does take some time to get used to the FreeCAD platform and to learn how to use its functions, but it's not so difficult to be inaccessible for beginners. One major flaw of the open source platform of FreeCAD is that it can be full of bugs, although this could be easily remedied by sticking to the latest stable version.
2. Blender
Blender is another free 3D printing software that is a little more sophisticated than FreeCAD. It has been touted as a software that can support the whole 3D design pipeline and is best suited for individual designers and small design firms. With a wide suite of excellent features, Blender has been used to for modeling, animation, video rendering, film and visual effects, and 3D simulation.
A huge part of why Blender has been able to extend its range of capabilities is that it's completely community-driven. Users can introduce new features, make minor or major changes to the code, or implement bug fixes. Best of all, Blender is completely free, even if you use it for commercial purposes.
Although modeling is just one of the major functions of Blender, it has a very rich set of features. You can build your own models from 2D sketches or edit an existing STL file. Aside from the usual features, including STL repair, removal and addition of components, and partial masking of models, Blender has much more advanced sculpting capabilities. With twenty different brush types and dynamic sculpting, you can pretty much generate any type of smooth surface. You can grab and pinch areas, flatten sections, inflate and deflate a model, or sculpt the model like clay.
We wouldn't classify Blender as beginner-friendly, but its learning curve is pretty friendly. With so many features, it will take some time before you can unlock the full potential of Blender. As far as 3D printing software go, Blender is one of the most comprehensive.
3. SketchUp
The SketchUp software platform, which used to be owned by Google, is now with Trimble but still retains the user-friendly characteristic for which it became famous for. You have the option of downloading the free SketchUp Make version or upgrading to the paid SketchUp Pro version. The good news is that you can use the free version to edit STL files, but you'll need to make sure to download and install the SketchUp STL plugin first.
The simplicity of SketchUp is its strong suit. It's very easy to learn, and its interface will feel familiar to anyone who's ever used a graphic design program. However, this ease-of-use comes at the price of a limited feature set. The STL editing capabilities of SketchUp are pretty much limited to dragging edges and vertices and adding or deleting individual triangles. It has no built-in STL repair function, but you can still do it manually by using the Solid Inspector tool and correcting any hitches yourself.
Despite the limited features of SketchUp, it remains one of the most widely used 3D design software worldwide. It's highly recommended for beginners. Even people with no 3D modeling experience can learn the fundamentals of SketchUp within a few minutes.
4. MeshLab
MeshLab, as its name implies, is a software platform for editing 3D triangular meshes. It's also open source, which helps give it a rich set of functions and features. If you need modeling software specifically for 3D printing, MeshLab is one of the best options for editing, cleaning, rendering, and texturing mesh-based models.
You will need an existing STL file to make the most use out of MeshLab. It can combine different meshes of a 3D scan, remove parts of an existing, and automatically repair a 3D model. However, it cannot be used to build your own models from scratch. You can also simplify the triangular faces of a model, thereby reducing geometry complexity for easier file sharing.
MeshLab isn't exceptionally user-friendly, but their website has several tutorials that can help get you started. They also have a dedicated community of developers that can provide support if you need bug fixes or if you just have any general questions or clarifications.
5. MeshMixer
In the field of free mesh editing programs, few can equal the quality of MeshMixer. Aside from having a huge set of the necessary mesh editing features, MeshMixer is also very user-friendly. It even has a built-in slicer tool so you can prepare your model for printing and send it directly to your 3D printer via MeshMixer.
Cad For 3d Printer
The development team behind MeshMixer calls it the 'Swiss Army knife' of 3D meshes. It does have just about everything you need, so we're inclined to agree. You can combine meshes, drag edges and vertices, make measurements, smooth meshes, and even do free-form sculpting. The software comes with a couple of automated features that can help identify problems with your STL file such as holes, misaligned surface, and paper-thin walls.
By combining ease-of-use and an impressive array of features, MeshMixer is considered by many to be the best free mesh editing software. It's only available for Windows and Mac, though, so Linux users will have to look elsewhere.
Easiest Cad Program For 3d Printing Software
Final thoughts
If you've gotten into 3D printing, then you probably have dozens to hundreds of STL files lying around in your computer. While printing them as they were modeled originally is fine, the next logical step you need to take is to learn how to edit existing models. This is best done with an STL editor. If you're still a beginner, then we recommend starting with an STL editor that you can download for free.
As you can see from our list of the best free STL editors, being free for use has not hindered these software platforms from having excellent quality. With impressive features and intelligently designed interfaces, it's almost unbelievable that they are free.
