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?
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What is the STL file format?
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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.
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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. Can i install google chrome on my macbook pro. 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. Google chrome macbook download.
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.
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.
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.
Posted By Kat Plewa on May 22, 2019 |
Are you starting your adventure with 3D modeling software or maybe you tried and feel like you haven't found the perfect choice for your needs yet? Don't get discouraged! There are actually plenty of choices and we prepared for you the ultimate list of the easiest 3D modeling software. Either you're just a hobbyist or you have professional plans for your 3D modeling future, our list will surely help you to take a closer look at the easiest 3D modeling software!
Which software should you choose?
Overall, we will provide you with the easiest 3D modeling software divided into 3 categories. Firstly we will introduce to you software for absolute beginners. They can be used for simple models or mechanical parts and are great to begin learning 3D modeling.
Then we will talk about software to edit 3D models. It can happen that you just need to adjust a 3D model you got off the internet and there is no need for you to get complicated 3D programs and start learning 3D modeling. We will show you that there are easier solutions.
Lastly, you will find 3D modeling software which is still easy to use, but will also provide you with more advanced options. They are great to start learning 3D modeling and then continue using the same programs for more complex tasks.
To choose the best software for your needs, you need to understand what skills do you require. There are also various types of software, 3D modeling, and CAD. What is the difference? Find out here.
Top 6 easy software for beginners
Tinkercad
Tinkercad is a product of Autodesk, leader of the most popular 3D modeling and CAD software. It's free software available online. It's very intuitive and shows you the basics of 3D by using primitive shapes. It is fast and easy, you will build your first 3D model in no time.
Vectary
Vectary has a nice set of tools as it was inspired by graphics, product, and video games design, but also 3D printing. Therefore, this online software is great for all sorts of 3D modeling projects. Vectary works by dragging and dropping the elements, which means you don't have to create them from scratch. This software also allows for creating renders. A free version is available after signing up on the website.
Morphi
https://www.geeky-gadgets.com/morphi-ipad-app-makes-3d-design-on-a-tablet-even-easier-20-01-2015/
Maybe you prefer to use a tablet over a computer; which is more mobile and easier to take anywhere with you. This need has been answered by a New York-based startup and their mobile app Morphi.
It is easy to learn and it's popular in American schools to teach kids 3D modeling. You can make a simple project or choose one from decorative and functional models available in the library. The application is free, however additional charges apply for specific models and tools. For schools, the software costs $9.99.
3D Slash
You probably have heard or even played Minecraft. This iconic game is based on blocks. This was an inspiration for 3D Slash, where you delete blocks to achieve the shape of your model. One option is to trace an image, or you can create a basic shape and then sculpt it by deleting and adding blocks. The accuracy in this software is 0.1 mm which is enough for simple, but functional 3D models. This software fast and easy to learn additionally can be quite fun when deleting the blocks.
SelfCAD
https://www.3printr.com/tinkercad-vs-selfcad-two-great-3d-softwares-5346915/
This is one of the latest arrivals in the 3D software family. It was only released this year, but it's already very popular in American schools. Why? Because it's very user-friendly and one of the easiest 3D modeling software for beginners out there.
https://www.geeky-gadgets.com/morphi-ipad-app-makes-3d-design-on-a-tablet-even-easier-20-01-2015/
Maybe you prefer to use a tablet over a computer; which is more mobile and easier to take anywhere with you. This need has been answered by a New York-based startup and their mobile app Morphi.
It is easy to learn and it's popular in American schools to teach kids 3D modeling. You can make a simple project or choose one from decorative and functional models available in the library. The application is free, however additional charges apply for specific models and tools. For schools, the software costs $9.99.
3D Slash
You probably have heard or even played Minecraft. This iconic game is based on blocks. This was an inspiration for 3D Slash, where you delete blocks to achieve the shape of your model. One option is to trace an image, or you can create a basic shape and then sculpt it by deleting and adding blocks. The accuracy in this software is 0.1 mm which is enough for simple, but functional 3D models. This software fast and easy to learn additionally can be quite fun when deleting the blocks.
SelfCAD
https://www.3printr.com/tinkercad-vs-selfcad-two-great-3d-softwares-5346915/
This is one of the latest arrivals in the 3D software family. It was only released this year, but it's already very popular in American schools. Why? Because it's very user-friendly and one of the easiest 3D modeling software for beginners out there.
Several options allow for sculpting, modeling and slicing the objects. SelfCAD is based on SaaS learning, therefore an experienced user should not have problems getting started. There is a free trial offered, and if you decide to buy it, it's only $9.99/ month.
If you want to take your 3D modeling skills to another level later
SketchUp Free
https://magazine.renderosity.com/article/3701/say-hello-to-sketchup-free-
SketchUp is very well known, especially in the architecture, design and filmmaking industry. SketchUp Free is a more simple version of SketchUp. It is a web-based software with easy tools. Getting started is simple as the user face of SketchUp Free is user-friendly and clear.
When you polish up your basic 3D modeling skills, you can then invest in the pro version of SketchUp, which is very powerful, capable of designing huge and complex models. You can discover it with our tutorial.
OnShape
https://www.onshape.com/press-release/featurescript
For non-commercial and educational use, OnShape is available for free. This software is quite special, aimed especially to produce technical and spare parts. Since it's a CAD software, you will learn how to sketch basic geometrical shapes and then turn them into 3D models by options such as extrusion. This is definitely more technical CAD software.
Fusion 360
Fusion 360 is one of our favorite CAD software. Developed by Autodesk, it is widely used by industrial designers. While it is powerful and capable of very complex 3D models, it is also a great option if you know a little bit of the basics. You can get to know the primary tools with our tutorials, where we explain step by step how to design a 3D printed turbine, functional threads, and a pipe fitting.
FreeCAD
FreeCAD is a great alternative to sometimes pricey software. It is a professional CAD software with a great set of tools to design mechanical parts. FreeCAD is not only free but also open source with a large community that contributes to improving the program. You can discover it a bit more with our tutorial to create interlocking parts, where we made 3D models using FreeCAD.
Sculptris
This software definitely counts as one of the easiest 3D modeling software. Without any previous experience, we created a Sculptris tutorial for you, and the experience was surprisingly simple and straight-forward.
Digital sculpting allows for application of different brushes, editing mesh and texturing your models. This is certainly much less technical or mechanical software, we would advise you to use it for more abstract models such as figurines.
ZBrush
This 3D modeling software can be used for both 2D drawings and 3D models. A lot of its options overlap, which was designed on purpose. This means that turning a 2D image into a 3D design is quite simple. ZBrush is also great because it doesn't require a powerful graphics card, which is an important aspect you should consider when deciding which of the easiest 3D modeling software is the best for you.
Cinema 4D
Easiest 3d Modeling Software Free Trial
Cinema 4D aims to be fast and easy at the same time. It is widely used by professionals, but simple enough to learn for beginners. Customizable User Interfaces make it more personalized and you can have all the tools you need in one place. A lot of experienced users claim this software deals with various tasks much faster and 3D models are easier to edit than in some other 3D modeling software.
Modo
Thanks to a wide range of powerful 3D tools Modo is great for modeling, rendering, and 3D animation. The editing options are intuitive and simple making Modo one of the easiest 3D modeling software. You can start learning it with our free tutorial.
Blender
Last, but not least in this category of the easiest 3D software, Blender. Blender is very popular across different industries. It is free and open source. Blender is a great start if you want to stay in the 3D modeling world. From 3D models for 3D printing to rendering 3D animation, Blender has a top quality set of tools for different needs. Check out our tutorial and start 3D modeling right now!
Easiest 3d Modeling Software Free Games
Editing 3D models
MatterControl
https://github.com/MatterHackers/MatterControl
This open source and free software allows for editing models and also creating them. If you're totally green when it comes to 3d printing, MatterControl will be a great start to get familiar with basic commands and terms.
Meshmixer
Another product from Autodesk, you can very easily repair, optimize and edit your 3D models. It is so simple you can learn most of the tools by just playing around. However, if you need guidance, you can learn it with our tutorial. Meshmixer is free and will quickly help you to adjust 3D models.
Online tools
A fast and simple way to fix some issues in your 3D model is also Sculpteo website. You don't need to download or learn any software. All you have to do is upload STL files and the website will mark for you the problems and propose several solutions.
Have you decided yet?
Deciding which program is the easiest 3D modeling software might be hard, but we hope this blog post gave you a lot of options to choose from. Are you going to try more basic programs such as Thinkercad or will you invest in your 3D modeling future with Blender? Share with us your experience in the comments!
3D printing your 3D models is even easier than learning how to 3D model! With online 3D printing services like Sculpteo, you just need to upload your file. You will get an instant quote and fast delivery.
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