How to Learn Modeling for 3D Printing – Tips for Designing


Modeling for 3D printing can seem like a skill that only a few can accomplish, but it’s a lot simpler than you think. It’s not too difficult to learn the basics of 3D modeling so you can design your 3D prints from scratch and create them.

So, if you have been wondering how to design 3D models for 3D printing, you are in the right place.

In this article, I’ll give you some advice and key tips on how to learn 3D modeling to improve your overall 3D printing journey. I’ll also point you to some of the popular software people use for both basic and advanced creations.

So, strap in, and let’s get you started on your creative journey.

How Do You Design Something For 3D Printing?

The first and most important part of 3D printing is the design phase. Any good 3D printed model starts from a sound design plan.

To design something for 3D printing, choose your ideal design application such as Fusion 360 or TinkerCAD, create your initial model sketch, or import shapes to modify and edit into a model.

Nowadays, many online repositories are offering ready-made 3D models for you to download and print. That might seem like a godsend for beginners to save them time, but sometimes, this will not be enough.

For example, let’s say you need 3D printed replacement parts for custom objects like mouth guards, you cannot find the 3D model in an online repository.

You have to design the 3D model yourself and print it. Luckily, the design process is fairly easy. You can learn how to make a model for DIY 3D printed parts in a short time with the right tutorial, and with some practice.

Let’s go through how we can prepare a model for 3D printing using the design steps on a beginner-friendly application like TinkerCAD.

Step 1: Visualize your design

Before you start modeling make sure you have a sketch, drawing, or figure of what you want to do. You can even import your sketches or drawings into the 3D modeling application to serve as a starting point.

Step 2: Create the 3D model’s outline using blocking

Blocking involves building up the 3D models using basic shapes. You can use shapes like cubes, spheres, triangles to form the rough shape of the 3D model.

Step 3: Add the details of the 3D model

After you’ve created the basic outline using blocking, you can now add the details. These include things like holes, chamfers, threads, color, texture, etc.

Step 4: Get the Model ready for 3D printing

After you’ve finished modeling and you’ve saved the project, you have to get it ready for printing. Getting the model ready involves adding rafts, supports, dividing the model into separate parts, and slicing. All this can be done in slicing applications like Cura.

Creating 3D models is very easy now. Before, 3D modeling was primarily a profession for specialists using large amounts of computing power. Not anymore.

Now, a wide variety of applications are available on virtually almost every technological platform. There are even apps on common handheld platforms like androids and iPads capable of making printable 3D models.

Now, let me show you how to choose the 3D modeling application that is right for you.

What Modeling Software Should I Use for 3D Printing?

Now that you know what goes into making a 3D model, let’s talk about the main tool you need to bring it alive, the modeling software.

For people with a low skill level or for students, I would choose TinkerCAD. People that have more complex requirements should use Fusion 360 to model 3D prints. Modeling sculptures are best done in the Blender application since you have more control over the design and surfaces

The applications above are just a few out of many available on the market for creating beautiful 3D models. These applications range from low-end applications for teaching to more advanced applications for creating detailed 3D models.

To maximize your 3D modeling experience, it’s best to choose the one that works for you. Here’s how.

How to Select A 3D Modelling Software?

Before you choose a modeling application, to begin with, you first have to consider a few factors. Let me take you through some of them;

  1. Skill Level: Skill Level is an important thing to consider when choosing a modeling application. While modeling applications have gotten simpler, some of the high-end ones out there still require quite a bit of computer know-how to use.

So, be sure to choose one well-tailored to your skill set.

  1. Modeling Purpose: 3D modeling is quite popular in many fields such as education, engineering, and even art and design. All these fields have modeling applications available for them with specific built-in capabilities.

To get the best out of your work or modeling experience, it’s best to learn with a modeling application popular in your field.

  1. Community: Finally, the last factor to consider is community. Most users often overlook it, but it’s just as important as the rest. Learning any new 3D modeling software can be tough, but the presence of a vibrant, helpful online community can be a big help.

Be sure to choose a modeling application with a large user base or community so you can ask for help and pointers if you get stuck on your journey.

Now that you know what to look for, let’s look at some of the best 3D modeling software on the market. To make your decision easy, I’ve divided the 3D applications into three main categories:

Best 3D Modelling Software for Educators or Beginners

  1. TinkerCAD
  2. SketchUp
  3. SolidWorks Apps for Kids

Best 3D Modelling Software for Engineers

  1. Autodesk Fusion
  2. Shapr3D

Best 3D Modelling Software for Artists

  1. Blender
  2. Sculptura

TinkerCAD

Price: Free || Operating System: (Windows, Apple OS, Chromium) || Difficulty: Beginner.

If you are a total beginner looking to start learning 3D modeling from the basics, TinkerCAD is one of the best apps to use. It is a learning-focused application that builds up the learner’s solid geometry skills using building blocks and solids interaction.

It is a free, lightweight browser-based application that can run on almost any device. This means that with access to the internet and a decent PC, you can immediately start creating 3D models.

There is even an app available on the Apple app store for those that prefer to create on devices like the Apple iPad.

Another great thing about TinkerCAD is that it is not only about 3D modeling. The software comes with a full suite of other tools for designing with code blocks and simulating programming circuits.

These features make it the premier choice for STEM educators who want to introduce their wards to basic design principles. It’s also pretty good for adults who want to start learning the fundamentals.

SolidWorks Apps for Kids

Price: Free || Operating System: (Windows, Apple OS, Chromium) || Difficulty: Beginner

The SolidWorks apps for kids are also another great way to learn and practice the design principles behind 3D modeling. It is currently retooling the way STEM educators approach and teach 3D modeling.

Coming from the same publishers that built the industry mainstay, SolidWorks, this app places focus on the entire creative journey. It doesn’t just dwell on 3D modeling alone. Rather, it provides several apps that guide users from the idea conception stage to the final printing process.

For those wondering if this might be a lot to take in, don’t worry. Dassault provides a variety of videos and a learning curriculum to help maximize the app’s utility.

It is a cloud-based application, which means it is available on just about any PC with an internet connection. iPadOS users are also not left out as there is support for it on the iPad Pro.

SolidWorks apps are also free and provide a pretty comprehensive lesson plan which makes it ideal for kids and beginners.

SketchUp

Price: Free trial version available, Pro: Plans from $55 to $699 || Operating System: Windows, Apple OS, Chromium || Difficulty: Intermediate

All the applications we’ve looked at up till now are great for learning and beginners. However, they lack certain features required to create advanced 3D models. SketchUp provides these features in a simple, easy-to-use package.

SketchUp is one of the most popular 3D modeling software on the market. Its main selling point is its intuitive, easy-to-use interface. Users can easily visualize, create and upload 3D models easily using multiple tools and preset models.

As a result, professionals from plenty of fields use this software to create models ranging from buildings to car parts. It is also capable of creating 2D drawings for things like engineering plans.

Another great perk of SketchUp is its great online community. You can get started with the software, thanks to the tutorials available. If you get stuck, you can also ask questions on a variety of user forums.

To quickly get started with the software, you can go through this helpful video.

SketchUp comes with a cloud-based, web browser version for free. Users can create and upload their designs to the cloud repository called Sketchup Warehouse.

For a fee, users can access a desktop version that contains additional functions and capabilities.

Autodesk Fusion 360

Price: Free trial version available, Pro: $495 yearly || Operating System: Cloud-based, Windows, Apple OS, Chromium, iPad OS || Difficulty: Intermediate to Advanced

Autodesk Fusion 360 is currently one of the heavyweight 3D modeling programs dominating the market right now. It is the software of choice for professionals and hobbyists looking to create high-quality 3D models.

Fusion 360 prides itself as a one-stop shop for design, manufacturing, and everything in-between. It provides CAD, CAM, CAE tools for product engineers to model, simulate, and eventually manufacture their designs.

No matter what field you are into, Autodesk Fusion 360 has something built-in for you. Whether you need to design electric circuits, simulate the structural strength of your 3D printer part, or even track and manage your project’s progress, it’s got you covered.

The entire Fusion 360 package is cloud-based which is especially helpful in collaborative workplaces. With this, you can easily design, share and collaborate on different projects with a team.

Autodesk offers a free 1-year license for students, educators, hobbyists, and small businesses. It also provides a whole suite of interactive lessons to get you started with the software.

For professionals, the full license starts at $495/year.

Shapr3D

Price: Free trial version available, Pro: Plans from $239 to $500 || Operating System: iPadOS, Apple OS|| Difficulty: Intermediate

This next one is purely for iPadOS users. Like we said earlier, new 3D modeling apps are springing up on different platforms taking advantage of new hardware and software. One particularly impressive software among them is Shapr3D.

Debuting on the iPad in 2015, Shapr3D has carved out a niche for itself as a simple, lightweight, yet effective 3D modeling application. Thanks to its initial focus on the iPad, it is perfectly optimized for professionals on the go.

To make it even more effective, Shapr3D gives users the ability to use hardware tools like the Apple Pencil. As a result, users can visualize their ideas simply by putting pencil to paper (albeit digitally).

Not a fan of the iPad? Don’t worry. Shapr3D has a Mac version which offers more or less the same functionality.

Shapr3D offers a free license for educators, while individuals and businesses can buy ranging from $239 to $500 / year.

Blender

Price: Free || Operating System: Windows, Apple OS, Chromium || Difficulty: Intermediate to Advanced

Going down this list, you might see a slightly worrying trend, 3D modeling software is expensive. Most full-featured 3D modeling packages come at a premium price, and this might not be ideal for most hobbyists.

However, do not fear, Blender is here to save the day. Developed as an open-source community project, Blender has gained widespread acceptance as a way to get reliable, studio-quality models without breaking the bank.

The software offers several incredible features for a free, open-source application. Apart from your basic 3D modeling, users can sculpt, animate, render, and even perform texturing on their models.

It even provides additional features for video editing and cinematography purposes.

Adding to its packed resume, Blender has a wonderful, interactive online community. They have almost 400K members on Reddit alone. So, no matter the type of help you need, you can always get it instantly.

The only drawback to Blender is that it can be fairly hard to master, especially for newbies. But, since it has been around for a while, there are plenty of resources to help in mastering it quickly.

Sculptura

Price: $9.99 || Operating System: Apple OS, iPadOS || Difficulty: Intermediate

Last but not least, we have Sculptura, an iOS, and iPad OS-based sculpting tool. It uses digital sculpting which is a novel approach to 3D modeling.

In a nutshell, digital sculpting enables users to manipulate a digital object quite easily. Using tools like push, pull, pinch smooth, you can manipulate it as if it were made of a real-life object like clay.

As a result, using Sculptura, users can create highly photorealistic models. It also provides a clean, intuitive interface for artists to create with. This can be refreshing compared to other modeling software that tends to be somewhat clunky and code-oriented.

Even better, with tools like Apple Pencil and Sculptura’s voxel engines, users can create models as easily as putting pen to paper.

In case you want to take your creations to a more powerful platform, it is also available on the Apple Mac for the same price.

Sculptura costs $9.99 on the Apple app store.

Tips for Designing 3D Printed Models & Parts

Okay, I’ve given you some tools to help you on your creative journey, now it’s time to end this article with some sage advice. Seriously though, 3D modeling for 3D printing is a different beast, and using some of these tips, you can conquer and master it.

So, here are the tips:

Invest in A Good Device: Although processing power requirements have decreased over the years, for the best results, you still need decent hardware for 3D modeling. For the best quality models, be sure to use a PC or iPad with a great graphics processor.

Buy Good Support Hardware: Support hardware like the Apple Pencil and a graphics tablet can make a world of difference. Getting them can help overcome the limitations posed by keyboards, mice, etc.

Divide Large Models into Multiple Parts: Most desktop 3D printers do not have the build space to handle large volume prints. It’s best to design and print them separately then assemble them. You can also design press-fit or snap-fit connections to make this easier.

Minimize the Use of Sharp Corners: Sharp corners can cause warping in the final print, especially if you use an FDM printer. So, it’s best to replace them with rounded corners to reduce the probability of warping occurring.

Avoid Overhangs and Thin Walls: If you are okay with using supports, overhangs aren’t a problem. Just make sure you keep the angle smaller than 45⁰. Also, depending on your printer, thin walls or features can cause problems, so be sure to keep wall thicknesses to above 0.8mm.

Know Your Printer and Material: There are many printing technologies and materials out there. They all have different advantages and disadvantages, so before designing any part for printing you should be aware of all this.

Well, that’s all I have to offer you for now. I hope I’ve inspired you to pick up a 3D modeling course and start creating your models.

As usual, good luck on your creative journey.

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