Product Genius, the Podcast for Inventors, Entrepreneurs, and Startups
Honest advice for inventors—with obscure cultural references included at no extra charge.
Episode
206
I'm an Inventor, Should I Learn CAD? (Flash of Genius)
Should inventors learn CAD software? Noah explains when learning computer-aided design is worthwhile, why CAD is a valuable communication tool during product development, and why knowing CAD alone doesn’t make someone an engineer. Learn how CAD fits into developing an invention and when to invest your time versus relying on experienced product developers.
Core Topics for this episode:
- Inventor Education
- CAD & Design
Key Takeaways Include:
Listen here:
Episode Blog
Should an Inventor Learn CAD?
Computer-aided design software can be incredibly empowering. It allows an inventor to turn rough ideas into measurable geometry, visualize assemblies, and communicate with engineers, prototype shops, and manufacturers.
It can also inspire a dangerous thought: “Now that I have downloaded CAD software, I am basically an engineer.”
In this Flash of Genius episode, Noah McNeely and Steven Julian discuss when learning CAD is valuable, where its limits lie, and how inventors can use it without confusing software proficiency with product development expertise.
CAD Is a Communication Tool
For many inventors, the greatest benefit of CAD is improved communication. A model can clarify proportions, feature locations, interfaces, and movement better than a verbal description or napkin sketch.
Even basic CAD ability can help an inventor:
- Explore form and layout
- Create rough parts for 3D printing
- Communicate revisions
- Understand dimensions
- Review professional design work
- Participate more intelligently in development decisions
That can save time and reduce misunderstandings.
Modeling Is Not the Same as Engineering
CAD software will happily allow you to draw something impossible, unsafe, unmanufacturable, or unnecessarily expensive. It does not automatically know that a wall is too thin, a snap feature will break, a mechanism cannot be assembled, or a tolerance stack will cause binding.
Learning CAD is similar to learning how to use a word processor. It gives you the ability to write, but it does not automatically make you a novelist, attorney, or technical author.
Noah’s point is not to discourage inventors. It is to protect them from false confidence. Steven’s role, naturally, is to imagine that a few online tutorials might qualify someone to redesign an aircraft by the weekend.
Choose the Right Level of Learning
Not every inventor needs advanced parametric modeling. The appropriate depth depends on your goals.
Basic level:
Learn to view, rotate, measure, and comment on models. This alone can improve collaboration.
Intermediate level:
Create simple parts, assemblies, and prototype geometry. Useful for hands-on inventors who iterate frequently.
Advanced level:
Develop complex surfaces, mechanisms, production details, and manufacturing documentation. This usually requires substantial training and practical experience.
Your time has value. If learning CAD delays customer validation, fundraising, or other responsibilities only you can perform, outsourcing may be smarter.
Select Software Based on the Workflow
Popular choices range from free tools to professional systems. The best software is not automatically the one with the most features. Consider:
- File compatibility with collaborators
- Type of products you are designing
- Availability of training
- Cloud collaboration
- Cost
- Parametric versus direct modeling
- Suitability for mechanical or surface design
A simple program may be ideal for early concepts and inadequate for production engineering. A sophisticated system may be powerful and overwhelming.
Know When to Bring in a Professional
Professional support becomes especially important when the product includes:
- Safety-critical loads
- Complex mechanisms
- Tight tolerances
- Injection molding
- Electronics integration
- Regulatory requirements
- Detailed manufacturing documentation
An inventor’s model can still be valuable as a starting point. The professional can evaluate, rebuild, or refine it while preserving the inventor’s intent.
Avoid Becoming Attached to the Model
One unexpected risk of learning CAD is falling in love with the first geometry. Because the inventor invested hours creating it, suggested changes may feel personal.
Remember that the model is not the invention. It is one representation of the current thinking. Good development requires revision.
The Product Genius Take
Yes, many inventors should learn some CAD. It can improve communication, speed early experiments, and make the development process more understandable.
But learn it as a tool, not as a credential. Use it to explore and communicate. Recognize where engineering, industrial design, and manufacturing experience become necessary.
The goal is not to prove that you can model every part yourself. The goal is to move the invention forward with the right combination of knowledge, tools, and professional help.
Or, read the full transcript here:
Steven Julian
It's Flash of Genius. It's a quick hitting topic with Noah McNeely from Product Quick Start. Noah, today's question. I'm an inventor. Should I learn CAD? Go.
Noah McNeely
Well, as with most of my answers, it depends. Absolutely. So I think it depends on your expectations. You can put it to you this way. You can read the manual on your stove or your oven and you can know how to cook some things. That does not make you a chef or even a great cook. And the same is true with CAD. So you can learn CAD by watching YouTube and there's all sorts of free resources. I think that's great. I actually love it when some of my clients do know enough about CAD to build their basic idea into the software and they can bring it to me and I can start there.
I get a rough idea. I can spin stuff around. I get it. However, if your expectation is you're going to learn CAD and you're going to be able to design a product ready for manufacturing, That's probably not true. Now, to be fair, you could probably watch enough YouTube videos over the course of. a few years to really get there, but you're not going to get there quickly. So should you learn CAD if you want to and if your expectations are correct, learning CAD as a non-experienced, non-engineer, you're not going to be able to engineer products right out the gate with that.
Steven Julian
I'm going to ask you a follow-up question that might be very, very unfair. Because you said it kind of depends, but any inventor, is there even just a basic understanding of CAD that you think almost any inventor should at least... Dip their toe in the water, kind of understand what CAD is about and what it does. Talk a little bit. Can you come to some minimal, viable knowledge base of CAD?
Noah McNeely
Absolutely. And you can do that without spending any money. There's actually some free CAD software out there. There's one that's appropriately named Free CAD that you can download and you can do a lot of the basic stuff with it. Now, it's not going to have the same power as software like I use or other professionals would use. But it's really good for learning and understanding what CAD can do, what it can't. do. And of course, you know, there's a whole range of costs. You can go to the free stuff, which is not going to necessarily have all those features that someone like I would use.
There's also some sort of mid-cost things like $500 a year. You can get a program called Fusion 360, which is actually a really nice program. Now, the stuff I use, that's a couple thousand dollars a year. Unless you've just got that money lying around and you want to throw it at something, I don't think you need to do that.
Steven Julian
And to them, the main benefit of them even having a minimum knowledge base of CAD is it kind of helps them and help you in the product where you don't have to maybe educate them as much or they can bring something or they, you know, what's the benefit to you and to their project to even have a minimum?
Noah McNeely
It's really a communication tool. So that's, it's not, I should say, it's not so much about knowing what CAD is capable of, but it's another way you can communicate with me. In three dimensions. So you can draw sketches all day. long. And usually that's enough for me to understand things, but I have to put it in CAD and then show it back to you in 3D if you say, yeah, that's what I meant. But if you do that up front, that's a little bit less work I have to do. So probably a little bit less I have to charge you to do it.
Steven Julian
So for that minimum knowledge base, they need to give themselves a few hours. They need to give themselves a little bit of time. They need to be able to kind of go in the software and fool around a little bit. And it should. Give yourself a little bit of time.
Noah McNeely
Yeah, you can learn all the basic stuff with YouTube videos. Just find the YouTube videos about whichever software you bought or downloaded, and you can get started really well.
Steven Julian
And I get to be the slightly annoying co-host and add that the free one is called FreeCAD, F-R-E-E-C-A-D, not FreakAd.
Noah McNeely
That's great. There are other free softwares as well. I just brought that up because it's easy to remember.
Steven Julian
And it's free. Noah McNeely from Product Quick Start, the flash of. genius from Product Genius. Thank you very much.
Noah McNeely
Thank you.