If you have a 3D printer, sooner or later you’ll want to design your own parts instead of downloading someone else’s. The three CAD programs people ask about most are SOLIDWORKS, Autodesk Fusion, and Onshape. All three are capable parametric modelers that export print-ready files, but they differ a lot in cost, platform, license rules, and what they’re best at. This comparison will help you choose the right one for 3D printing.
Pricing and plan limits change frequently. Check each vendor’s site for current terms. Updated September 2026.
Quick Verdict
- Choose Fusion if you’re a hobbyist who wants one tool for modeling, organic shapes, and even CAM, on Windows or Mac, and your projects are personal.
- Choose Onshape if you want to design on any device (including a Chromebook or iPad), collaborate easily, and don’t mind that free-plan documents are public.
- Choose SOLIDWORKS if you’re a student or aspiring engineer who wants the industry-standard skill set and certifications like the CSWA, and you have a Windows computer.
Side-by-Side Comparison
| SOLIDWORKS | Autodesk Fusion | Onshape | |
|---|---|---|---|
| Platform | Windows desktop | Windows and Mac desktop, cloud-connected | Web browser (any OS) plus mobile apps |
| Free or low-cost option | Free Student Edition for eligible students; Makers about $48/year | Free Fusion for Personal Use for qualifying hobbyists | Free plan with public documents |
| Hobby license limits | Non-commercial use | Non-commercial, limited active documents, some features locked | Documents are public, non-commercial |
| 3D print export | STL, 3MF, and more | STL, 3MF, and direct send to many slicers | STL, 3MF, and more |
| Organic and freeform shapes | Surfacing tools, steeper learning curve | Strong, with T-spline Form modeling | Good surfacing and custom features |
| Collaboration | File-based, or cloud through 3DEXPERIENCE | Cloud projects and sharing | Best in class, real-time multi-user editing |
| Career value | Highest in traditional manufacturing | Popular with startups and makers | Growing fast, especially in education |
| Certification | CSWA, CSWP, CSWE | Autodesk certifications | Certified Onshape Associate and Professional |
SOLIDWORKS for 3D Printing
SOLIDWORKS is the long-standing standard for mechanical design, and the modeling habits you build in it transfer directly to engineering jobs. For 3D printing, it handles precise functional parts very well: enclosures, brackets, fixtures, and mechanisms. You can export STL or 3MF files directly, and tools like draft analysis, thickness checks, and topology studies for generative design help you design lighter, printable parts.
The downsides for hobbyists are platform and cost. Desktop SOLIDWORKS runs only on Windows. That said, access is easier than it used to be: the Student Edition is free for eligible students as of July 2026, and SOLIDWORKS for Makers costs about $48 per year for personal projects. See how to get SOLIDWORKS for free or cheap for details.
Autodesk Fusion for 3D Printing
Fusion is the favorite of many 3D printing hobbyists because it combines parametric modeling, freeform T-spline sculpting, rendering, and CAM in one program that runs on both Windows and Mac. The Form workspace makes it easier to model organic shapes, such as ergonomic handles or figurines, than in most traditional CAD tools. Fusion can also send models straight to popular slicers.
The free Fusion for Personal Use license is generous but has limits: it’s for non-commercial use by qualifying individuals, it caps the number of active editable documents, and some advanced features such as generative design and advanced simulation require a paid subscription. If you start selling your designs, you’ll need to move to a paid plan.
Onshape for 3D Printing
Onshape runs entirely in a web browser, so there’s nothing to install and it works on Windows, Mac, Linux, and Chromebooks, with apps for phones and tablets. It was created by several of the people who originally built SOLIDWORKS, so its modeling approach will feel familiar if you move between the two. Version history, branching, and real-time collaboration are built in, which makes it great for classrooms, robotics teams, and group projects.
The free plan’s big trade-off is privacy: documents on the free plan are public, so anyone can find and copy them, and commercial use isn’t allowed. For open-source hobby projects that may not matter. For anything proprietary, you’ll need a paid plan. Onshape also has its own certifications. See our guide to the Certified Onshape Associate exam.
Tips for Designing 3D Printable Parts in Any CAD Program
- Export in millimeters. Most slicers assume millimeters, so a part exported in inches can come in 25.4 times too small.
- Use 3MF when you can. It carries units and more model information than STL.
- Design for your process. Keep overhangs under about 45 degrees for FDM printing, add chamfers instead of fillets on bottom edges, and add clearance (often 0.2 to 0.4 mm) between parts that need to fit together.
- Control your export resolution. Too coarse and curves look faceted. Too fine and files get huge without any visible improvement.
- Print a test piece. For snap fits and threaded holes, print a small test coupon before committing to a long print.
Which Should You Learn First?
If your goal is an engineering career, start with SOLIDWORKS, especially now that the Student Edition is free, and consider earning the CSWA. If your goal is making things at home on a Mac, Fusion is the most flexible free choice. If you want to design from any device or work with a team, Onshape is hard to beat. The good news is that parametric modeling skills transfer. Learning one makes the others much easier.
For a look at how these programs compare on price, see our CAD software pricing guide, and for an earlier head-to-head, read the battle of MCAD: SOLIDWORKS vs. Onshape vs. Fusion 360.
Learn CAD Faster
SolidProfessor offers structured video courses for SOLIDWORKS and other CAD tools, including Onshape courses. 3DEngr.com readers get 25% off a personal membership with promo code 3DENGR25. You can also browse our free CAD and 3D printing tutorials.
Frequently Asked Questions
Which CAD software is best for 3D printing beginners?
For most hobbyists, Fusion for Personal Use or Onshape Free is the easiest free starting point. Students who want engineering careers should consider SOLIDWORKS, since the Student Edition is now free for eligible students.
Is Onshape as good as SOLIDWORKS?
For most part and assembly modeling, Onshape is comparable, and it’s stronger for collaboration and device flexibility. SOLIDWORKS has a deeper ecosystem of add-ins and is more established in traditional manufacturing.
Can I use Fusion for free if I sell 3D prints?
The free personal license is for non-commercial use by qualifying individuals. Check Autodesk’s current eligibility rules, and move to a paid plan for commercial work.