STEP Export (Fusion 360)
Exporting Fusion 360 designs to STEP (AP203 / AP214 / AP242) for vendors, suppliers, or other CAD systems.
Definition
File > Export > STEP. Options control which bodies/components are included, whether to export hidden geometry, and the STEP application protocol (AP203 vs. AP214 vs. AP242). AP242 is the modern recommended choice for parts including PMI (Product and Manufacturing Information).
Why it matters
STEP is the safest export format when sending models to a CAD system you don't control (vendor's SOLIDWORKS, Inventor, NX, or generic CAM software). It preserves geometry but discards Fusion-specific parametric history.
Common pitfalls
- Exporting AP203 to a recipient who expected AP242 with PMI — PMI is lost.
- Exporting an assembly as one STEP file vs. separate STEP per component — recipient gets either flat geometry or proper assembly tree.
- Forgetting to set the export units — recipient gets the wrong scale.
This concept is a core structural element of the Fusion 360 drafting and engineering environment developed by Autodesk. Autodesk's cloud-native unified design-and-make platform — parametric/direct hybrid modelling, CAM, sheet metal, simulation, electronics, and generative design in one subscription.
Relevant Fusion 360 FAQs
❓ Is Fusion 360 truly free for personal use?
Yes, but with restrictions. The personal-use tier is for hobbyists with under $1k/year in revenue from Fusion-created work. It limits active documents (10 editable at once), removes simulation/generative-design/electronics/extensions, simplifies CAM (no 5-axis, no multi-setup), and has restricted export options. Autodesk has progressively narrowed the free tier; verify current terms before relying on it commercially.
❓ What's the difference between Fusion 360 and Fusion Industry?
There is no separate 'Fusion Industry' product as of writing. 'Fusion 360' is the unified product. Extensions (Manufacturing, Simulation, Generative Design, etc.) add capability. Autodesk has also branded vertical packages (Fusion 360 with Inventor capability) at times; consult current Autodesk pricing pages.
❓ Can Fusion 360 work offline?
Yes — with caveats. Fusion caches files locally and supports a 'work offline' mode for up to 2 weeks. Cloud render, generative design, electronics simulation, and forced sync features require connectivity. For continuous offline work, Inventor is a better fit.
⚡ Concept Self-Test
🎓 Recommended Practice Lessons
Step-by-step practical exercises and certification-aligned paths chosen by our editors to master this concept:
Fusion 360 Professional Design & Engineering Specialization
Autodesk Certified Professional - Fusion 360 Exam Study Guide & Mock Practice
🌳 Semantic Crossroads & Navigation Pathways
Trunk-Branch-Leaf ModelCore glossary, interactive graph, and domain-wide concept index.
Parent design environments and platforms implementing this method natively.