Case study · Automotive & motorsport
How vapor smoothing helps 3D-printed rally car parts perform in extreme racing conditions
Rally racing pushes every component of a car to its limits. ABConcept set out to prove that 3D-printed parts could thrive there, equipping its Zephyr rally car with PA12 components printed on HP Multi Jet Fusion and finished with PostPro vapor smoothing.

- Customer
- ABConcept
- Industry
- Automotive & motorsport
- Application
- Rally car components
- Printing
- HP Multi Jet Fusion
- Material
- PA12
- Finishing
- PostPro vapor smoothing
- Published
Built for the stage
The Zephyr carried more than 100 PA12 components printed with HP MJF, and those parts faced more than 2,450 km of intense terrain at the Rallye du Maroc.
To meet the mechanical demands of high-speed, high-stress racing, ABConcept made PostPro vapor smoothing part of its workflow. The finishing step enhances durability, seals surfaces and improves resistance to wear, oil and debris, which makes it a key production step for motorsport applications.
The result
The combination of MJF printing and automated vapor smoothing shows how additive manufacturing can deliver strong, lightweight and reliable car components built for extreme conditions.
Results
Test your parts
Send us a part. See it smoothed.
We vapor smooth your own parts and send them back with the results. No cost to evaluate · Parts returned · Typical turnaround 2–3 weeks


