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Fitment, styling reviews, show mock-ups, master patterns.
Process · SLA
SLA Resin Prototypes for Automotive Aero Fitment
High-detail SLA resin for styling and fit checks before you commit to ASA/PA-CF production or CNC validation.
SLA excels at fine detail and smooth surfaces for fitment masters. It is not a year-round outdoor production choice — use it to lock geometry, then move to FDM ASA/PA-CF or CNC for durability testing.
Avoid when
Long sun/heat duty on a daily driver — resin will not match ASA outdoors.
Next step
After SLA sign-off, reprint functional parts in ASA/PA-CF or machine critical interfaces.
FAQ
SLA or CNC for a test lip?
SLA for fast shape/fit; CNC when you need longer road or track validation in engineering plastics/metal.
Can SLA parts go on track?
Only for very short evaluation — not for sustained load/UV. Plan a durable reprint.
Related reading?
See our SLA vs CNC Insights article for decision criteria.