PLA
The proof model
- WHY CONSIDER IT
- Quick and cheap for checking a shape.
- WHAT TO WATCH
- Softens in heat. A good bench print says nothing about a parked car.
Was the final design checked in its real material?
MATERIALS & DURABILITY / THE PLAIN-ENGLISH GUIDE
Printing is how a part is made, not what it’s made of. A desk toy and a car part need very different plastics.
THE SHORT ANSWER
Yes, if the material, design and testing suit the job. Cars already use plastic clips, knobs and trim. A printed part still has to earn its own evidence; it doesn’t inherit the original’s.
FOUR MATERIAL FAMILIES / DIFFERENT JOBS
General properties, not a recommendation for your car. Grades vary.
The proof model
Was the final design checked in its real material?
Tough, with limits
How hot does this spot get, and what load does it carry?
Sun & heat resistance
Has the finished part been tested under heat and load?
Wear & repeated use
Is this exact grade right for the moisture and load?
CAPABILITY IS NOT QUALIFICATION
What to look for. Not a list of tests OCP3D has done.
THE MATERIAL
A datasheet describes one grade and one test piece. It helps pick a candidate, nothing more.
THE FINISHED PART
Wall thickness, layer direction and the mounting all change how a part behaves.
THE EVIDENCE
Fit, heat, wear and sun get checked on that version, in that material.
BEFORE YOU TRUST A PART
Some do. But cars are full of plastic clips, trim and knobs, and the job decides the material. OCP3D only makes non-safety-critical parts: never brakes, steering, restraints or structure.
The wrong plastic can. Ordinary PLA softens in a hot car; ASA holds up much better. The exact grade, heat, time and load still matter, so each part gets checked.
Material reference ↗It’s a real issue. Printed parts are weaker across their layers, so print direction and wall design have to suit the load. A good-looking print doesn’t prove strength.
Only from evidence on that version, in that material, in those conditions. OCP3D’s records are early; none yet proves long-term durability, so there’s no lifespan claim.
READ THE REFERENCES
Manufacturer guidance behind the general descriptions above; not a test result for an OCP3D part. Reviewed 8 September 2026.
Porsche’s parts are powder-printed (SLS); OCP3D prints with filament. An example, not an endorsement.