3D printing for automotive applications

Modern vehicles use hundreds of plastic components — clips, brackets, trim pieces, cable guides, duct connectors. Many of these are unavailable as genuine parts once a model is out of production, and aftermarket suppliers don't cover everything. 3D printing fills this gap.

Read our specific guide: When is PETG suitable for automotive parts?

Why PETG for automotive use?

A car interior is a surprisingly harsh environment for plastic parts:

Heat — Dashboards and enclosed spaces can reach 80°C+ on hot days. PLA softens at around 60°C and is entirely unsuitable for vehicles left in the sun.
Vibration — Constant mechanical vibration fatigues materials over time. PETG's better impact resistance and layer adhesion make it more durable in vibrating environments.
Moisture — Door cards, boot areas and underbonnet spaces see moisture. PETG doesn't absorb water or become brittle in damp conditions.
Oils and chemicals — PETG has reasonable resistance to oils, brake fluid and cleaning products that PLA would absorb and degrade under.

PETG is rated to approximately 80°C continuous use — suitable for most vehicle interior applications. It's not rated for direct engine bay or exhaust proximity applications, where temperatures may exceed this.

Common automotive applications

Interior trim brackets — Replacement clips and hidden mounting points for door cards, trim panels and dashboards
Cable management — Custom routing guides, saddles and clamps for wiring runs
Dashboard mounts — Phone holders, switch panels, aux equipment mounts custom-fitted to your vehicle
Boot and storage fittings — Custom organiser brackets, tool holders, load restraint points
Vent and duct adapters — Custom connectors for ventilation systems or equipment requiring ducting
Classic and historic vehicle spares — Parts for vehicles where OEM support has long ended

Fitment and tolerances

For parts that clip into existing sockets or mate with OEM fittings, dimensional accuracy matters. Our Bambu Lab printers hold tolerances of ±0.2 mm, which is adequate for most clip and bracket applications. We recommend a small quantity test print before ordering a full batch to confirm fitment.

Classic car and historic vehicle parts

Older vehicles present a particular challenge — genuine parts are either unavailable or extremely expensive, aftermarket options may not exist, and the vehicle deserves better than making do. If you can take measurements or send photos of a broken component, get in touch — we may be able to create a model and print a replacement.