Can You 3D Print Car Parts?
What car parts can and can't be 3D printed, which materials suit under-bonnet and interior use, and where to get them printed in Australia.
Yes — Australians are 3D printing car parts every day, especially for older cars where the manufacturer no longer supplies spares. The trick is knowing which parts are realistic candidates and which ones aren't. Here's the practical breakdown.
Parts that 3D print well
Interior trim clips and fasteners — the little plastic clips that hold door cards, dashboards and trim panels together. Cheap to print, easy to fit, and Toyota/Holden/Ford simply don't supply many of them anymore.
Dashboard knobs and switches — A/C knobs, radio knobs, vent louvres, window winder handles. PETG or ABS works well.
Vent surrounds, glove box latches, sun-visor clips, seatbelt guide loops.
Boot/hatch trim, parcel shelf brackets, light-bezel surrounds.
Custom phone mounts, dash trays, cup-holder inserts, sunglasses holders.
Engine bay clips and hose holders — in ASA or nylon for heat resistance.
Restoration parts for classic cars where originals are unobtainium.
Parts that don't 3D print well
Structural or safety-critical parts. Anything that affects steering, suspension, brakes, airbags or restraint systems should not be 3D printed.
Parts that see continuous high temperatures (exhaust adjacency, turbo housings) — these need metal printing or traditional manufacturing.
Anything that needs to seal against fuel, brake fluid, oil or coolant long-term. Some short-term emergency repairs work, but it's not a permanent solution.
Gears or load-bearing parts under repeated heavy load — possible with SLS nylon or carbon-fibre nylon, but get expert advice first.
Material choice for car parts
Interior trim clips: PETG. Tough, cheap, easy.
Dashboard, sun-visible interior: ASA. Won't yellow or warp in an Australian summer dashboard (which routinely hits 80 °C).
Under-bonnet, near heat: ABS, ASA, PC or nylon depending on temperature.
Flexible grommets, bushings, vibration mounts: TPU 95A.
Engineering parts under load: SLS nylon or carbon-fibre PA-CF.
Avoid PLA for any car part — it will soften and deform in a hot car within hours.
How to source car parts
Search Printables and MakerWorld for your make/model — there's a huge community modelling Holden, Ford, Toyota, Mazda and VW interior parts. If nothing exists, an Australian maker can reverse-engineer from your old broken clip or from photos.
Post the job on Printit4Me with photos, the make/model and year of your vehicle, and a note on where the part lives (interior, dashboard, under bonnet). Local makers will quote within hours.
FAQ
Is it legal to 3D print car parts in Australia?
Yes, for personal use. Be aware that structural or safety-related modifications to a registered vehicle may need engineering certification. Trim clips and interior parts are no problem.
Will a 3D printed part pass a roadworthy?
Cosmetic and interior parts: yes, no issue. Anything structural would need to be assessed by a qualified engineer.
What about classic car restoration?
3D printing is incredibly popular in classic car restoration in Australia. Reproduction badges, trim, knobs and switches that are otherwise unobtainable are routinely 3D printed and finished to look original.
Ready to get something printed?
Post a job and Australian makers will quote you within hours.