Radiator Duct Mold

Designed a 3D printed mold to produce a carbon fiber radiator duct for the UWFE cooling system.

Surface Modelling

DFM

Composites

Apr 2026

Apr 2026

What?

  • The 2026 vehicle switched from a rear to side-mounted radiator, requiring a custom duct to direct airflow and maximize cooling efficiency

  • A mold was needed to manufacture the duct in carbon fiber in-house to save costs and avoid outsourcing

  • The mold had to fit within the printer bed, maintain surface quality, and be easy to demould

How?

  • Surface modeled the mold in SolidWorks with draft angles, runoff flanges, and trim areas to ensure easy demoulding and a clean surface finish

  • I split the design into 3 parts to fit onto the printer bed, using press-fit pegs to connect them

  • The part was 3D printed in PETG, painted with mold release, and laid up with 2 plies of carbon fiber before demoulding

Results?

  • Produced a geometrically accurate duct that fit the front face of the radiator perfectly

  • Cut production times by 2+ weeks and reduced costs by over 50% compared to outsourcing

  • Enabled proper airflow to the side-mounted radiator which supported the cooling system's thermal targets for competition

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Designed & Built by Eason Sun

Designed & Built by
Eason Sun

Designed & Built by Eason Sun