myminifactory · Characters & Creatures
Gentex SPH‑4 U.S. Army Helicopter Pilot Helmet – 3D Printable Model
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This 3D printable model is based on the Gentex SPH‑4, a historic U.S. Army helicopter flight helmet originally introduced around 1970. The SPH‑4 was designed for sound protection, featuring a lightweight composite shell, a thick energy‑absorbing liner, and classic aviator-style components. 3D printing settingsPrint Technology: FDM (PLA, PETG) or Resin (for finer details) Material: PLA: Easy to print, good for display PETG/ABS: More durable and heat-resistant Layer Height: 0.15–0.2 mm (stand