Here is the Galactic Republic Phase 2 Clone Trooper Armor from Galactic Armory and printed in PLA plastic and is unpainted. The 3D prints may have less detail than the supplied computer-generated renderings.
Phase 2 Clone Trooper Helmet - Galactic Armory - DIY - Painted
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DIY Phase 2 Star Wars Clone Trooper Helmet : Wearable. Ready to Paint