Rodin's The Thinker: Enlarging & Bronze Casting Decoded
罗丹《思想者》的放大与青铜铸造技术解读
标签：罗丹, 思想者, 点刻放大, 失蜡法, 版数制度
罗丹 1880 年起创作《思想者》，初稿为约 70 cm 石膏像；1902–1904 年由工匠 Henri Lebossé 以点刻放大机（pointing machine）放大到 180 cm，再交巴黎 Rudier 铸造厂以失蜡或砂型浇注青铜。原版铸件壁厚 4–6 mm，身体与底座分段铸造后焊接，表面以氧化物与硫化物做棕绿热着色，罗丹亲自验收每炉 patina。他的「多版原作」商业实践直接推动了后世雕塑版权与版数（édition）制度，每版铸件均在侧面铸有铸造厂印记。
Rodin developed The Thinker from about 1880 as a ~70 cm plaster; in 1902–04 craftsman Henri Lebossé enlarged it to 180 cm with a pointing machine, and the Rudier foundry in Paris cast the bronze by lost-wax or sand casting. Original casts run 4–6 mm walls, cast in sections (body and base) and welded, then hot-patinated with oxides and sulfides to the brown-green finish Rodin personally approved, pour by pour. His practice of authorizing multiple originals shaped the modern sculpture copyright and edition system, each cast bearing the foundry's side stamp.