Simulated operating upright model with gearbox

直立模擬作動直立模型+齒輪箱 simulated operating upright model+gearbox單純3D建模愛好者分享交流 請勿用於商業用途Purely for 3D modeling enthusiasts to share and exchange. Please do not use for commercial purposes.直立讓內部作動更易觀察非實際引擎V字下有說明書供下載需要零件M2X15螺絲及螺母X10PCS內徑7mm-10mm彈簧長度約7mm彈力勿太高(可自行修短拉開)黏著劑X1Need parts:• M2 x 15 screws and nuts, 10 pcs each• Inner diameter 7mm-10mm spring, approximately 7mm in length, with moderate tension (spring length can be adjusted by stretching)• Adhesive