自制的鲍登挤出机,配件:12mm 弹簧 adj 张紧器 MK7, MK8, 11mm 齿轮 624, 608, 604轴承 nema17 步进马达 3mm*10mm X 2 3mm*15mm X 1 624 4*15mm X 1 604 4*15mm X 1 轴承 tension nob 4*15mm X 1 4mm 螺母X 2