Ruby loopy

建议使用0.2喷嘴 0.1层高打印 本人用的0.4喷嘴0.16层高注意要加支撑（推荐树形）有orca 3mf文档（彩色）Suggest using a 0.2 nozzle with a 0.1 layer height to print my own 0.4 nozzle with a 0.16 layer heightPay attention to adding support (tree shape is recommended)Orca 3mf document (in color)