NOCTUA Fan Guard (5 Patterns) Optimized Version, Better for Printing

12/14cm各两种图案。共5种按需选择相较于原版优化了图案，降低了打印难度（原版对打印机的回抽及流量精确性要求更为严苛）更利于FDM打印机打印。已联系NOCTUA(猫头鹰)官方获得创作授权许可 Two patterns for each of the 12cm and 14cm sizes. A total of 5 patterns to choose from as needed.(The original version has stricter requirements for the printer's retraction and flow accuracy)The patterns have been optimized compared to the original version, reducing printing difficulty and making it more suitable for FDM printers.Have contacted NOCTUA (owl) official to obtain creative authorization.