“The classical CF tube is made of prepreg. The inner part is made of undirectional prepreg and the surface is a layer of 3K woven prepreg.
The other CF tube with larger patterns is made from a completely different process, which is filament winding. You could consider a winding tube is made of semi-woven CF completely, from the bottom to the surface. Compare to prepreg tubes, winding tubes shows much better torsion strength but is more difficult to manufacture, it heavily relies on expensive automation equipments. On the other hand the tooling to make prepreg tubes is very simple and cheap.
Both prepreg tube and filament winding tube meets the standard of inspire 1 so they will not bring in any noticable performance difference. As a matter of fact two tubes cost almost the same. DJI chooses to use them both simply to secure the supply chain.-----Dr.Turbo from DJI “
鉴于很多人看不明白,特此翻译一下: ”常见的整齐花纹碳纤维管是预浸料做的。内部铺层为单轴方向,外部铺层为3k碳纤维预浸布。 而另外一种更大花纹的碳管使用完全不同的工艺---碳纤维缠绕工艺,可以理解为整体纯碳纤维卷绕管。跟普通碳管比呢,缠绕碳管有高得多的扭转强度但生产起来更 加困难,它十分依赖昂贵的自动化机器设备。对比来说,制作3k管使用的工具设备简单而廉价。 这两种工艺均满足 Inspire 1的设计使用要求,所示不会带来任何使用上的差别。 实际上两种碳管成本几乎一样。之所以两种都用,是为了满足供应链而已。--- Turbo博士 DJI“