> For the complete documentation index, see [llms.txt](https://wiki.polymaker.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.polymaker.com/polymaker-wiki/polymaker-wiki-zh/ji-chu-zhi-shi/fun-3d-printing-facts/fdm-vs-fff.md).

# FDM 与 FFF

熔融沉积成型（FDM）和熔融丝材制造（FFF）描述的是同一种 3D 打印工艺，即通过将热塑性丝材逐层挤出以构建零件。由于成本相对较低、材料易获得，并且业余爱好者和专业人士都能方便使用，这种方法已成为应用最广泛的增材制造技术之一。尽管名称不同，但两者的底层工艺是相同的。

这些术语之间的区别源于知识产权，而非技术本身。熔融沉积成型一词由 3D 打印行业的先驱公司之一 Stratasys 创造并注册为商标。由于该名称受保护，更广泛的社区，尤其是开源领域，采用了熔融丝材制造这一术语来描述同样的工艺，以避免侵犯商标权。

如今，FDM 和 FFF 常常可以互换使用，用来描述基于挤出的 3D 打印。在商业和工业场景中，FDM 可能更常见，尤其是在提及 Stratasys 设备时；而 FFF 则常用于指代开源或消费级打印机。无论术语如何，这项技术都指的是增材制造中的同一基础工艺。

{% embed url="<https://www.youtube.com/shorts/zNtaDh2P3x4>" %}


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