我们希望收到你的来信。树脂3D打印在哪里获胜，障碍是什么？拿Spotlight on Resin 3D Printing现在调查。
我们观察树脂3D打印状态的系列仍在继续，从经营3D打印局获得的见解。拥有二十多年的经验，AME-3D是位于英国谢菲尔德的工业3D印刷服务提供商。在本文中，董事总经理Rich ProctorAME-3Ddiscusses how the areas where SLA 3D printing technology needs to advance and how new materials could propel the sector further.
3DPI：近年来，您如何看待基于树脂的3D打印？
Rich Proctor: There are more varied technologies compared to ten years and more ago. Before there was only SLA, not there’s DLP, MSLA, LFS etc. Also, the materials are much improved.
当我们刚开始使用SLA系统时，这些材料是令人难以置信的水镜和脆性。周末之前和之后，零件可能是截然不同的尺寸。现在，有很多材料从类似的ABS，类似的聚碳酸酯到柔性橡胶模拟剂，甚至最终使用的True Silicone。
系统的准确性也提高了一些运行的10µm层，这给出了更好的细节。
最后，机器速度要快得多。我们的最新机器将与我们的旧机器同时运行完整的版本，但区别在于它们大8倍，这意味着可以比以往任何时候都更快地构建。
3DPI：您认为要克服基于光聚合物的3D打印的下一个技术障碍是什么？
Rich Proctor: Materials have come a long way in the last 20 years but can always be improved. All materials on the SLA systems replicate end-use polymers but so far they never quite match up to the properties of the real thing.
In addition, UV-cure materials will always be susceptible to sunlight which limits the amount of time a SLA component will function well outdoors. This is now better than previously but limitations still exist.
The same goes for waterproof materials. These are better but have still limited.
At AME-3D, we have a mixture of old and brand-new machines and can maintain them to a high standard. From an environmental point of view, a reusable consumable material would be ideal. If this were possible the support structures used in the printing process could be reused and not thrown away.
通过增加，将始终提高分辨率，因为在激光斑点将被改进到越来越小的斑点大小。这意味着零件可以更细节。这就像用锋利的铅笔而不是永久标记绘画。但是，这增加了时间。如果我们可以在不牺牲时间的情况下增加细节，那将是一个重大的改变游戏规则。
Speed has also increased dramatically but remains steady with SLA. The name rapid prototype is slightly overplayed with SLA. DLP is a significantly quicker technology but build volumes are small and they are a more expensive investment. (The investment in both machines and material is higher). If SLA could become faster and DLP larger then both technologies would be adopted for more applications.
3DPI: What applications of vat photopolymerization do you see as under-developed by the market, and why?
Rich Proctor：以前，材料能力阻碍了增值税光聚合技术的使用，因为它一直是水镜和脆性的。现在，它更加健壮和准确，非常适合以前不适合的最终用途零件。
In the meantime, other technologies such as SLS, MJF and FDM have stepped into the end-use parts game at the expense of SLA. This has the potential to change now that vat photopolymerization technology has improved.
例如,医疗设备,解剖模型,components with flexible materials like orthotics, and the aerospace industry could benefit from vat photopolymerization and use it more widely.
3DPI: Where are opportunities for materials development in regards to vat photopolymerization technology?
Rich Proctor：SLA和DLP系统的材料在很大程度上是刚性的，有些例子是灵活的。材料的处理对于柔性材料来说是复杂的，但是用户的优势很棒。
As mentioned previously, both waterproof and UV stable materials would help to increase the usage opportunity of vat photopolymerization technology.
同样，耐化学能力将使SLA有机会在更广阔的市场上工作，并在SLS，MJF和FDM目前占主导地位的市场中使用。
A big step forward for vat photopolymerization materials would be to make them suitable for regulated industries, for example, making them food safe, skin safe, or FDA compliant.
More articles in this series: TheState of 3D Printing: Resin.
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Featured image shows AME 3D Product Development Technician Andy Hall with first large part from RS Pro 800. Photo via AME 3D.
