An undergraduate at New Jersey Institute of Technology made his own plastic braces using a 3D printer, US$60 of materials, and they actually worked.
新澤西理工大學(xué)的一名本科生用一臺(tái)3D打印機(jī)以及60美元的材料為自己制作了塑料牙箍，而且這些牙箍確實(shí)有效。

Amos Dudley had braces in middle school, but he didn't wear a retainer like he was supposed to, so his teeth slowly shifted back. He didn't want to shell out thousands of dollars for a whole new round of braces, so the digital-design major decided to make his own.
阿莫斯·達(dá)德利中學(xué)的時(shí)候就戴上了牙箍，但他沒(méi)有按要求戴固位體，所以他的牙齒逐漸后移。他不想花上千美元去做一套新牙箍，所以這位主修數(shù)字化設(shè)計(jì)的大學(xué)生就決定自己做牙箍。

The process wasn't exactly easy. He had to research orthodontic procedures and plot the route of his successive braces, so his teeth would move in the right way.
制作牙箍的過(guò)程并不簡(jiǎn)單。他必須研究牙齒矯正的步驟，繪制好相繼更換的牙箍的制作方法，這樣他的牙齒才會(huì)以恰當(dāng)?shù)姆绞介L(zhǎng)回去。

But once that was done, all it took was fabricating a series of models out of relatively inexpensive plastic, and then following through on wearing them.
不過(guò)一旦完成以上步驟，需要做的就是用相對(duì)便宜的塑料制作一系列模型，然后就可以戴上了。

And it was worth it for Dudley, whose smile turned out looking remarkable.
對(duì)達(dá)德利而言，這很值得，他的微笑也變得十分明顯。

Here is the process he went through:
以下是他制作牙箍的過(guò)程：

First he took a mold of his teeth with alginate powder. "These molds are very precise, and capture an amazing amount of detail," he writes.
首先他用海藻酸鹽粉末制作了一個(gè)牙齒模具?！斑@些模具很精密，捕捉了大量的細(xì)節(jié)，”他寫道。

"I put the mold upside down in a yogurt container, and then filled it with liquid Permastone," he writes.
“我把模具倒置于盛酸奶的容器中，然后用液態(tài)的仿石材料填滿容器，”他寫道。

"When it came out, I simply broke off the top to reveal the casting, and used a razor blade to smooth out the surrounding area."
“做成之后，我只是敲碎頂部，露出鑄模，然而用一把剃須刀片把四周刮平?！?/div>

Now he had a better sense of what was going on with his teeth.
如今他對(duì)他的牙齒矯正過(guò)程有了更好的了解。

The picture below shows the "steps", all 3D-printed out. "Labeling the pieces is critical," he advises. "They look virtually identical."
下面這張照片展示了“牙齒矯正的步驟”，所有的都是3D打印出來(lái)的?！百N標(biāo)簽很重要，”他建議道?！耙?yàn)樗鼈兛瓷先缀跻粯?。?/div>

（翻譯：Dlacus）

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