When I writing this article, my left arm is in a plaster cast.
當我寫這篇文章時，我的左手臂是正在打石膏的。
It is very uncomfortable in a plaster cast.
Also, there are many inconvenience when you put on it. For examples:
打石膏是非常不舒服。
此外，當你穿上它有很多不便例如：
You cannot bath easily because you can only use one hand;
You cannot exercise like running because sweat causing an itch easily;
You cannot swim;
You cannot washing your broken arm for 6 to 8 weeks and it may cause skin allergy;
You cannot go out when it is raining.
你不能輕易洗澡，因為你只能用一隻手;
你不能像跑步一樣運動，因為汗水容易導致瘙癢;
你不能游泳;
您不能將手臂洗滌大約6至8週，否則可能會導致皮膚過敏;
下雨的時候你不能出門 。
So, we cannot do these daily task because we cannot get wet the plaster cast and also the cast is not removable.
However, if we can solve these problems, we can make the injured more convenience for doing the daily task.
所以，我們不能做這些日常活動，因為我們不能弄濕石膏。
但是，如果我們能解決問題，我們可以讓傷者更加方便日常工作。
The 3D printing can definitely solve this problem!
Actually some experts have designed some plaster casts already, but it is not popularized.
3D打印絕對可以解決這個問題！
其實有些專家已經設計了一些3D打印石膏，但沒有普及。
Using 3D-printing has many advantages.
Firstly, we can use the 3D-scanner for modelling the size of the 3D- cast, it can be enlarged in the computer and provide the perfect fitted cast for the injured.
使用3D打印有很多優點。
首先，我們可以使用3D掃描儀對3D投影的尺寸進行建模，可以在電腦中進行擴展，並為受傷者提供完美的配合。
Credit: www.aniwaa.com/wp-content/uploads/2014/11/3D-scanner-LMI-Technologies-HDI-120-in-use.jpg
Secondly, 3D printing allow the user to make many big or small holes.
其次，3D打印允許用者做許多大或小的孔。
Credit: img.etimg.com/thumb/msid-21012297,width-640,resizemode-4,imglength-27737/3d-printed-plaster-cast.jpg
In addition, as the 3D-printing technology grows rapidly, the cast can also be designed like model kit, that is, can be build or seperate eaily. It helps the injured very much.
此外，相信隨著3D打印技術的快速發展，鑄造也可以像模型套件那樣設計，也就是分成數部分，可以輕易建立或分開。它非常有助於傷者。
Hopefully, the 3D-printing cast will popularize in the near future.
希望3D打印石膏在不久的將來會普及。
If you have friend who is medical staff or injured, hopefully you can share to them:)
如果你有朋友是醫務人員或傷者，希望你可以分享給他們:)