The Raspberry Pi is a credit card sized single-board computer developed in the UK by the Raspberry Pi Foundation with the intention of stimulating the teaching of basic computer science in schools.
In short, Pi is an ARM-based mini computer which has a credit card size.
After using Raspberry Pi for some time, I decided to make a case for it for protecting reason, and it's finished appearance looks like this:
Of course not beautiful, but very useful(please ignore the coin besides the case). Below is the basic process to build one:
【1】准备机箱材料 / Preparing case material
What is the best material for the case? Metal is too hard to process and paper board may not has enough hardness & it's not transparent, so the acrylic plate may be an excellent choice: transparent, easy to process, enough hardness, and super cheap - it has been proved that we can make a Pi case with an acrylic plate less than $0.4 !
下面是我买的亚克力板(上面粘了一层纸，撕掉即透明)，￥5 一块，尺寸 20cm * 30cm，厚约1.7mm，最后做好一个树莓派机箱用了不到半块。
Below is the acrylic plate I bought(a piece of paper was sticked there so it's not transparent), it's price is less than $1, size is 20cm * 30cm, thickness is about 1.7mm, at last I used less than half of it to make a case.
【2】准备工具 / Preparing tools
To improve work efficiency, I bought some useful things from taobao.com(the largest e-commerce website in China), e.g. a electric grinder, some drills, etc. Below are my equipments -
The electric grinder:
Drills used by the electric grinder:
The cutting head used by the electric grinder:
Grinding heads used by the electric grinder:
Chucks used to fix all the drills & heads above:
The electric grinder with the cutting head equiped:
Never think that these tools will cost you a lot, actually because of they are all inferior quality products which have low precision, so all of them are cheap to buy. They cost me only about $20 and are very suitable for tech geeks.
【3】量体裁衣 / Cut out acrylic plate to fit Pi
I don't know how to get the three dimension of Pi by computer reverse engineering, and I don't have any precision processing equipment such as NC machine tools, so I can only use the most primitive method to do the work, that is, put Pi on the acrylic plate, draw some rough lines, and then cut it - totally need to cut 6 pieces of board with different size. You can't limit the USB port & network port to a very small size because you can't process the acrylic plate very precisely, so leaving some some is very important. I'm very regretful that I waste 2 pieces of finished boards because of short size.
在这里给大家一个长宽高的参考值：90mm * 60mm * 35mm，如果没有精密加工设备，建议普遍放大5~10mm。至于其他的每个接口的尺寸和位置，我就给不了你了，因为我也是跟着感觉走的...
Here is a reference value of the three dimension of Pi: 90mm * 60mm * 35mm. Add 5~10mm if you don't have precision processing equipments. And I can't give you any info of all the positions & sizes of the ports on Pi, because I was following my thinking to do that..
For cooling reason you should drill some holes on the head cover board, I made a word "Pi" as you seen before.
The detailed process will not be described here because it's just along with noise & dust(remember to wear a mask), and of course, happiness.
【4】组装 / Assembling
Because of lacking of enough precision, the self-made boards couldn't be jointed together without any outside help, so I used 4 rubber bands to fix them, as you seen before.