The Raspberry PI is an amazing hardware. So for an amazing hardware you need a nice case. This is my proposal to have a wooden case for your Raspberry PI or another SoC that you have decided to have.
If you are interested in Raspberry PI and how to integrate its capabilities with Arduino then see this site: http://arduinopclink.altervista.org/
or see this video: http://www.youtube.com/watch?v=55of1jn1pYw
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Step 1: Materials, Tools and Hardware Needed
parquet for the top and bottom of the case
wood for the structure
transparent plexiglass for the front and side of the case
screws and bolts
silver spray paint to paint the plexiglass
10 port USB HUB
2A power supply
2.5-inch USB hard disk or an Arduino board (http://www.arduino.cc/)
Step 2: Holes to Dissipate Heat
After choosing the size of the case, cut the parquet and cut the planks you need to make holes in the bottom of the case. In this way it is possible to dissipate the heat of the hardware installed inside.
To be precise in pierce the bottom of the case I used the following technique.
1. with a word processor draws on a sheet of paper where the holes need to be made;
2. do join the sheet of paper on wood panel with adhesive tape strips;
3. with a chisel and a hammer marks where the holes should be made
4. remove the paper and do the drill holes
I like to call this technique light computer aided wooden craft.
Some of the holes are used to insert some screws with bolts. In this way the hardware inside can be stopped between a screw and another.
Step 3: Place the Hardware
Connect the power supply to the HUB USB
Connect the tenth port HUB to the power port of the Raspberry PI
Connect the Raspberry PI USB port to the control HUB port
In the case there is space left to place something else. I put in a 2.5-inch USB hard disk. I used then Berry Boot http://www.berryterminal.com/doku.php/berryboot to install all the operating systems needed for my Raspberry PI.
Alternatively, you could enter into an Arduino board. See my website http://arduinopclink.altervista.org/ to understand how to integrate Raspberry PI with Arduino using my open source library Arduino PC Link (http://arduinopclink.altervista.org/) or watch a video demonstration here: http://www.youtube.com/watch?v=55of1jn1pYw
Step 4: Place the Top
Make a window on the top to show the USB ports.
Refine window glueing a mask made of plastic or plastic-coated paper.
Glue the wooden planks to the top.
Place the top on the bottom and put the screws into the holes made in the bottom.
Place the plexiglass on the front and sides. The plexiglass is higher than the wooden houses. in this way, the case is lifted from the ground and the holes to dissipate heat can operate.
You're done. The only thing missing is the switch to turn on and off.