I'm from Germany and this is my first posting on instructables.
(Sorry for my curious english)
Some weeks ago I found an old and empty watch case on a scrap yard. The brass case weighs more than 5 kg.
Battery acid had nibbled (eaten away) at the case and it was green in many parts (acid & copper rust). The remaining parts were nearly black. After I had cleaned the case, I thought, this becomes a Multimedia centre for videos, pictures and music and I built a Raspberry Pi in this case.
Here is the part list for the Brassberry:
- Raspberry Pi with 512 MB
- 8 GB SD-Card with Raspbian and XBMC
- ATX-power supply (Controller)
- Belkin USB-Hub (4+1 ports) 5V, 2.6 A
- Thin ply wood (wallboard)
- Brass 2 mm
- Some cables, jacks, sockets, screws
- One Microswitch
- ironing beads from my children (as distance piece)
- One red LED, and a plastic diamond from my daughter (gift from her)
and a sugar-raspberry from a bag with candy
Here is a link to a video on youtube
Step 1: Cleaning the Case
Unfortunately, I have no photo of how it looked before I cleaned the case.
First I sanded down the copper-rust with sandpaper.
Then I made a paste of salt, flour and vinegar essence and I wrapped up the brass-case in a 1-cm-thick layer with this paste.
After 12 hours I brushed off the paste under fluent water with old toothbrushes.
The damaged parts of the case I repaired it with my Dremel (high speed rotating tool)
With further old toothbrushes, a brass Polish and approximately 100 square metres of old clothes I cleaned the case shiningly.
Step 2: The Company Logo
1.) An old brass-platte (2mm)
2.) Saw off a piece of brass
3.) Draw the logo with carbon-paper on thin ply wood (1mm)
4.) Drilling holes for the inner cutaways
5.) Saw the wooden logo (=former plate)
6.) Polish the piece of brass
7.) Use the wooden logo as former plate and scratch the logo into the brass
8.) Saw the brass logo
9.) File, sand and polish the brass logo - ready
Step 3: How to Connect
A Raspberry Pi has no power switch.
Instead of typing the shutdown procedure , you can use a ATX power controller.
You can switch on or switch off the Raspberry with this controller. (5V)
See more informations here
If you want to use only one power supply for the Raspberry, the controller and the USB-Hub,
take a look on this site . There are a lot of active Hubs listed, which are okay for this idea. (Backdoor problem)
Step 4: Inside the Case
- The Raspberry and the power controller are mounted on a piece of wood.
- The cables are from old computers and I cut them on the right length (but not the HDMI)
- Every connection of the Raspberry (and the Hub) is connected with the backside of the case
- Everything is well fixed and isolated
- This case is built ..... closely
Step 5: The Button
I was looking for a golden raspberry, but I had no sucess.
Not in the internet and not in any shops in my hometown.
In a bag of sweets i found a red sugar-raspberry.
With golden colour and clear sealer i made my own golden raspberry
and stucked the raspberry with superglue on the button of the switch.
Thanks for your attention
G.I. von Heddernheim