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The idea of a water cooler for Raspberry Pi brought to mind some sort of sweet summery drink complete with paper umbrellas and a pounding headache the first time I heard it. The item itself is actually a single board computer approximately the size of a credit card that was developed by the Raspberry Pi Foundation. The foundation, created in 2006, hoped the product would help to promote the study of basic computer science and receives its support from the University of Cambridge Computer Laboratory and Broadcom. Its co-founder Eben Upton described the reasoning behind the initiative:

“The lack of programmable hardware for children – the sort of hardware we used to have in the 1980s – is undermining the supply of eighteen-year-olds who know how to program, so that’s a problem for universities, and then it’s undermining the supply of 21-year-olds who know how to program and that’s causing problems for industry.”

Raspberry_Pi_Beta_BoardThe kind of philosophy that led to the development of this technology is in perfect keeping with the pedagogical trends in favor in 3D printing and the open source resourcefulness boasted by sites such as Instructables. Upton would surely be proud of the kind of innovative initiative taken by user name ‘Unprecedented’ in the creation of a water-cooling system for the Raspberry Pi’s ARM processor. The user bubbles with the same type of enthusiasm that must have led to the Raspberry Pi’s development:

“I wanted to give the gift of easy water cooling to the entire raspberry pi community. I decided to build a 3D printable water block that anyone with access to a 3D printer could build. What if you don’t have a 3D printer? Well, you can still build one!”

FLC6JKYHTOUFDX7.MEDIUMAs per usual, the Instructable comes with the address to download the 3D files needed to print the pieces. Alternatively, if you don’t have a 3D printer (and maybe don’t feel like building one just yet) you can buy the printed parts through Unprecedented’s Shapeways storefront.

Aside from what it costs to purchase the supplies, I must warn you that there is a small monetary investment involved. You will need to sacrifice: a penny. Just as in the old bon mot, “a penny saved is a penny that can be used in the bottom of a homemade Raspberry Pi water cooler.”

The penny is pressed into the bottom piece of the cooler, being careful to remove any extra sealant that might leak onto the penny and prevent a good transfer later. Unprecedented warns that you will want to test the seal created during step 4 before moving on in the project otherwise you will find yourself attempting to dry and fix leaks that are nearly impossible to find.

F15BCNGHTOUFEH2.MEDIUMFollowing the detailed instructions, interspersed with updates as troubleshooting occurred, along with the numerous photographs leads to a water cooler to be attached firmly to the Pi. If you take the project from start to finish (including building a 3D printer) you will have gone a long way toward just the sort of tinkering and sharing Upton and others envisioned when the first created the Pi itself.

Although I have to admit, I still like the idea of that drink…

What do you think about this project? Is it something you would find useful? Tell us what you think over at the 3D Printed Water Cooler for Raspberry Pi forum thread at 3DPB.com.

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