PCBs without any substrate
posted Mar 31st 2011 8:01am by Mike Szczysfiled under: arduino hacks, misc hacks
[Kimio Kosaka] is taking the concept of free-formed circuits to the next level with O’Baka Project No.7. It’s a fully functioning Arduino board, without the board. The traces are there and provide all of the support for the rest of the hardware. You can imagine the fragility of the package so it won’t be a surprise to learn that O’Baka Project means ‘stupid’ project.
We don’t think this manufacturing process is completely worthless. The ‘board’ seen above looks quite interesting and might be a good idea when building a show-piece where you want the circuitry to be seen. [Kimio] describes the process he used to achieve this look. The first step is to design a single-sided circuit board; he used EagleCAD. After printing out the traces he used 0.46mm steel wire to trace out each connection. Now heat up that soldering iron – [Kimio] recommends using high-acid flux to ease the process of soldering to the steel.
We think this would nicely compliment projects like LED cubes that use the circuit itself as a support structure. See this Arduino alternative from several different angles in the video after the break.
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