Printed circuit boards, they’re a medium designed primarily to mount electrical components with the wires themselves places as copper traces on the boards. To accommodate wide range of needs that have arisen over decades, board houses have evolved all manner of advanced techniques in routing and plating. To our benefit, this also makes it possible to leverage PCBs in an entirely artistic way, taking advantage of the highly-optimized manufacturing process. [GeeekClub] did just that, creating awesome vibrating robots out of custom-made PCBs.
The ‘bots come as a single PCB, with the parts snapped out akin to removing parts from sprues in a plastic model kit. They can then be assembled, with a pair of pager vibration motors installed to provide motive power. But really it’s the aesthetic of the boards and not the functionality that make these so incredible.
The design nestles a coin cell in the base of each bot, providing power and using the weight to help keep them upright. There’s a smattering of LEDs on board, and the art style of the ‘bots draws from Hopi Indian, Asian, and South American influences.
This “flat-pack” style of PCB design that comes to life with creative use of angles and layers is becoming its own sub-genre of the art. The Star Trek Enterprise inspired build in another great example. We’ve also seen a growing trend of using the PCB as enclosures, take the Cyphercon badge and Queercon badge projects from 2017 as examples. Get yourself up to speed on design techniques for using FR4 as an enclosure from [Voja Antonic’s] in-depth guide.