BrachioGraph - the cheapest, simplest possible pen-plotter

BrachioGraph <https://www.brachiograph.art/>_ is an ultra-cheap (total cost of materials: ~€14) plotter that can be built with minimal skills.

At its heart is a Raspberry Pi Zero and some relatively simple custom software, driving three servo motors.

The mechanical hardware can be built from nothing but two sticks, a pen or pencil and some glue. No tools are required.

Almost everything required can be found in a desk or kitchen drawer. The entire device can be built with no special skills in about an hour.

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BrachioGraph can be found on Twitter <https://twitter.com/BrachioGraph>_.

Documentation

Complete documentation for the project, with detailed instructions on how to build and use it <https://www.brachiograph.art/>_