BrachioGraph – the cheapest, simplest possible pen-plotter

BrachioGraph - arm-writer - is an easy-to-build pen-plotter, driven by a library of simple Python applications. A BrachioGraph can be built for about €15 in an hour or so, using a Raspberry Pi computer, hobby servo motors and household items. The BrachioGraph library is published on GitHub abd includes simple Python code to drive the plotter and vectorise bit-map images. BrachioGraph plots cheerful, low-fi drawings, and can produce robotic sketches using a variety of drawing implements. Improve the calibration, process images, visualise plotter behaviour, alternative designs. From bitmap to plot via vectorisation¶ The BrachioGraph community¶. BrachioGraphs benefits from contributions from the open-source community, and independently-created community resources.