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Contents Menu Expand Light mode Dark mode Auto light/dark mode Hide navigation sidebar Hide table of contents sidebar Toggle site navigation sidebar BrachioGraph 0.1 documentation Toggle Light / Dark / Auto color theme Toggle table of contents sidebar BrachioGraph 0.1 documentation TutorialToggle child pages in navigation1. Construct the plotter2. Install the software3. Wire up the plotter4. Start up the BrachioGraph5. Start plotting6. Improve the output7. Apply more sophisticated calibrationHow-to guidesToggle child pages in navigationPrepare a Raspberry Pi Zero for use with the plotterUse the linedraw library to vectorise bitmap imagesRun a virtual BrachioGraph in softwareVisualise the behaviour of servosOptimise plotter geometry and drawing areaBuild a PantoGraph, an alternative plotter designBuild the documentationRun automated testsReferenceToggle child pages in navigationlinedraw.pyPlotter modulesTurtle plotterCommunity resourcesExplanationToggle child pages in navigationHow a BrachioGraph worksHardwareMathematicsAlternative designs and materialsUnderstanding the plotter geometryCompensating for hardware limitations Toggle Light / Dark / Auto color theme Toggle table of contents sidebar .row {clear: both} h2 {border-bottom: 1px solid gray;} .column img {border: 1px solid gray;} @media only screen and (min-width: 1000px), only screen and (min-width: 500px) and (max-width: 768px){ .column { padding-left: 5px; padding-right: 5px; float: left; } .column3 { width: 33.3%; } .column2 { width: 50%; } }BrachioGraph - the cheapest, simplest possible pen-plotter¶Share on TwitterFollow @BrachioGraphBrachioGraph - 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 andhousehold items. The BrachioGraph library is published on GitHub abdincludes 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.Contents¶Tutorial¶Start here: build the machine, install the software, make your first drawingsHow-to guides¶Improve the calibration, process images, visualise plotter behaviour, alternative designsExplanation¶Understanding the mathematics, choosing hardware.Reference¶Guide to key classes and functionsFrom bitmap to plot via vectorisation¶The BrachioGraph community¶BrachioGraphs benefits from contributions from the open-source community, and independently-created communityresources. These include videos, brachio.me, a web version of thelinedraw software used to vectorise images and 3D printed plotter components.About the documentation¶This documentation uses the Diátaxis documentation structure Next Tutorial Copyright © 2019, Daniele Procida | Created using Sphinx and @pradyunsg's Furo theme. | Show Source Contents BrachioGraph - the cheapest, simplest possible pen-plotterContentsTutorialHow-to guidesExplanationReferenceFrom bitmap to plot via vectorisationThe BrachioGraph communityAbout the documentation
