https://github.com/openBrushograph/openBrushograph_hardware

A simple, open source and 3D-printable DIY x-y gantry and z-mechanism for making a brush painting robot
https://github.com/openBrushograph/openBrushograph_hardware

Last synced: 2 months ago
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A simple, open source and 3D-printable DIY x-y gantry and z-mechanism for making a brush painting robot

• Host: GitHub
• URL: https://github.com/openBrushograph/openBrushograph_hardware
• Owner: openBrushograph
• License: other
• Created: 2025-11-26T19:49:46.000Z (3 months ago)
• Default Branch: main
• Last Pushed: 2025-11-26T21:55:56.000Z (3 months ago)
• Last Synced: 2025-11-29T17:23:31.641Z (3 months ago)
• Language: OpenSCAD
• Homepage:
• Size: 3.19 MB
• Stars: 2
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-plotters - openBrushograph - Open source 3d-printable XY gantry and Z-stage designed for automated brush and pen painting. (Hardware / Plotters)

README

          
# openBrushograph

![openBrushograph](docs/openBrushograph_flyer.jpg)

A simple, open source and DIY x-y gantry and z-mechanism for making a brush painting robot. Formerly know as Brušograf...

## Quick links

- hardware/: printable parts and sources

- hardware/README.md: structure, print guidance, assembly overview

- LICENSES/: CERN-OHL-S/W/P and CC BY-SA texts

## Overview

openBrushograph is a small CNC-style plotter for brushes and pens. The X–Y gantry is modeled in FreeCAD and the Z mechanism in OpenSCAD.

Full background, tutorials and history live on the SGMK wiki:

https://wiki.sgmk-ssam.ch/wiki/Brushograph

![openBrushograph](docs/brushograph_closeup.gif)

## Setup options (controllers/firmware)

- FluidNC (ESP32 with WebUI): https://installer.fluidnc.com/

  - About FluidNC: http://wiki.fluidnc.com/en/home

- Arduino (GRBL): https://github.com/gnea/grbl

  - GRBL fork for 28BYJ-48 unipolar steppers: https://github.com/TGit-Tech/GRBL-28byj-48

- Universal Gcode Sender (UGS): https://winder.github.io/ugs_website/

See details and tips on the wiki: https://wiki.sgmk-ssam.ch/wiki/Brushograph#How_to_set_it_up

## Printing and assembly

- X–Y: FreeCAD source and STLs in hardware/X-Y_freeCAD/

- Z: OpenSCAD source and STLs in hardware/Z-mechanism_openSCAD/

- Basic print guidance is in hardware/README.md

More context and legacy designs: https://wiki.sgmk-ssam.ch/wiki/Brushograph#Printing_and_assembling_the_Brushograph

## Related links and credits

### Credits

General openBrushograph concept and artistic director, Dominik Mahnic: https://app.assembla.com/spaces/dominik-mahnic/wiki

X–Y: FreeCAD version designed by Stahl: https://github.com/stahlnow

Z: OpenSCAD version designed by dusjagr: https://github.com/dusjagr

### Where the inspirations came from

- Z-mechanism inspiration (Thingiverse): https://www.thingiverse.com/thing:7050508

- Earlier mini plotter references:

  - https://www.thingiverse.com/thing:4579436

  - https://www.thingiverse.com/thing:4607077

  - https://www.thingiverse.com/thing:4796222

  - https://www.thingiverse.com/thing:5719788

 

## License

- Hardware: CERN-OHL-S-2.0 (see LICENSE and LICENSES/)

- Documentation: CC BY-SA 4.0