Basement Ooza Basics

The hacked together pipeline is as follows given an svg $SVG. You may use the Woodbine.svg file as an example for testing.

1. Ensure that your SVG has a size set that fits in Ooza
   1. One way to ensure is by setting width & height on the root <svg> element
2. Convert the SVG to gcode via cargo run --release -- $SVG -o $OUTFILE
3. Rewrite the gcode to be compatible with Ooza via python rewritegcode.py $OUTFILE $FINALFILE. This will do a few things:
   1. Exit with an error message if the print would go outside the bounds of Ooza
   2. Rewrite the coordinates to center where the print happens
   3. Prepend the header in ooza/config.g to the rewritten gcode
4. Upload $FINALFILE to Jobs in Duet and run it

svg2gcode

Convert vector graphics to g-code for pen plotters, laser engravers, and other CNC machines

Usage

Web interface

Check it out at https://sameer.github.io/svg2gcode. Just select an SVG and click generate!

Command line interface (CLI)

Input

cargo run --release -- examples/Vanderbilt_Commodores_logo.svg --off 'M4' --on 'M5' -o out.gcode

Output, rendered at https://ncviewer.com

cat out.gcode

Library

The core functionality of this tool is available as the svg2gcode crate.

Blog Posts

These go into greater detail on the tool's origins, implementation details, and planned features.

• https://purisa.me/blog/pen-plotter/
• https://purisa.me/blog/svg2gcode-progress/

FAQ / Interesting details

• Use a 3D printer for plotting: (thanks @jeevank for sharing this) https://medium.com/@urish/how-to-turn-your-3d-printer-into-a-plotter-in-one-hour-d6fe14559f1a

• Convert a PDF to GCode: follow this guide using Inkscape to convert a PDF to an SVG, then use it with svg2gcode

• Are shapes, fill patterns supported? No, objects must be converted to paths in Inkscape with Object to Path for use with this program. See #15 for more discussion.

Reference Documents

• W3 SVG2 Specification
• CSS absolute lengths
• CSS font-relative lengths
• CSS compatible units
• RepRap G-code
• G-Code and M-Code Reference List for Milling