Convert SVG (text is not supported; convert text to paths) and HPGL to gcode for a 3-axis GCode machine, where the Z-axis controls the pen height.

You can also convert the same SVG subset to HPGL.

Run with no arguments for some help.

Ender 3 V2 compatibility:

• Default machine profile is now ender3v2 (Marlin-safe startup and M0 pause command).
• To keep old behavior, use --machine-profile=legacy.
• Curves are smoothed by default (curve-smoothing=0.35) for more continuous plotting motion.
• Tiny disconnected paths are filtered by default (min-path-length=0.30) to reduce dot-like motion and excessive pen up/down.

Single-folder Inkscape install:

• Copy the inkscape-gcodeplot folder into your Inkscape user extensions directory (%APPDATA%\inkscape\extensions on Windows).
• Restart Inkscape.

Note on multiple pen usage:

The pen definition file is one-pen per line, in the format:

n (x,y) svgcolor comment

Here, n is the pen number (pen 1 is assumed to be loaded at the start), (x,y) is the offset from the default pen position (note: gcodeplot.py will correct the offset and will NOT check for clipping at drawing edges--it is your responsibility to make sure your tool doesn't crash into anything due to offset), svgcolor is a color specification in svg format, e.g., rgb(255,255,00), #FFFF00 or yellow, and the comment is a human-readable comment.