gcode-nom

Rust 2021 Edition.

A library containing a full set of nom parsers for decoding gcode files.

Both .gcode files and binary .bgcode files are recognized.

Based on this library the workspace contains a series of visualization tools

• gcode2obj - Generates "WaveFront Obj" files.
• gcode2svg - Generates SVG files.
• gcodeExtractThumbs - Extracts the images embedded in a binary-gcode file.
• bgcodeViewer - Generates a report by turning on all the logging and them attempts to parse the file.

I intend the parsers to be as strictly compliant as possible. This is under-going rapid development. Please create a issue in the associated git repository.

See nom - "A byte-oriented, zero-copy, parser combinator library"

Changelog

Version 0.6.0 adds supports of G02/G03 "Arc or Circle" commands. Allowing a more diverse set of gcode files to be rendered.

Between version 0.4 and 0.5 a major performance misconception was unpicked.

A 9.9MByte file is processed 60 times faster. Now in 1.3secs

[ See the assets folder associated with this repository "gear-holder-print-in-place_04n_022mm_pla_mk4_6h49m.bgcode" ]

Tools

gcode2obj

Generates obj files.

Pass the gcode file into StdIn - the obj file is sent to StdOut :-

cd gcode2obj
cargo run --release -- < ./assets/benchy.gcode > benchy.obj

If a filename is passed in as a command line parameter then a obj file will be dumped to StdOut.

cd gocode2obj
cargo run --release -- ../assets/X\ 6x6_0.15mm_PLA_MK3S_1h55m.gcode > X.obj

Which for example can be imported into blender for visualization.

Within blender :-

1. This obj has been "Imported".
2. Converted into a "Curve".
3. Finally a circular bevel object has been applied to make the object solid [ A circle to represent a 0.1mm fibre].

gcode2svg

Generate svg files

How to use

Pass the gcode file into StdIn - the SVG file is sent to StdOut :-

cd gcode2svg
cargo run --release -- < ./assets/benchy.gcode > benchy.svg

If a filename is passed in as a command line parameter then a svg file will be dumped to StdOut.

cd gocode2svg
cargo run --release -- ../assets/X\ 6x6_0.15mm_PLA_MK3S_1h55m.gcode > X.svg

gcodeExtractThumbs

Iterates over all the embedded thumbnail block and save the images to disk

cargo run --release  --  ../assets/both\ parts.bgcode

bgcodeViewer

Strict checking of binaries. validates blocks checksums, ensures 'block' parameters values are within valid ranges.

Pass the gcode file into StdIn - A summary file is written to StdOut

cd bgcodeViewer
cargo run --release  < ../assets/both\ parts.bgcode > summary.txt

Future work

see TODO

Missing implementations

G2/G3 -- Arc have two forms "IJ" and "R". "R" the less popular form is unimplemented.

G5 - Bézier Cubic Spline Command