nc_tools

A collection of composable CNC/CAM GCode tools.

$ cat robot2.ngc | nc_backplot

Implemented utilities

• nc_backplot
  • display a backplot of the incoming gcode
• nc_model
  • generate a 3d model of the incoming gcode, given tools and stock
• nc_rename_axis
  • rename an axis, a=> is delete, a=>b is rename, a<=>b is swap
• nc_bounds
  • bounding box of gcode or .off model
• nc_transform
  • transform / rotate stock for next operation
  • nc_transform -a 45 -b 45 -x -30 # rotate 45 deg around x, 45 around y, translate -30 on x
• nc_tooltable
  • generate linuxcnc tool table from nc_tools.conf
• nc_contour_pocket
  • Generate contour parallel toolpath from gcode path
• nc_stock
  • Generate .off stock models
• nc_svgpath
  • SVG path data -> gcode converter
• nc_identity
  • gcode identity transformation - base for new tools
• nc_arcfit
  • recover G2/G3 arcs from linear paths
• nc_delay
  • delay the output of the gcode based on the machining time option 1x 2x, etc
• nc_shortlines
  • split incoming gcode into short line segments
  • ~~cli option --arc-only~~
• nc_slice
  • Segments a 3d model into 2d slices for further processing
• nc_contour_drill
  • Generate a drill pattern bounded by the input gcode path
• nc_contour_offset
  • Generate contour parallel offsets from gcode path
• nc_linear_ramp
  • Convert plunge into linear ramp along path

~~not implemented / not complete~~

• ~~nc_fold_moves~~
  • fold adajacent G00 moves
• ~~nc_pick~~
  • nc_stop --at-comment blah --at-line 205 --at-tool 3
  • selectively pick gcode from file
  • e.g. within bounding box
• ~~nc_inspect~~
  • allow playback of the gcode
  • feed rate override + pause
  • seek forward and backward
  • zoom to section of timeline
• ~~nc_scale~~
  • scale gcode axes up or down
• ~~nc_offset_rotational_origin~~
  • translate to/from tool local (canonical) rotations to world rotation (e.g. rotary tables)
• ~~nc_feedrate~~
  • analyse / optimise feedrate of provided gcode
• ~~nc_lathe_roughing~~
  • G70/G71 canned cycle style lathe roughing generator
• ~~nc_blueprint~~
  • Generate SVG blueprint with 3 ortho + perspective view of gcode / model.
• ~~nc_annotate~~
  • Analyses and adds annotations to input gcode, e.g. path continuity
• ~~nc_contour_spiral~~
  • Generate spiral toolpaths from gcode path

Generators

• ~~lathe_path~~
  • generate lathe operations for svg path
  • TODO determine machining strategy for lathe operations based on different tools and back faces
• ~~mill_path~~
  • generate profile operation for svg path
  • pick from SVG file with xpath pattern
  • opt. scale / transform
  • profile / pocket