FlatCAM

FlatCAM: 2D Computer-Aided PCB Manufacturing

(c) 2014-2015 Juan Pablo Caram

FlatCAM is a program for preparing CNC jobs for making PCBs on a CNC router. Among other things, it can take a Gerber file generated by your favorite PCB CAD program, and create G-Code for Isolation routing.

####### my own shell script

new set_sys units MM

######### BOTTOM layer

LOAD

open_gerber /path/to/Gerber/Loop_contour.gm1 -outname BCu_margin open_gerber /path/to/Gerber/Loop_copperBottom.gbl -outname BCu open_excellon /path/to/Gerber/Loop_drill.txt -outname BCu_drills

#MIRROR mirror BCu -box BCu_margin -axis X mirror BCu_drills -box BCu_margin -axis X

#ALIGNHOLES aligndrill BCu_margin -dia 3 -box BCu_margin -grid 10 -gridoffset 5 -axisoffset 0 -axis X

#CUTOUT isolate BCu_margin -dia 3 -overlap 1 exteriors BCu_margin_iso -outname BCu_margin_iso_exterior delete BCu_margin_iso geocutout BCu_margin_iso_exterior -dia 3 -gapsize 0.2 -gaps 4

#ISOLATE TRACES exteriors BCu_margin -outname BCu_exterior isolate BCu -dia 0.8 -overlap 1

#JOIN TRACES and basic exterior join_geometries BCu_join_iso BCu_iso BCu_exterior

#CNCJOBS drillcncjob BCu_drills -tools 100,101,102,103,104 -drillz -2 -travelz 2 -feedrate 5 -outname BCu_drills_0.8 drillcncjob BCu_margin_aligndrill -tools 1 -drillz -2 -travelz 2 -feedrate 5 -outname BCu_drills_3

cncjob BCu_join_iso -tooldia 0.6 #cncjob BCu_margin_cutout -tooldia 3 cncjob BCu_margin_iso_exterior -tooldia 3

#GENERATE GCODE

write_gcode BCu_join_iso_cnc /path/to/Gerber/output/Loop-BCu.pngc write_gcode BCu_margin_iso_exterior_cnc /path/to/Gerber/output/Loop-BCu-Margin.ngc write_gcode BCu_drills_0.8 /path/to/Gerber/output/Loop-BCu.drl_0.8.ngc write_gcode BCu_drills_3 /path/to/Gerber/output/Loop-BCu.drl_3.ngc

######### TOP layer

LOAD

open_gerber /path/to/Gerber/Loop_contour.gm1 -outname FCu_margin open_gerber /path/to/Gerber/Loop_copperTop.gtl -outname FCu open_excellon /path/to/Gerber/Loop_drill.txt -outname FCu_drills

#ALIGNHOLES aligndrill FCu_margin -dia 3 -box FCu_margin -grid 10 -gridoffset 5 -axisoffset 0 -axis X

#CUTOUT isolate FCu_margin -dia 3 -overlap 1 exteriors FCu_margin_iso -outname FCu_margin_iso_exterior delete FCu_margin_iso geocutout FCu_margin_iso_exterior -dia 3 -gapsize 0.2 -gaps 4

#ISOLATE TRACES exteriors FCu_margin -outname FCu_exterior isolate FCu -dia 0.8 -overlap 1

#JOIN TRACES and basic exterior join_geometries FCu_join_iso FCu_iso FCu_exterior

#CNCJOBS drillcncjob FCu_drills -tools 100,101,102,103,104 -drillz -2 -travelz 2 -feedrate 5 -outname FCu_drills_0.8 drillcncjob FCu_margin_aligndrill -tools 1 -drillz -2 -travelz 2 -feedrate 5 -outname FCu_drills_3

cncjob FCu_join_iso -tooldia 0.6 #cncjob FCu_margin_cutout -tooldia 3 cncjob FCu_margin_iso_exterior -tooldia 3

#GENERATE GCODE

write_gcode FCu_join_iso_cnc /path/to/Gerber/output/Loop-FCu.pngc write_gcode FCu_margin_iso_exterior_cnc /path/to/Gerber/output/Loop-FCu-Margin.ngc write_gcode FCu_drills_0.8 /path/to/Gerber/output/Loop-FCu.drl_0.8.ngc write_gcode FCu_drills_3 /path/to/Gerber/output/Loop-FCu.drl_3.ngc