Cutting Regular Hexagons With gCode

 Thanks for the help.  The following bash script will generate gCode for cutting a regular hexagon.  The parameters should be obvious enough when you read it.

#!/bin/bash
if [[ $# -lt 8 ]];
   then echo "$0 xstart ystart zstart zstep zend xyfeed z feed height"
   exit 2;
fi
cat prolog.nc >hexagon.nc
xstart=$1
ystart=$2
zstart=$3
zstep=$4
zend=$5
xyfeed=$6
zfeed=$7
height=$8
halfheight=`echo "$height/2" | bc -l`
oneandonehalfheight=`echo "$height*1.5" | bc -l`
doubleheight=`echo "$height*2" | bc -l`
sqrt3div2=`echo "$height * .866" | bc -l`
sqrt3=`echo "$sqrt3div2*2" | bc -l`
cat prolog.nc >hexagon.nc
echo "g1 z1 f25" >>hexagon.nc
for z in $(seq $zstart $zstep $zend)
do
    echo "g1 x$xstart y$ystart f$xyfeed" >>hexagon.nc
    echo "g1 z$z f$zfeed" >>hexagon.nc
    # First vertex
    echo "g1 x$halfheight y$sqrt3div2 f$xyfeed" >>hexagon.nc
    # second vertice
    echo "g1 x$oneandonehalfheight y$sqrt3div2 f$xyfeed" >>hexagon.nc
    # far (third) vertex
    echo "g1 x$doubleheight y$ystart f$xyfeed" >>hexagon.nc
    # fourth vertex
    echo "g1 x$oneandonehalfheight y-$sqrt3div2 f$xyfeed" >>hexagon.nc
    # fifth vertex
    echo "g1 x$halfheight y-$sqrt3div2 f$xyfeed" >>hexagon.nc
    # back to start of hexagon
done
echo "g1 z0 f25" >>hexagon.nc
cat epilog.nc >>hexagon.nc

The prolog amd epilog files are just to have consistent gCode files.

prolog.nc

%
g17 g20 g54

epilog.nc

m2
%