#<xmax> =    9
  #<ymax> =    4
#<zdepth> =    0
  #<feed> =   20

#<x1> = [0.25 * #<xmax>]
#<y1> = [0.66 * #<ymax>]
#<z1> = 0

#<x2> = [0.50 * #<xmax>]
#<y2> = 0
#<z2> = -.5

#<x3> = [0.75 * #<xmax>]
#<y3> = 0
#<z3> = 0

#<x4> = #<x3>
#<y4> = #<y1>
#<z4> = 0

m111 ;clear notifications
g61
g0x0y0z0

f #<feed>
g1 x #<x1>      y #<y1>    z #<z1>
g1 x #<x2>      y #<y2>    z #<z2>
g1 x #<x3>      y #<y3>    z #<z3>
g1 x #<x4>      y #<y4>    z #<z4>
g1 x #<xmax>    y #<ymax>
g0x0y0z0

m111 ;clear notifications
m2