Kicad script

# execfile("C:\My\Projects\PCB\Heating Table\power_unit.py")

import pcbnew
board = pcbnew.GetBoard()
print board.GetFileName()

def AddBox(center_x, center_y, width, height):
    #pos += null_pos
    #AddLine(pos - [size[0], 0], pos + [sizep[0], 0])
    #AddLine(pos - [size[0], 0])
    center_x += null_pos[0]
    center_y += null_pos[1]

    half_width = width / 2
    half_height = height / 2

    lines = [
        ((center_x - half_width, center_y - half_height), (center_x + half_width, center_y - half_height)),
        ((center_x + half_width, center_y - half_height), (center_x + half_width, center_y + half_height)),
        ((center_x + half_width, center_y + half_height), (center_x - half_width, center_y + half_height)),
        ((center_x - half_width, center_y + half_height), (center_x - half_width, center_y - half_height))
    ]

    for start, end in lines:
        AddLine(start[0], start[1], end[0], end[1])

def AddLine(from_x, from_y, to_x, to_y):
    line = pcbnew.DRAWSEGMENT(board)
    line.SetShape(pcbnew.S_SEGMENT)
    line.SetLayer(pcbnew.Edge_Cuts)
    line.SetStart(pcbnew.wxPointMM(from_x, from_y))
    line.SetEnd(pcbnew.wxPointMM(to_x, to_y))
    line.SetWidth(pcbnew.FromMM(0.1))
    board.Add(line) #Add line

def AddHole(pos_x, pos_y):
    pos_x += null_pos[0]
    pos_y += null_pos[1]

    hole = pcbnew.VIA(board)
    hole.SetPosition(pcbnew.wxPointMM(pos_x, pos_y))
    hole.SetDrill(pcbnew.FromMM(1.0))
    hole.SetWidth(pcbnew.FromMM(1.5))
    board.Add(hole)

#Default coordinate
null_pos = [15, 15]

#Add Back. 20x20 + holes
AddBox(10, 10, 20, 20)
AddBox(100, 10, 20, 20)
AddHole(4, 14)
AddHole(14, 4)
AddHole(110 - 4, 14)
AddHole(110 - 14, 4)

#Add Step down XL4015
AddBox(55, 15, 51, 26)
# !!! Add holes

#Add Power In
AddBox(100, 35, 20, 20)
# !!! Add holes

#Add USB Out
AddBox(67 / 2, 45, 67, 19)

#Add Front panel
AddBox(55, 80, 110, 40)
# !!! Add holes

Refresh()