Customized version of http://www.thingiverse.com/thing:2446160

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=2446160

Using the following options:

Yturn = 0
och = 1
$fn = 70
of = 0.1
orient = [0,0,-90]
Zholes = [ [X0.5,Y0.5,Y0.32],[X0.1,Y0.9, 1],[X0.9,Y0.9, 1],[X0.1,Y0.1, 1],[X0.9,Y0.1, 1]]
YallBreak = [0.1,0.1,0.3,0.3,of]
Zturn = 0
Zstock = [X,Y ]
ZhoBreak = [ich,0,ird,0,of]
Xturn = 1
Xstock = [[[0,0],[Y/2,0],[Y/3,Z,0],[0,Z]] ,[[0,0,5],[14,0,5]]]
YaddBack = [ ]
ZstBreak = [ich,och,ird,ord,of]
ZallBreak = [0.1,0.1,0.3,0.3,of]
YstBreak = [ich,och,ird,ord,of]
ird = 0.5
Z = 40
Y = 20
X = 30
XaddBack = [ ]
XallBreak = [0.1,0.1,0.3,0.3,of]
Xholes =
YhoBreak = [ich,0,ird,0,of]
ZaddBack = [ ]
ord = 0.5
Ystock = [ [[0,0],[0,Z0.3],[X0.4,Z0.3],[X0.4,Z],[X0.6,Z],[X0.6,Z0.3],[X,Z0.3],[X,0]] ]
ich = 1
Yholes = [[X0.5,Z*0.7,1] ]
XhoBreak = [0,0,0,0,of]
XstBreak = [0,0,0,0,of]
helpZ = 666
helpY = 666
helpX = 666