Customized version of http://www.thingiverse.com/thing:1019361

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=1019361

Using the following options:

wall = 2.0
botHeight = 20.0
CHAMFEREDGES = 1
width = 59
maWidth = 5.5
maSpacer = 1.0
topHeight = 10.0
hiHeight = 0.0
backwall = 6.0
floor = 3.0
maLength = 5.5
hiDia = 3.0
length = 93
maHeight = 5.5
CHAMFERLEN = 3.0