Customized version of http://www.thingiverse.com/thing:1657791

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=1657791

Using the following options:

SupportHeight = 5
Height = 40
SupportDistance = 0.25
Rotation = 45
XCount = 3
FlatBottom = no
WallThickness = 2
SuperEllipsePower = 1.5
XDistance = 24
YDistance = 24
Diameter = 30
SineCutoutHeight = 1.5
GenerateBaseSupport = no
YCount = 3