Customized version of http://www.thingiverse.com/thing:54024

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=54024

Using the following options:

RingMarkings = 10
RingWidth = 0
Knurled = 0
Pointer2 = 1
Pointer1 = 0
NotchedShaft = 0
KnobHeight = 15
ScrewHoleDiameter = 3
HoleDepth = 10
ShaftLength = 0
ShaftDiameter = 10
HoleDiameter = 8
TaperPercentage = 10
CapType = 0
HoleFlatThickness = 0
TimerKnob = 1
KnobDiameter = 20