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

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

Using the following options:

HoleDiameter = 6
HoleDepth = 10
HoleFlatThickness = 0
KnobHeight = 20
KnobDiameter = 20
CapType = 1
TimerKnob = 1
Pointer1 = 1
Pointer2 = 0
Knurled = 0
TaperPercentage = 30
RingWidth = 15
RingMarkings = 15
ScrewHoleDiameter = 3
ShaftLength = 0
ShaftDiameter = 10
NotchedShaft = 0