Knob for rotary encoder or potentiometer

Customized version of http://www.thingiverse.com/thing:1072393

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=1072393

Instructions

Using the following options:

Axis_Lenght = 7

Knob_Diameter = 20

Knob_Height = 17

Ajustment = 0.2

Rounded = 2