'Create an extruder instance. An instance is automatically create at reprap.extruder.'

def __init__(self):

    self.address = 8
    self.active = False
    self.requestedTemperature = 0
    self.vRefFactor = 7
    self.hb = 20
    self.hm = 1.66667
    self.absZero = 273.15
    self.rz = 29000
    self.beta = 3480
    self.vdd = 5.0
    self.cap = 1e-07
