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extruder: Create a new class and python file to track the printer extruder

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Create a new python file (extruder.py) to control the extruder heater
and stepper motors.  This separates the extruder control logic from
the cartesian robot code - making it easier to customize both the
kinematic control of the robot as well as the extruder.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2016-07-10 12:23:35 -04:00
parent 4a527a46ce
commit af99ab1645
8 changed files with 88 additions and 27 deletions
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17
config/example.cfg
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@ -77,19 +77,19 @@ position_min: 0.1
position_endstop: 0.5
position_max: 200
# The stepper_e section is used to describe the stepper controlling
# the printer extruder. It has the same settings as the stepper_x
# section
[stepper_e]
# The extruder section is used to describe both the stepper
# controlling the printer extruder and the heater parameters for the
# nozzle. The stepper configuration has the same settings as the
# stepper_x section and the heater configuration has the same settings
# as the heater_bed section
[extruder]
step_pin: ar19
dir_pin: ar18
enable_pin: !ar25
step_distance: .004242
max_velocity: 200000
max_accel: 3000
# The heater_nozzle section describes the extruder and extruder heater
[heater_nozzle]
# The remaining variables describe the extruder heater
heater_pin: ar4
# PWM output pin controlling the heater
thermistor_pin: analog1
@ -118,8 +118,7 @@ max_temp: 210
# this value)
# The heater_bed section describes a heated bed (if present - omit
# section if not present). It has the same settings as the
# heater_nozzle section
# section if not present).
[heater_bed]
heater_pin: ar3
thermistor_pin: analog0