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// Class for controlling each extruder
//
// Adrian Bowyer 14 May 2009
#ifndef EXTRUDER_H
#define EXTRUDER_H
#define EXTRUDER_FORWARD true
#define EXTRUDER_REVERSE false
#define EXTRUDER_COUNT 1
void manage_all_extruders();
class extruder
{
private:
//these our the default values for the extruder.
byte e_speed;
int target_celsius;
int max_celsius;
byte heater_low;
byte heater_high;
byte heater_current;
int extrude_step_count;
// These are used for temperature control
byte count ;
int oldT, newT;
//this is for doing encoder based extruder control
int rpm;
long e_delay;
int error;
int last_extruder_error;
int error_delta;
bool e_direction;
bool valve_open;
// The pins we control
byte motor_dir_pin, motor_speed_pin, heater_pin, fan_pin, temp_pin, valve_dir_pin, valve_en_pin, step_en_pin;
public:
extruder(byte md_pin, byte ms_pin, byte h_pin, byte f_pin, byte t_pin, byte vd_pin, byte ve_pin, byte se_pin);
void wait_for_temperature();
//byte wait_till_cool();
byte wait_till_hot();
void temperature_error();
void valve_set(bool open, int millis);
void set_direction(bool direction);
// void set_speed(float es);
void set_cooler(byte e_speed);
void set_temperature(int temp);
int get_temperature();
int sample_temperature(byte pin);
void manage();
// Interrupt setup and handling functions for stepper-driven extruders
void interrupt();
void step();
void enableStep();
void disableStep();
};
inline void extruder::enableStep()
{
if(step_en_pin < 0)
return;
digitalWrite(step_en_pin, ENABLE_ON); // Should be ENABLE_ON, but I have a mix of controllers
}
inline void extruder::disableStep()
{
if(step_en_pin < 0)
return;
digitalWrite(step_en_pin, !ENABLE_ON);
}
inline void extruder::step()
{
digitalWrite(motor_speed_pin, HIGH);
delayMicroseconds(5);
digitalWrite(motor_speed_pin, LOW);
}
inline void extruder::temperature_error()
{
Serial.print("E: ");
Serial.println(get_temperature());
}
//warmup if we're too cold; cool down if we're too hot
inline void extruder::wait_for_temperature()
{
/*
if(wait_till_cool())
{
temperature_error();
return;
}
*/
if(wait_till_hot())
temperature_error();
}
inline void extruder::set_direction(bool dir)
{
e_direction = dir;
digitalWrite(motor_dir_pin, e_direction);
}
inline void extruder::set_cooler(byte sp)
{
if(step_en_pin >= 0) // Step enable conflicts with the fan
return;
analogWrite(fan_pin, sp);
}
#endif
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