bissen21/Marlin_Firmware
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Added a feature to have filament change by gcode or display trigger.

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[default off for now]
syntax: M600  X[pos] Y[pos] Z[relative lift] E[initial retract] L[later retract distance for removal]

if enabled, after a M600, the printer will retract by E, lift by Z, move to XY, retract even more filament.
Oh, and it will display "remove filament" and beep like crazy.

You are then supposed to insert a new filament (other color, e.g.) and click the display to continue.
After having the nozzle cleaned manually, aided by the disabled e-steppers.
After clicking, the printer will then go back the whole shebang, and continue printing with a fancy new color.
This commit is contained in:
Bernhard
2013-01-27 13:21:34 +01:00
parent 408b349a84
commit 1d06b10962
4 changed files with 150 additions and 1 deletions
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125
Marlin/Marlin_main.cpp
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@@ -126,6 +126,7 @@
// M502 - reverts to the default "factory settings". You still need to store them in EEPROM afterwards if you want to.
// M503 - print the current settings (from memory not from eeprom)
// M540 - Use S[0|1] to enable or disable the stop SD card print on endstop hit (requires ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED)
// M600 - Pause for filament change X[pos] Y[pos] Z[relative lift] E[initial retract] L[later retract distance for removal]
// M907 - Set digital trimpot motor current using axis codes.
// M908 - Control digital trimpot directly.
// M350 - Set microstepping mode.
@@ -1506,6 +1507,130 @@ void process_commands()
}
break;
#endif
#ifdef FILAMENTCHANGEENABLE
case 600: //Pause for filament change X[pos] Y[pos] Z[relative lift] E[initial retract] L[later retract distance for removal]
{
float target[4];
float lastpos[4];
target[X_AXIS]=current_position[X_AXIS];
target[Y_AXIS]=current_position[Y_AXIS];
target[Z_AXIS]=current_position[Z_AXIS];
target[E_AXIS]=current_position[E_AXIS];
lastpos[X_AXIS]=current_position[X_AXIS];
lastpos[Y_AXIS]=current_position[Y_AXIS];
lastpos[Z_AXIS]=current_position[Z_AXIS];
lastpos[E_AXIS]=current_position[E_AXIS];
//retract by E
if(code_seen('E'))
{
target[E_AXIS]+= code_value();
}
else
{
#ifdef FILAMENTCHANGE_FIRSTRETRACT
target[E_AXIS]+= FILAMENTCHANGE_FIRSTRETRACT ;
#endif
}
plan_buffer_line(target[X_AXIS], target[Y_AXIS], target[Z_AXIS], target[E_AXIS], feedrate/60, active_extruder);
//lift Z
if(code_seen('Z'))
{
target[Z_AXIS]+= code_value();
}
else
{
#ifdef FILAMENTCHANGE_ZADD
target[Z_AXIS]+= FILAMENTCHANGE_ZADD ;
#endif
}
plan_buffer_line(target[X_AXIS], target[Y_AXIS], target[Z_AXIS], target[E_AXIS], feedrate/60, active_extruder);
//move xy
if(code_seen('X'))
{
target[X_AXIS]+= code_value();
}
else
{
#ifdef FILAMENTCHANGE_XPOS
target[X_AXIS]= FILAMENTCHANGE_XPOS ;
#endif
}
if(code_seen('Y'))
{
target[Y_AXIS]= code_value();
}
else
{
#ifdef FILAMENTCHANGE_YPOS
target[Y_AXIS]= FILAMENTCHANGE_YPOS ;
#endif
}
plan_buffer_line(target[X_AXIS], target[Y_AXIS], target[Z_AXIS], target[E_AXIS], feedrate/60, active_extruder);
if(code_seen('L'))
{
target[E_AXIS]+= code_value();
}
else
{
#ifdef FILAMENTCHANGE_FINALRETRACT
target[E_AXIS]+= FILAMENTCHANGE_FINALRETRACT ;
#endif
}
plan_buffer_line(target[X_AXIS], target[Y_AXIS], target[Z_AXIS], target[E_AXIS], feedrate/60, active_extruder);
//finish moves
st_synchronize();
//disable extruder steppers so filament can be removed
disable_e0();
disable_e1();
disable_e2();
delay(100);
LCD_ALERTMESSAGEPGM(MSG_FILAMENTCHANGE);
uint8_t cnt=0;
while(!LCD_CLICKED){
cnt++;
manage_heater();
manage_inactivity();
lcd_update();
#if BEEPER > -1
if(cnt==0)
{
SET_OUTPUT(BEEPER);
WRITE(BEEPER,HIGH);
delay(3);
WRITE(BEEPER,LOW);
delay(3);
}
#endif
}
//return to normal
if(code_seen('L'))
{
target[E_AXIS]+= -code_value();
}
else
{
#ifdef FILAMENTCHANGE_FINALRETRACT
target[E_AXIS]+=(-1)*FILAMENTCHANGE_FINALRETRACT ;
#endif
}
current_position[E_AXIS]=target[E_AXIS]; //the long retract of L is compensated by manual filament feeding
plan_set_e_position(current_position[E_AXIS]);
plan_buffer_line(target[X_AXIS], target[Y_AXIS], target[Z_AXIS], target[E_AXIS], feedrate/60, active_extruder); //should do nothing
plan_buffer_line(lastpos[X_AXIS], lastpos[Y_AXIS], target[Z_AXIS], target[E_AXIS], feedrate/60, active_extruder); //move xy back
plan_buffer_line(lastpos[X_AXIS], lastpos[Y_AXIS], lastpos[Z_AXIS], target[E_AXIS], feedrate/60, active_extruder); //move z back
plan_buffer_line(lastpos[X_AXIS], lastpos[Y_AXIS], lastpos[Z_AXIS], lastpos[E_AXIS], feedrate/60, active_extruder); //final untretract
}
break;
#endif //FILAMENTCHANGEENABLE
case 907: // M907 Set digital trimpot motor current using axis codes.
{
#if DIGIPOTSS_PIN > -1